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codebriefly · 2 months ago

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New Post has been published on https://codebriefly.com/building-and-deploying-angular-19-apps/

Building and Deploying Angular 19 Apps

Efficiently building and deploying Angular 19 applications is crucial for delivering high-performance, production-ready web applications. In this blog, we will cover the complete process of building and deploying Angular 19 apps, including best practices and optimization tips.

Table of Contents

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Why Building and Deploying Matters

Preparing Your Angular 19 App for Production

Building Angular 19 App

Key Optimizations in Production Build:

Configuration Example:

Deploying Angular 19 App

Deploying on Firebase Hosting

Deploying on AWS S3 and CloudFront

Automating Deployment with CI/CD

Example with GitHub Actions

Best Practices for Building and Deploying Angular 19 Apps

Final Thoughts

Why Building and Deploying Matters

Building and deploying are the final steps of the development lifecycle. Building compiles your Angular project into static files, while deploying makes it accessible to users on a server. Proper optimization and configuration ensure faster load times and better performance.

Preparing Your Angular 19 App for Production

Before building the application, make sure to:

Update Angular CLI: Keep your Angular CLI up to date.

npm install -g @angular/cli

Optimize Production Build: Enable AOT compilation and minification.

Environment Configuration: Use the correct environment variables for production.

Building Angular 19 App

To create a production build, run the following command:

ng build --configuration=production

This command generates optimized files in the dist/ folder.

Key Optimizations in Production Build:

AOT Compilation: Reduces bundle size by compiling templates during the build.

Tree Shaking: Removes unused modules and functions.

Minification: Compresses HTML, CSS, and JavaScript files.

Source Map Exclusion: Disables source maps for production builds to improve security and reduce file size.

Configuration Example:

Modify the angular.json file to customize production settings:

"configurations": "production": "optimization": true, "outputHashing": "all", "sourceMap": false, "namedChunks": false, "extractCss": true, "aot": true, "fileReplacements": [ "replace": "src/environments/environment.ts", "with": "src/environments/environment.prod.ts" ]

Deploying Angular 19 App

Deployment options for Angular apps include:

Static Web Servers (e.g., NGINX, Apache)

Cloud Platforms (e.g., AWS S3, Firebase Hosting)

Docker Containers

Serverless Platforms (e.g., AWS Lambda)

Deploying on Firebase Hosting

Install Firebase CLI:

npm install -g firebase-tools

firebase login

Initialize Firebase Project:

firebase init hosting

Deploy the App:

firebase deploy

Deploying on AWS S3 and CloudFront

Build the Project:

ng build --configuration=production

Upload to S3:

aws s3 sync ./dist/my-app s3://my-angular-app

Configure CloudFront Distribution: Set the S3 bucket as the origin.

Automating Deployment with CI/CD

Setting up a CI/CD pipeline ensures seamless updates and faster deployments.

Example with GitHub Actions

Create a .github/workflows/deploy.yml file:

name: Deploy Angular App on: [push] jobs: build-and-deploy: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - name: Set up Node.js uses: actions/setup-node@v2 with: node-version: '18' - run: npm install - run: npm run build -- --configuration=production - name: Deploy to S3 run: aws s3 sync ./dist/my-app s3://my-angular-app --delete

Best Practices for Building and Deploying Angular 19 Apps

Optimize for Production: Always use AOT and minification.

Use CI/CD Pipelines: Automate the build and deployment process.

Monitor Performance: Utilize tools like Lighthouse to analyze performance.

Secure the Application: Enable HTTPS and configure secure headers.

Cache Busting: Use hashed filenames to avoid caching issues.

Containerize with Docker: Simplifies deployments and scales easily.

Final Thoughts

Building and deploying Angular 19 applications efficiently can significantly enhance performance and maintainability. Following best practices and leveraging cloud hosting services ensure that your app is robust, scalable, and fast. Start building your next Angular project with confidence!

Keep learning & stay safe 😉

You may like:

Testing and Debugging Angular 19 Apps

Performance Optimization and Best Practices in Angular 19

UI/UX with Angular Material in Angular 19

#Angular #Angular 19

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zockainternet · 2 years ago

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Nesse passo a passo estarei mostrando um exemplo de como integrar um chat bot GPT-3 que é uma API da OPENAI, que criou o ChatGPT. Integrando Chat GPT com WhatsApp Para fazer esse procedimento estou usando um servidor com Debian (mas já testei o funcionamento com ubuntu 18...). A integração está sendo feita com: node.js venom-bot api da openai OBS IMPORTANTE: Nos testes que realizei, criei um servidor apenas para essa finalidade, se você não tiver conhecimento técnico suficiente para entender o que está sendo feito, sugiro que instale em uma maquina virtual. Neste exemplo, estou utilizando usuário "root" para fazer todo procedimento. Instalando o node.js e atualizando o servidor Vamos começar atualizando o sistema e instalando node.js no servidor: sudo apt-get update -y && apt-get upgrade -y curl -fsSL https://deb.nodesource.com/setup_current.x | sudo -E bash - sudo apt-get update sudo apt install nodejs -y Depois disso, vamos instalar as dependências no servidor: sudo apt-get update sudo apt-get install -y gconf-service libasound2 libatk1.0-0 libatk-bridge2.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget libgbm-dev Após a instalações dessas bibliotecas, considere reiniciar o servidor. Prosseguindo, agora vamos instalar o venom-bot que será responsavel por conectar o chatbot ao WhatsApp: cd /root mkdir chatbot-whatsapp cd chatbot-whatsapp touch index.js npm i venom-bot No arquivo index, você vai colocar esse código: const venom = require('venom-bot'); venom .create() .then((client) => start(client)); function start(client) client.onMessage((message) => if (message.body === 'Olá' ); Agora teste o funcionamento e veja se o chatbot está funcionando digitando esse comando abaixo no terminal do servidor: node index.js Se estiver tudo certo, será exibido um QRCode para você autorizar o navegador dessa aplicação a usar o seu WhatsApp [caption id="attachment_1011" align="alignnone" width="300"] Exemplo de QRCode do chatbot[/caption] Depois disso, poderá testar digitando um "Olá" ou "Oi" para o WhatsApp conectado ao chatbot. E ele deverá responder pra você "Estou pronto!" [caption id="attachment_1012" align="alignnone" width="300"] Exemplo de resposta do chatbot[/caption] Se até essa etapa está tudo ok, podemos prosseguir. Instalando a API do OPenAI e integrando com WhatsApp Agora vamos para integração com a api do openai, vamos fazer a integração do gpt-3 com o WhatsApp Para isso, vamos instalar a api do openai: cd /root/chatbot-whatsapp npm i openai Deverá criar um arquivo chamado ".env" com suas credenciais de acesso do openai (organização e api de acesso). OBS IMPORTANTE: é necessário se cadastrar no site da openai.com Depois disso poderá adquirir as informações nos seguintes links: OPENAI_API_KEY=https://platform.openai.com/account/api-keys ORGANIZATION_ID=https://platform.openai.com/account/org-settings Já o "PHONE_NUMBER=" é o numero do WhatsApp que você vai colocar no qrcode. touch .env echo "OPENAI_API_KEY=COLEAQUISUAAPI" >> /root/chatbot-whatsapp/.env echo "ORGANIZATION_ID=COLEAQUISUAORGANIZACAO" >> /root/chatbot-whatsapp/.env echo "[email protected]" >> /root/chatbot-whatsapp/.env Agora você pode substituir o código do arquivo index, ou criar um novo arquivo para testar, neste exemplo estou criando um novo arquivo: touch gpt.js E deverá colocar o seguinte código nele: const venom = require('venom-bot'); const dotenv = require('dotenv'); const Configuration, OpenAIApi = requ

ire("openai"); dotenv.config(); venom.create( session: 'bot-whatsapp', multidevice: true ) .then((client) => start(client)) .catch((error) => console.log(error); ); const configuration = new Configuration( organization: process.env.ORGANIZATION_ID, apiKey: process.env.OPENAI_API_KEY, ); const openai = new OpenAIApi(configuration); const getGPT3Response = async (clientText) => const options = model: "text-davinci-003", prompt: clientText, temperature: 1, max_tokens: 4000 try const response = await openai.createCompletion(options) let botResponse = "" response.data.choices.forEach(( text ) => botResponse += text ) return `Chat GPT ??\n\n $botResponse.trim()` catch (e) return `? OpenAI Response Error: $e.response.data.error.message` const commands = (client, message) => const iaCommands = davinci3: "/bot", let firstWord = message.text.substring(0, message.text.indexOf(" ")); switch (firstWord) case iaCommands.davinci3: const question = message.text.substring(message.text.indexOf(" ")); getGPT3Response(question).then((response) => /* * Faremos uma validação no message.from * para caso a gente envie um comando * a response não seja enviada para * nosso próprio número e sim para * a pessoa ou grupo para o qual eu enviei */ client.sendText(message.from === process.env.PHONE_NUMBER ? message.to : message.from, response) ) break; async function start(client) client.onAnyMessage((message) => commands(client, message)); Agora teste o funcionamento e veja se a integração está funcionando digitando esse comando abaixo no terminal do servidor: node gpt.js Se estiver tudo certo, será exibido um QRCode para você autorizar o navegador dessa aplicação a usar o seu WhatsApp Depois disso, poderá testar digitando qualquer frase ou pergunta iniciando por "/bot" Então o bot vai responder você com a inteligência artificial configurada no código do arquivo gpt.js [caption id="attachment_1014" align="alignnone" width="300"] Resposta do chat gpt-3[/caption] Bom é isso, espero que esse passo a passo ajude você. Reiterando que utilizei um servidor somente para essa finalidade, ou seja, para fins de testes. Referencias para publicação desse passo a passo: https://github.com/victorharry/zap-gpt https://platform.openai.com https://github.com/orkestral/venom

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computingpostcom · 3 years ago

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How can I install Elasticsearch 7, ElasticSearch 6, or 5 on the Ubuntu 20.04/18.04/16.04 Linux system?. This guide will help you to install Elasticsearch 7/6/5 on Ubuntu 20.04/18.04/16.04. Elasticsearch is an Open Source full-text search and analytics engine tool used to store, search, and analyze big volumes of data in near real-time. The Debian package for Elasticsearch can be downloaded from the website or from our APT repository. In this guide, we will use the APT installation method, which installs Elasticsearch on any Debian-based system such as Debian and Ubuntu. We will install the free version which is released under the Elastic license. See the Subscriptions page for information about Elastic license levels. Here are the steps you’ll need to install ElasticSearch 7, 6 or 5 on Ubuntu Linux. For multi-node cluster, refer to Setup Elasticsearch Cluster on CentOS | Ubuntu With Ansible Step 1: Update your system I like starting all installations on an updated system. sudo apt update sudo apt -y upgrade Step 2: Import the Elasticsearch PGP Key Import Elasticsearch Signing Key used to sign all Elastic packages. Run the following command to download and install the public signing key: sudo apt -y install gnupg wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add - Step 3: Add APT repository Next, we add the Elasticsearch APT repository from where we will download and install the packages. For Elasticsearch 7.x (Latest): sudo apt -y install apt-transport-https echo "deb https://artifacts.elastic.co/packages/oss-7.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-7.x.list For Elasticsearch 6.x: sudo apt -y install apt-transport-https echo "deb https://artifacts.elastic.co/packages/oss-6.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-6.x.list For Elasticsearch 5.x: sudo apt -y install apt-transport-https echo "deb https://artifacts.elastic.co/packages/oss-5.x/apt stable main" | sudo tee /etc/apt/sources.list.d/elastic-5.x.list Step 4: Install Elasticsearch on Ubuntu 20.04/18.04/16.04 Then install the Elasticsearch Debian package by running: sudo apt update sudo apt -y install elasticsearch-oss After the installation, a default configuration file will be populated to /etc/elasticsearch/elasticsearch.yml. Most lines are commented out, edit the file to tweak and tune the configuration. E.g, you can set the correct cluster name for your applications: cluster.name: my-application Note that the default minimum memory set for JVM is 2gb, if your server has small memory size, change this value: sudo nano /etc/elasticsearch/jvm.options Change: -Xms2g -Xmx2g And set your values for minimum and maximum memory allocation. E.g to set values to 512mb of ram, use: -Xms512m -Xmx512m Note that it is recommended to set the min and max JVM heap size to the same value. Xms represents the initial size of total heap space and Xmx represents the maximum size of total heap space. After you have modified the configuration, you can start Elasticsearch: sudo systemctl enable elasticsearch.service && sudo systemctl restart elasticsearch.service Check elasticsearch service status: $ systemctl status elasticsearch.service ● elasticsearch.service - Elasticsearch Loaded: loaded (/lib/systemd/system/elasticsearch.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2019-05-03 09:18:39 PDT; 18s ago Docs: http://www.elastic.co Main PID: 21459 (java) Tasks: 18 (limit: 1093) Memory: 429.0M CGroup: /system.slice/elasticsearch.service ├─21459 /usr/share/elasticsearch/jdk/bin/java -Xms512m -Xms512m -XX:+UseConcMarkSweepGC -XX:CMSIn └─21589 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller May 03 09:18:39 ubuntu systemd[1]: Started Elasticsearch. You have deployed a single node Elasticsearch cluster on your Ubuntu system.

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aerogreys · 3 years ago

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Debian gui nfs manager

#Debian gui nfs manager how to#

#Debian gui nfs manager install#

After adding the server, you can use it for storage for your deployments. Within Rancher, add the NFS server as a storage volume and/or storage class. Result: Your NFS server is configured to be used for storage with your Rancher nodes. For example, the following command opens port 2049: sudo ufw allow 2049 the graphical desktop (window manager), the Internet, version control syst. Open the ports that the previous command outputs. When I started with Linux, there was a user-space nfs server available. To find out what ports NFS is using, enter the following command: rpcinfo -p | grep nfs Update the NFS table by entering the following command: exportfs -ra Tip: You can replace the IP addresses with a subnet. nfs (rw,sync,no_subtree_check) (rw,sync,no_subtree_check) (rw,sync,no_subtree_check) Follow each address and its accompanying parameters with a single space that is a delimiter. Add an entry for each IP address in your cluster.

Open /etc/exports using your text editor of choice.Īdd the path of the /nfs folder that you created in step 3, along with the IP addresses of your cluster nodes.

This table sets the directory paths on your NFS server that are exposed to the nodes that will use the server for storage.

The chown nobody:nogroup /nfs parameter allows all access to the storage directory.Ĭreate an NFS exports table.

The -p /nfs parameter creates a directory named nfs at root.

mkdir -p /nfs & chown nobody:nogroup /nfs Your Debian server is now ready to start serving files, and you shouldn’t have any trouble setting up the rest of your client machines. Modify the command if you’d like to keep storage at a different directory.

#Debian gui nfs manager install#

Using a remote Terminal connection, log into the Ubuntu server that you intend to use for NFS storage.Įnter the following command: sudo apt-get install nfs-kernel-serverĮnter the command below, which sets the directory used for storage, along with user access rights. Recommended: To simplify the process of managing firewall rules, use NFSv4.

#Debian gui nfs manager how to#

For official instruction on how to create an NFS server using another Linux distro, consult the distro’s documentation. This procedure demonstrates how to set up an NFS server using Ubuntu, although you should be able to use these instructions for other Linux distros (e.g. Instead, skip the rest of this procedure and complete adding storage. If you already have an NFS share, you don’t need to provision a new NFS server to use the NFS volume plugin within Rancher. I'd really like the RasPi to boot up and show me the NFS files when I open the file explorer.Before you can use the NFS storage volume plug-in with Rancher deployments, you need to provision an NFS server. And they appear each time thereafter when I open the file explorer.ĭoes anyone know what's going on? Why must the file explorer be manually refreshed the first time it's opened? If your system still has gksu (Ubuntu 16.04 and higher, Linux Mint 18.x and higher, Debian Stretch or sid-debports), you can use the following command to run the Simple NFS GUI: gksu SimpleNFSGUI For Ubuntu 18. If I then return to the file explorer and press F5, the files appear. Open in Terminal - An ls command shows all the files. If I right-click on /mnt/mike and choose from the options, I get: Clearly fthe fstab entries are OK.īut when I open the GUI file explorer and navigate to /mnt/mike, I see. If I then type ls /mnt/mike, I see the expected files on the server. I can mount the shares in a terminal with sudo mount /mnt/mike, etc. I can work around that with commands (and a sleep command if necessary) in /etc/rc.local. OK, maybe the network is not up when fstab is read. When the RasPi boots, these shares are not mounted through fstab. On my RasPI 3B, /etc/fstab contains a line like this: linux:/home/mike/share /mnt/mike nfs nolock,rw,bg 0 0 for each of the three shares. It exports several directories, and I can successfully mount them on two other Linux boxes, so I have a fair (not expert) idea of how NFS works. I have a server running Debian Linux on our household network. I'm having an odd problem mounting NFS shares and seeing them in the GUI file explorer.

#Debian gui nfs manager

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globalmediacampaign · 4 years ago

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2020: The year in review for Amazon DynamoDB

2020 has been another busy year for Amazon DynamoDB. We released new and updated features that focus on making your experience with the service better than ever in terms of reliability, encryption, speed, scale, and flexibility. The following 2020 releases are organized alphabetically by category and then by dated releases, with the most recent release at the top of each category. It can be challenging to keep track of a service’s changes over the course of a year, so use this handy, one-page post to catch up or remind yourself about what happened with DynamoDB in 2020. Let us know @DynamoDB if you have questions. Amazon CloudWatch Application Insights June 8 – Amazon CloudWatch Application Insights now supports MySQL, DynamoDB, custom logs, and more. CloudWatch Application Insights launched several new features to enhance observability for applications. CloudWatch Application Insights has expanded monitoring support for two databases, in addition to Microsoft SQL Server: MySQL and DynamoDB. This enables you to easily configure monitors for these databases on Amazon CloudWatch and detect common errors such as slow queries, transaction conflicts, and replication latency. Amazon CloudWatch Contributor Insights for DynamoDB April 2 – Amazon CloudWatch Contributor Insights for DynamoDB is now available in the AWS GovCloud (US) Regions. CloudWatch Contributor Insights for DynamoDB is a diagnostic tool that provides an at-a-glance view of your DynamoDB tables’ traffic trends and helps you identify your tables’ most frequently accessed keys (also known as hot keys). You can monitor each table’s item access patterns continuously and use CloudWatch Contributor Insights to generate graphs and visualizations of the table’s activity. This information can help you better understand the top drivers of your application’s traffic and respond appropriately to unsuccessful requests. April 2 – CloudWatch Contributor Insights for DynamoDB is now generally available. Amazon Kinesis Data Streams for DynamoDB November 23 – Now you can use Amazon Kinesis Data Streams to capture item-level changes in your DynamoDB tables. Enable streaming to a Kinesis data stream on your table with a single click in the DynamoDB console, or via the AWS API or AWS CLI. You can use this new capability to build advanced streaming applications with Amazon Kinesis services. AWS Pricing Calculator November 23 – AWS Pricing Calculator now supports DynamoDB. Estimate the cost of DynamoDB workloads before you build them, including the cost of features such as on-demand capacity mode, backup and restore, DynamoDB Streams, and DynamoDB Accelerator (DAX). Backup and restore November 23 – You can now restore DynamoDB tables even faster when recovering from data loss or corruption. The increased efficiency of restores and their ability to better accommodate workloads with imbalanced write patterns reduce table restore times across base tables of all sizes and data distributions. To accelerate the speed of restores for tables with secondary indexes, you can exclude some or all secondary indexes from being created with the restored tables. September 23 – You can now restore DynamoDB table backups as new tables in the Africa (Cape Town), Asia Pacific (Hong Kong), Europe (Milan), and Middle East (Bahrain) Regions. You can use DynamoDB backup and restore to create on-demand and continuous backups of your DynamoDB tables, and then restore from those backups. February 18 – You can now restore DynamoDB table backups as new tables in other AWS Regions. Data export to Amazon S3 November 9 – You can now export your DynamoDB table data to your data lake in Amazon S3 to perform analytics at any scale. Export your DynamoDB table data to your data lake in Amazon Simple Storage Service (Amazon S3), and use other AWS services such as Amazon Athena, Amazon SageMaker, and AWS Lake Formation to analyze your data and extract actionable insights. No code-writing is required. DynamoDB Accelerator (DAX) August 11 – DAX now supports next-generation, memory-optimized Amazon EC2 R5 nodes for high-performance applications. R5 nodes are based on the AWS Nitro System and feature enhanced networking based on the Elastic Network Adapter. Memory-optimized R5 nodes offer memory size flexibility from 16–768 GiB. February 6 – Use the new CloudWatch metrics for DAX to gain more insights into your DAX clusters’ performance. Determine more easily whether you need to scale up your cluster because you are reaching peak utilization, or if you can scale down because your cache is underutilized. DynamoDB local May 21 – DynamoDB local adds support for empty values for non-key String and Binary attributes and 25-item transactions. DynamoDB local (the downloadable version of DynamoDB) has added support for empty values for non-key String and Binary attributes, up to 25 unique items in transactions, and 4 MB of data per transactional request. With DynamoDB local, you can develop and test applications in your local development environment without incurring any additional costs. Empty values for non-key String and Binary attributes June 1 – DynamoDB support for empty values for non-key String and Binary attributes in DynamoDB tables is now available in the AWS GovCloud (US) Regions. Empty value support gives you greater flexibility to use attributes for a broader set of use cases without having to transform such attributes before sending them to DynamoDB. List, Map, and Set data types also support empty String and Binary values. May 18 – DynamoDB now supports empty values for non-key String and Binary attributes in DynamoDB tables. Encryption November 6 – Encrypt your DynamoDB global tables by using your own encryption keys. Choosing a customer managed key for your global tables gives you full control over the key used for encrypting your DynamoDB data replicated using global tables. Customer managed keys also come with full AWS CloudTrail monitoring so that you can view every time the key was used or accessed. Global tables October 6 – DynamoDB global tables are now available in the Europe (Milan) and Europe (Stockholm) Regions. With global tables, you can give massively scaled, global applications local access to a DynamoDB table for fast read and write performance. You also can use global tables to replicate DynamoDB table data to additional AWS Regions for higher availability and disaster recovery. April 8 – DynamoDB global tables are now available in the China (Beijing) Region, operated by Sinnet, and the China (Ningxia) Region, operated by NWCD. With DynamoDB global tables, you can create fully replicated tables across Regions for disaster recovery and high availability of your DynamoDB tables. With this launch, you can now add a replica table in one AWS China Region to your existing DynamoDB table in the other AWS China Region. When you use DynamoDB global tables, you benefit from an enhanced 99.999% availability SLA at no additional cost. March 16 – You can now update your DynamoDB global tables from version 2017.11.29 to the latest version (2019.11.21) with a few clicks on the DynamoDB console. By upgrading the version of your global tables, you can easily increase the availability of your DynamoDB tables by extending your existing tables into additional AWS Regions, with no table rebuilds required. There is no additional cost for this update, and you benefit from improved replicated write efficiencies after you update to the latest version of global tables. February 6 – DynamoDB global tables are now available in the Asia Pacific (Mumbai), Canada (Central), Europe (Paris), and South America (São Paulo) Regions. NoSQL Workbench May 4 – NoSQL Workbench for DynamoDB adds support for Linux. NoSQL Workbench for DynamoDB is a client-side application that helps developers build scalable, high-performance data models, and simplifies query development and testing. NoSQL Workbench is available for Ubuntu 12.04, Fedora 21, Debian 8, and any newer versions of these Linux distributions, in addition to Windows and macOS. March 3 – NoSQL Workbench for DynamoDB is now generally available. On-demand capacity mode March 16 – DynamoDB on-demand capacity mode is now available in the Asia Pacific (Osaka-Local) Region. On-demand is a flexible capacity mode for DynamoDB that is capable of serving thousands of requests per second without requiring capacity planning. DynamoDB on-demand offers simple pay-per-request pricing for read and write requests, so you only pay for what you use, making it easy to balance cost and performance. PartiQL support November 23 – You can now use PartiQL, a SQL-compatible query language, to query, insert, update, and delete table data in DynamoDB. PartiQL makes it easier to interact with DynamoDB and run queries on the AWS Management Console. Training June 17 – Coursera offers a new digital course about building DynamoDB-friendly apps. AWS Training and Certification has launched “DynamoDB: Building NoSQL Database-Driven Applications,” a self-paced, digital course now available on Coursera. About the Author Craig Liebendorfer is a senior technical editor at Amazon Web Services. He also runs the @DynamoDB Twitter account. https://aws.amazon.com/blogs/database/2020-the-year-in-review-for-amazon-dynamodb/

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quangvublog · 5 years ago

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Hướng dẫn cài đặt HAProxy trên Ubuntu 18.04

HAProxy là một trong những giải pháp load balancing đáng tin cậy và có tốc độ rất xử lý rất nhanh – phù hợp cho các ứng dụng cần tính high availability cao dựa trên TCP và HTTP. Ngày nay, tối đa hóa thời gian xử lý ứng dụng website, cụ thể hơn là tăng tốc độ website cho những trang web có lưu lượng truy cập lớn là một vấn đề cực kỳ quan trọng. Khi đó, chúng ta sẽ cần phải thiết lập môi trường sử dụng nhiều server tăng cường tính khả dụng cao (high availability) cho website – có thể dễ dàng quản lý trong trường hợp một server bị lỗi.

Mô hình triển khai HAProxy làm Load Balancing

Trong bài viết này, mình sẽ hướng dẫn bạn cách cài đặt bộ Load Balancing HAProxy chạy trên môi trường Ubuntu, Debian. HAProxy sẽ giúp cân bằng tải và chuyển các requests tới các server khác nhau dựa trên địa chỉ IP và port.

Hướng dẫn cài đặt HAProxy

Trong bài viết này, mình giả sử mình đã có tổng cộng 4 server, trong đó 1 server được sử dụng để cài đặt HAProxy và 3 server còn lại được sử dụng để chạy ứng dụng web.

Thông tin web server Server 1: web1.example.com 192.168.1.1 Server 2: web2.example.com 192.168.1.2 Server 3: web3.example.com 192.168.1.3 HAProxy Server: HAProxy: haproxy 192.168.1.10

Bước 1. Cài đặt HAProxy

Trước tiên, bạn cần đăng nhập vào server dự định cài HAProxy đã, có địa chỉ IP là 192.168.1.10, sau đó chạy những câu lệnh dưới đây:

Để cài đặt phiên bản HAProxy mới nhất, sử dụng câu lệnh sau:

sudo apt-get update sudo apt-get install haproxy

Để cài đặt phiên bản HAProxy cố định nào đó, bạn cần phải add repository của phiên bản đó vào. Trong ví dụ này mình sẽ cài đặt HAProxy phiên bản 1.8

sudo add-apt-repository ppa:vbernat/haproxy-1.8 sudo apt-get update sudo apt-get install haproxy

Bước 2. Cấu hình HAProxy Load Balancing

Bây giờ chỉnh sửa file cấu hình mặc định của HAProxy có đường dẫn /etc/haproxy/haproxy.cfg

sudo vi /etc/haproxy/haproxy.cfg

Thông tin cấu hình mặc định

Trong file cấu hình này, bạn sẽ thấy có các thông tin cấu hình mặc định của HAProxy tương tự như hình phần code bên dưới.

Tạo HAProxy Listener

Bây giờ, bạn cần báo cho HAProxy biết nó nên lắng nghe kết nối đến ở đâu. Trong ví dụ này, mình sẽ khai báo HAProxy sẽ lắng nghe trên port 80 của con HAProxy server này luôn.

frontend Local_Server bind 192.168.1.10:80 mode http default_backend My_Web_Servers

Tạo Backend Web servers

Cấu hình HAProxy bên trên sẽ lắng nghe trên port 80. Bây giờ mình sẽ định nghĩa phần backend web server – nơi mà HAProxy sẽ gửi request tới.

backend nodes mode http balance roundrobin option forwardfor http-request set-header X-Forwarded-Port %[dst_port] http-request add-header X-Forwarded-Proto https if { ssl_fc } option httpchk HEAD / HTTP/1.1rnHost:localhost server web1.example.com 192.168.1.1:80 server web2.example.com 192.168.1.2:80 server web3.example.com 192.168.1.3:80

Kích hoạt Stats (tùy chọn)

Nếu bạn muốn cấu hình phần theo dõi thông tin thống kê, bạn có thể thêm thông tin cấu hình sau vào file cấu hình của HAProxy.

listen stats *:9200 stats enable stats hide-version stats refresh 30s stats show-node stats auth username:password stats uri /stats

Bước 3. File cấu hình HAProxy hoàn thiện

File cấu hình HAProxy sau khi tạo lập thêm sửa sẽ có dạng như sau:

global log /dev/log local0 log /dev/log local1 notice chroot /var/lib/haproxy stats socket /run/haproxy/admin.sock mode 660 level admin stats timeout 30s user haproxy group haproxy daemon # Default SSL material locations ca-base /etc/ssl/certs crt-base /etc/ssl/private # Default ciphers to use on SSL-enabled listening sockets. # For more information, see ciphers(1SSL). This list is from: # https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/ ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256::RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS ssl-default-bind-options no-sslv3 defaults log global mode http option httplog option dontlognull timeout connect 5000 timeout client 50000 timeout server 50000 errorfile 400 /etc/haproxy/errors/400.http errorfile 403 /etc/haproxy/errors/403.http errorfile 408 /etc/haproxy/errors/408.http errorfile 500 /etc/haproxy/errors/500.http errorfile 502 /etc/haproxy/errors/502.http errorfile 503 /etc/haproxy/errors/503.http errorfile 504 /etc/haproxy/errors/504.http frontend Local_Server bind 192.168.1.10:80 mode http default_backend My_Web_Servers backend My_Web_Servers mode http balance roundrobin option forwardfor http-request set-header X-Forwarded-Port %[dst_port] http-request add-header X-Forwarded-Proto https if { ssl_fc } option httpchk HEAD / HTTP/1.1rnHost:localhost server web1.example.com 192.168.1.1:80 server web2.example.com 192.168.1.2:80 server web3.example.com 192.168.1.3:80 listen stats *:9200 stats enable stats hide-version stats refresh 30s stats show-node stats auth username:password stats uri /stats

Bước 4. Restart server

Bây giờ bạn đã cập nhật thay đổi thông tin cấu hình HAProxy cần thiết rồi. Lúc này, bạn cần kiểm tra xác nhận xem thông tin cấu hình đã đúng chưa trước khi restart server bằng câu lệnh sau:

haproxy -c -f /etc/haproxy/haproxy.cfg

Nếu như thông tin câu lệnh trên hiển thị thông tin báo valid, nghĩa là file cấu hình của bạn không có vấn đề gì cả. Bây giờ bạn chỉ cần restart lại server thôi.

sudo service haproxy restart

Bước 5. Xác nhận thông tin cấu hình HAProxy

Lúc này, bạn có thể truy cập vào trang thống kê có địa chỉ là 192.168.1.10:9200 mà mình đã khai báo Stats trong file config bên trên. Nếu như thông tin cả 3 server đều xanh lè nghĩa là cả 3 server ok, còn lại màu đỏ nghĩa là check server bị down.

Ví dụ trang thông tin thống kê sẽ có dạng như sau:

Bảng thông tin thống kê load balancing server trong HAProxy

Kết luận

Qua bài viết này, bạn đã có thể cài đặt thành công bộ Load Balancing HAProxy trên server Ubuntu rồi đấy. Tuy nhiên, đây mới chỉ là demo thôi, ngoài ra, bạn còn cần phải biết thêm về các thông số cấu hình HAProxy như healthcheck, restart, downtime, thuật toán load balancing,… Đặc biệt hơn, trong trường hợp bạn hoạt động trong lĩnh vực thiết kế website, ngay từ bước ban đầu, bạn cần phải hiểu rõ về sản phẩm mà bạn sẽ thiết kế, nó có phù hợp để load balancing không hay chỉ chạy trên single server mà thôi. Như vậy, sử dụng HAProxy làm bộ cân bằng tải cho website sẽ trở nên hữu ích và đơn giản hơn nhiều đấy.

The post Hướng dẫn cài đặt HAProxy trên Ubuntu 18.04 appeared first on Quang Vũ Blog.

source https://blog.vu-review.com/cai-dat-haproxy-tren-ubuntu-18-04.html

#quangvublog

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sololinuxes · 5 years ago

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Instalar Postal Mail Server en Ubuntu 18.04 / 20.04

Instalar Postal Mail Server en Ubuntu 18.04 / 20.04. Tal vez no lo conozcas, pero Postal Mail Server es un servidor de correo muy completo, que cuenta con todas las funciones necesarias para manejar las cuentas de mail tanto de sitios web como de servidores específicos para ello. Seguro que conoces Sendgrid, Mailgun o Postmark, con Postal Mail Server puedes lograr algo similar. El servidor del que hoy hablamos, nos proporciona una API HTTP que permite integrarlo con otros servicios y enviar correos electrónicos desde diferentes sitios o aplicaciones web. Destacamos su alta detección de spam y virus. Instalar y configurar Postal Mail Server es una tarea sencilla si lo comparamos con otros alternativas. El único requisito que debes cumplir es que los registros del dominio principal apunten de manera efectiva al servidor antes de comenzar su instalación.

Instalar Postal Mail Server

Instalar Postal Mail Server en Ubuntu

Comenzamos actualizando el sistema para continuar con la instalación de MariaDB. sudo apt update sudo apt dist-upgrade Instalar MariaDB sudo apt install mariadb-server libmysqlclient-dev Iniciamos y habilitamos MariaDB. sudo systemctl start mariadb.service sudo systemctl enable mariadb.service Ahora aseguramos el servidor de base de datos. sudo mysql_secure_installation Una manera efectiva de proteger MariaDB es siguiendo los pasos que te indico a continuación. Enter current password for root (enter for none): Pulsa Enter Set root password? : Y New password: Introduce el password Re-enter new password: Repite el password Remove anonymous users? : Y Disallow root login remotely? : Y Remove test database and access to it? : Y Reload privilege tables now? : Y Reiniciamos MariaDB. sudo systemctl restart mariadb.service Crear una base de datos Creamos una base de datos en blanco para Postal Mail Server, te pedira la password que insertaste en el paso anterior. sudo mysql -u root -p La nueva base de datos se llamará "postal" (como ejemplo). CREATE DATABASE postal CHARSET utf8mb4 COLLATE utf8mb4_unicode_ci; Ahora creamos el usuario "postaluser" y una nueva contraseña para el. CREATE USER 'postaluser'@'localhost' IDENTIFIED BY 'tu_password'; Le damos permisos de acceso al nuevo usuario. GRANT ALL ON postal.* TO 'postaluser'@'localhost' WITH GRANT OPTION; Solo nos falta guardar y salir de la consola de MariaDB. FLUSH PRIVILEGES; EXIT; Instalar Ruby, Erlang y RabbitMQ Los paquetes Ruby, Erlang y RabbitMQ (necesarios), no están disponibles en los repositorios oficiales de Ubuntu, los instalamos manualmente. Para instalar Ruby sigue los pasos indicados. sudo apt-get install software-properties-common sudo apt-add-repository ppa:brightbox/ruby-ng sudo apt update sudo apt install ruby2.3 ruby2.3-dev build-essential Continuamos con Erlang. wget -O- https://packages.erlang-solutions.com/ubuntu/erlang_solutions.asc | sudo apt-key add - # Cuidado con el siguiente paso, si no usas Ubuntu Bionic debes modificar por tu version echo "deb https://packages.erlang-solutions.com/ubuntu bionic contrib" | sudo tee /etc/apt/sources.list.d/erlang.list sudo apt-get update sudo apt-get install erlang Terminamos con la instalación de RabbitMQ. sudo sh -c 'echo "deb https://dl.bintray.com/rabbitmq/debian $(lsb_release -sc) main" >> /etc/apt/sources.list.d/rabbitmq.list' wget -O- https://dl.bintray.com/rabbitmq/Keys/rabbitmq-release-signing-key.asc | sudo apt-key add - wget -O- https://www.rabbitmq.com/rabbitmq-release-signing-key.asc | sudo apt-key add - sudo apt update sudo apt install rabbitmq-server Iniciamos y habilitamos RabbitMQ. sudo systemctl enable rabbitmq-server sudo systemctl start rabbitmq-server Este paso es opcional, pero si quieres administrar RabbitMQ vía web también es posible con el siguiente comando. sudo rabbitmq-plugins enable rabbitmq_management Puedes acceder desde la siguiente url: http://dominio-o-ip:15672 El usuario y password de acceso es "guest", pero ojo... solo funciona si trabajas en local. Para concluir la configuración de RabbitMQ agregamos nuestro usuario (postal) y la pass. sudo rabbitmqctl add_vhost /postal sudo rabbitmqctl add_user postal tu-password sudo rabbitmqctl set_permissions -p /postal postal ".*" ".*" ".*" Instalar Nodejs en Ubuntu Para un funcionamiento perfecto del servidor de correo, es recomendable instalar Nodejs. sudo apt install curl curl -sL https://deb.nodesource.com/setup_10.x | sudo bash sudo apt-get install nodejs Instalar Postal Mail Server Por fin llegamos a los pasos finales, solo nos falta instalar y configurar el servidor Postal Mail Server. Creamos la cuenta del servicio y damos permiso a Ruby para que pueda escuchar. sudo useradd -r -m -d /opt/postal -s /bin/bash postal sudo setcap 'cap_net_bind_service=+ep' /usr/bin/ruby2.3 Necesitamos unos paquetes adicionales. sudo gem install bundler sudo gem install procodile sudo gem install nokogiri -v '1.7.2' Creamos el directorio principal de Postal Mail Server, descargamos la última versión, la extraemos y le damos acceso a nuestro usuario. sudo mkdir -p /opt/postal/app sudo wget https://postal.atech.media/packages/stable/latest.tgz sudo tar xvf latest.tgz -C /opt/postal/app sudo chown -R postal:postal /opt/postal sudo ln -s /opt/postal/app/bin/postal /usr/bin/postal Iniciamos los archivos de configuración. sudo postal bundle /opt/postal/vendor/bundle sudo postal initialize-config Vamos a editar el archivo de configuración con nuestros datos reales. sudo nano /opt/postal/config/postal.yml Asegurate de que los datos sean validos y que el dominio apunte al servidor o vps. web: # The host that the management interface will be available on host: postal.midominio.com # The protocol that requests to the management interface should happen on protocol: https fast_server: # This can be enabled to enable click & open tracking on emails. It is disabled by # default as it requires a separate static IP address on your server. enabled: false bind_address: general: # This can be changed to allow messages to be sent from multiple IP addresses use_ip_pools: false main_db: # Specify the connection details for your MySQL database host: 127.0.0.1 username: postaluser password: password base de datos database: postal message_db: # Specify the connection details for your MySQL server that will be house the # message databases for mail servers. host: 127.0.0.1 username: postaluser password: password base de datos prefix: postal rabbitmq: # Specify the connection details for your RabbitMQ server. host: 127.0.0.1 username: postal password: password de rabbitmq vhost: /postal dns: Guarda el archivo y cierra el editor. Ahora inicializamos el servicio y creamos una cuenta de usuario. sudo postal initialize sudo postal make-user Arrancamos postal y verificamos el status del servicio. sudo -u postal postal start sudo -u postal postal status ejemplo de salida... Procodile Version 1.0.26 Application Root /opt/postal/app Supervisor PID 18589 Started 2020-04-13 18:25:07 -0500 || web || Quantity 1 || Command bundle exec puma -C config/puma.rb || Respawning 5 every 3600 seconds || Restart mode usr1 || Log path none specified || Address/Port none || => web.1 Running 18:25 pid:18589 respawns:0 port:- tag:- Ya tenemos listo nuestro servidor Postal Mail Server, si quieres manejarlo a través de su portal gráfico necesitamos un servidor. Nosotros instalamos Nginx que es rápido y ligero. Instalar Nginx La instalación de Nginx es fácil, tan solo debes seguir los pasos indicados. sudo apt install nginx sudo cp /opt/postal/app/resource/nginx.cfg /etc/nginx/sites-available/default Creamos un certificado SSL autofirmado. sudo mkdir /etc/nginx/ssl/ sudo openssl req -x509 -newkey rsa:4096 -keyout /etc/nginx/ssl/postal.key -out /etc/nginx/ssl/postal.cert -days 365 -nodes Introduce tus datos válidos. Generating a RSA private key ……………………………++++ …………++++ writing new private key to '/etc/nginx/ssl/postal.key' You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. Country Name (2 letter code) :ES State or Province Name (full name) :HU Locality Name (eg, city) :Monzon Organization Name (eg, company) : Organizational Unit Name (eg, section) : Common Name (e.g. server FQDN or YOUR name) :postal.midominio.com Email Address : Bien... para concluir editas el archivo de configuración de Nginx e insertas tu dominio. sudo nano /etc/nginx/sites-available/default ejemplo... server { listen :80; listen 0.0.0.0:80; server_name postal.midominio.com; return 301 https://$host$request_uri; } Reiniciamos el servidor Nginx. sudo systemctl reload nginx Accedemos a Postal Mail Server Acceder al panel del servidor es tan simple como introducir el dominio que configuramos anteriormente. https://midominio.com https://panel.midominio.com

Login Postal Media Server Canales de Telegram: Canal SoloLinux – Canal SoloWordpress Espero que este articulo te sea de utilidad, puedes ayudarnos a mantener el servidor con una donación (paypal), o también colaborar con el simple gesto de compartir nuestros artículos en tu sitio web, blog, foro o redes sociales. Read the full article

#administrarRabbitMQ #APIHTTP #deteccióndespam #Erlang #InstalarNodejs #InstalarPostalMailServer #Mailgun #PostalMailServer #Postmark #RabbitMQ #ruby #Sendgrid #servidordecorreo #servidorPostalMailServer

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siva3155 · 6 years ago

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300+ TOP PUPPET Interview Questions and Answers

PUPPET Interview Questions for freshers and experienced :-

1. Why the puppet is important? Puppet develops and increases the social, emotional and communication skills of the children. 2. What are the works and uses of puppets? Puppet defines to software and configuration your system requires and has the ability to maintain an initial set up. Puppet is a powerful configuration management tool to help system administrators and DevOps to work smart, fast, automate the configuration, provisioning, and management of a server. 3. Why puppet is used by an organization? Puppet is used to fulfill cloud infrastructure needs, data centers and to maintain the growth of phenomenal. It is very flexible to configure with the right machine. Puppet helps an organization to imagine all machine properties and infrastructure. 4. What are the functions of Puppet? Ruby is the base development language of puppet and supports two types of functions are Statements and Rvalue. There are three types of Inbuilt functions File function Include function Defined function 5. What is Reductive labs? Puppet labs are to target the reAnswer:framing of the automation problem of the server. 6. How is puppet useful for developers? Puppet is a reliable, fast, easy and automated infrastructure to add more servers and the new version of the software in a single click. You can fully focus on productive work because it is free from repetitive tasks. 7. What is the language of the puppet? Puppet has its language known as eponymous puppet available in open and commercial versions. It uses a declarative, modelAnswer:based approach for IT automation to define infrastructure as code and configuration with programs. 8. Does puppet has its programing language, why? Yes, because it is very easy and clear to understand quick by developers 9. What puppet will teach you? Puppet will teach you how to write the code to configure automate server, to use preAnswer:built and create modules, how to use resources, facts, nodes, classes and manifests, etc. 10. What are the effects of puppet on children? There are many surprising and amazing effects of puppets such as it encourages and improves the imagination, creativity, motorcycle and emotional health of the children to express inner feelings. The main thing is that you can communicate and give a valuable message to your children funnily and unusually and also to get rid of your child from the shyness of reading, pronouncing and speaking loud in front of everybody.

PUPPET Interview Questions 11. How to install a puppet master? First update your system and install the puppet labsAnswer:release repository into Ubuntu. Always install the latest and updated version of the puppet “puppetmasterAnswer:passenger” package. 12. What is configuration management? Configurations management handles the changes systematically to confirm the system design and built state. It also maintains the system integrity and accurate historical records of system state for audit purposes and management of the project. 13. How do puppet slaves and masters communicate? First slave sends the request for the master certificate to sign in and then master approves the request and sends it to slave and slave certificate too. Now the slave will approve the request. After completing all the formalities date is exchanged very securely between two parties. 14. How DevOps puppet tool works? Facts details of the operating system, the IP address of the virtual machine or not, it is sent to the puppet master by the puppet slave. Then the fact details are checked by the puppet master to decide how the slave machine will configure and wellAnswer:defined document to describe the state of every resource. The message is shown on the dashboard after completing the configuration. 15. Describe puppet manifests and puppet module? Puppet manifests – Are puppet code and use the. pp extension of filenames. For example, write a manifest in the puppet master to create a file and install apache to puppet slaves that are connected to the puppet master. Puppet module – It is a unique collection of data and manifests like files, facts, templates with a special directory structure. 16. What are the main sources of the puppet catalog for configuration? Agent provided data, Puppet manifests, external data. 17. Is 2.7.6 puppet run on the window and server? Yes, it will run to ensure future compatibility. Puppet can on servers in an organization because there are a lot of similarities in the operating system. 18. How can we manage workstation with a puppet? BY using “puppet tool” for managing workstations, desktops, laptops. 19. What is Node? It is a block of puppet code included in matching nodes catalogs which allow assigning configurations to specific nodes. 20 . What are facts, name the facts puppet can access? System information is facts which are preAnswer:set variables to use anywhere in manifests. Factor builtAnswer:in core facts, custom and external facts. 21. Where are blocks of Puppet code stored? Blocks are known as the classes of puppet code and are stored on modules to use later and can be applied only by a name. 22. Which command puppet apply? Puppet apply /etc/puppet labs/code/environments/production/manifests/site.pp 23. Name the two version of puppet? Define Open source puppet – It manages the configuration of UnixAnswer:like, Microsoft windows system. It is a free version to modify and customize. Puppet enterprise – Ability to manage all the IT applications, infrastructure and provide a robust based solution for automating anything. 24. What are community tools to support the functions of puppets? These are Git, Jenkins and DevOps tools to support integration and features in puppet. 25. Name the problem while using puppet? Puppet distortion issue Blink issue Wrap issue Movement issue Face issue Walking issue 26. What are the two components of the puppet? Puppet language and Puppet platform 27. How to check the requests of Certificates from the puppet agent to puppet master? puppet cert list Puppet cert sign Puppet cert sign all 28. Where and why we use etckeeperAnswer:commitAnswer:post and etckeeperAnswer:commitAnswer:pre? It is used on a puppet agent. etckeeperAnswer:commitAnswer:post is used to define scripts and command after pushing configuration in the configuration file. etckeeperAnswer:commitAnswer:pre is used to define scripts and command before pushing configuration in the configuration file. 29. What is runinterval? A request by default is sent to the puppet master after a periodic time by the puppet agent. 30. What does puppet kick allow? It allows triggering puppet agent from puppet master. 31. What is orchestration framework and what does it do? It is an MCollective and runs on thousands of servers using writing and plugins. 32. What is this “$operatingsystem” how it is set? This is variables and set by factor. 33. What does puppet follow? ClientAnswer:server architecture. Client as “agent” and server as “master”. 34. What are the challenges handled by configuration by management? Identify the component to be changed when requires, wrong identification may replace by the right component implementation. After changes all nodes are redone. The previous version is again implemented if necessary. 35. What are the advantages of a puppet? Develops imagination power, verbal expression, voice modulation, confidence, teamwork, dramatic expression, listening skills. 36. What is used for separating data from puppet code and why? Hiera. For storing the data in keyAnswer:value pairs. 37. Who approves puppet code and why? Puppet parser and puppet code check the syntax errors. 38. What we use to change and view the puppet settings? By puppet config. 39. What puppet for automating configuration management? Python. 40. What reduces the time to automation to get started with DevOps? Puppet Bolt. 41. How to uninstalling modules in Puppet? Use the puppet module uninstall command to remove an installed module. 42. What are the core commands of Puppet? Core commands of Puppet are: Pupper Agent Pupper Server Puppet Apply Puppet Cert Puppet Module Puppet Resource Puppet Config Puppet Parser Puppet Help Puppet Man 43. What is Puppet agent? Puppet agent manages systems, with the help of a Puppet master. It requests a configuration catalog from a Puppet master server, then ensures that all resources in that catalog are in their desired state. 44. What is Puppet Server? Puppet Server compiles configurations for any number of Puppet agents, using Puppet code and various other data sources. It provides the same services as the classic Puppet master application, and more. 45. What is Puppet apply? Puppet apply manages systems without needing to contact a Puppet master server. It compiles its own configuration catalog, using Puppet modules and various other data sources, then immediately applies the catalog. 46. What is Puppet cert? Puppet cert helps manage Puppet’s built-in certificate authority (CA). It runs on the same server as the Puppet master application. You can use it to sign and revoke agent certificates. 47. What is Puppet module? Puppet module is a multi-purpose tool for working with Puppet modules. It can install and upgrade new modules from the Puppet Forge, help generate new modules, and package modules for public release. 48. What is Puppet resource? Puppet resource lets you interactively inspect and manipulate resources on a system. It can work with any resource type Puppet knows about. 49. What is Puppet config? Puppet config lets you view and change Puppet’s settings. 50. What is Puppet parser? Puppet parser lets you validate Puppet code to make sure it contains no syntax errors. It can be a useful part of your continuous integration toolchain. PUPPET Questions and Answers Pdf Download Read the full article

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zockainternet · 2 years ago

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Nesse passo a passo estarei mostrando um exemplo de como integrar um chat bot GPT-3 que é uma API da OPENAI, que criou o ChatGPT. Integrando Chat GPT com WhatsApp Para fazer esse procedimento estou usando um servidor com Debian (mas já testei o funcionamento com ubuntu 18...). A integração está sendo feita com: node.js venom-bot api da openai OBS IMPORTANTE: Nos testes que realizei, criei um servidor apenas para essa finalidade, se você não tiver conhecimento técnico suficiente para entender o que está sendo feito, sugiro que instale em uma maquina virtual. Neste exemplo, estou utilizando usuário "root" para fazer todo procedimento. Instalando o node.js e atualizando o servidor Vamos começar atualizando o sistema e instalando node.js no servidor: sudo apt-get update -y && apt-get upgrade -y curl -fsSL https://deb.nodesource.com/setup_current.x | sudo -E bash - sudo apt-get update sudo apt install nodejs -y Depois disso, vamos instalar as dependências no servidor: sudo apt-get update sudo apt-get install -y gconf-service libasound2 libatk1.0-0 libatk-bridge2.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget libgbm-dev Após a instalações dessas bibliotecas, considere reiniciar o servidor. Prosseguindo, agora vamos instalar o venom-bot que será responsavel por conectar o chatbot ao WhatsApp: cd /root mkdir chatbot-whatsapp cd chatbot-whatsapp touch index.js npm i venom-bot No arquivo index, você vai colocar esse código: const venom = require('venom-bot'); venom .create() .then((client) => start(client)); function start(client) client.onMessage((message) => message.body === 'Oi') client .sendText(message.from, 'Estou pronto!') .then((result) => console.log('Result: ', result); //retorna um objeto de successo ) .catch((erro) => console.error('Erro ao enviar mensagem: ', erro); //return um objeto de erro ); ); Agora teste o funcionamento e veja se o chatbot está funcionando digitando esse comando abaixo no terminal do servidor: node index.js Se estiver tudo certo, será exibido um QRCode para você autorizar o navegador dessa aplicação a usar o seu WhatsApp [caption id="attachment_1011" align="alignnone" width="300"] Exemplo de QRCode do chatbot[/caption] Depois disso, poderá testar digitando um "Olá" ou "Oi" para o WhatsApp conectado ao chatbot. E ele deverá responder pra você "Estou pronto!" [caption id="attachment_1012" align="alignnone" width="300"] Exemplo de resposta do chatbot[/caption] Se até essa etapa está tudo ok, podemos prosseguir. Instalando a API do OPenAI e integrando com WhatsApp Agora vamos para integração com a api do openai, vamos fazer a integração do gpt-3 com o WhatsApp Para isso, vamos instalar a api do openai: cd /root/chatbot-whatsapp npm i openai Deverá criar um arquivo chamado ".env" com suas credenciais de acesso do openai (organização e api de acesso). OBS IMPORTANTE: é necessário se cadastrar no site da openai.com Depois disso poderá adquirir as informações nos seguintes links: OPENAI_API_KEY=https://platform.openai.com/account/api-keys ORGANIZATION_ID=https://platform.openai.com/account/org-settings Já o "PHONE_NUMBER=" é o numero do WhatsApp que você vai colocar no qrcode. touch .env echo "OPENAI_API_KEY=COLEAQUISUAAPI" >> /root/chatbot-whatsapp/.env echo "ORGANIZATION_ID=COLEAQUISUAORGANIZACAO" >> /root/chatbot-whatsapp/.env echo "[email protected]" >> /root/chatbot-whatsapp/.env Agora você pode substituir o có

digo do arquivo index, ou criar um novo arquivo para testar, neste exemplo estou criando um novo arquivo: touch gpt.js E deverá colocar o seguinte código nele: const venom = require('venom-bot'); const dotenv = require('dotenv'); const Configuration, OpenAIApi = require("openai"); dotenv.config(); venom.create( session: 'bot-whatsapp', multidevice: true ) .then((client) => start(client)) .catch((error) => console.log(error); ); const configuration = new Configuration( organization: process.env.ORGANIZATION_ID, apiKey: process.env.OPENAI_API_KEY, ); const openai = new OpenAIApi(configuration); const getGPT3Response = async (clientText) => const options = model: "text-davinci-003", prompt: clientText, temperature: 1, max_tokens: 4000 try const response = await openai.createCompletion(options) let botResponse = "" response.data.choices.forEach(( text ) => botResponse += text ) return `Chat GPT ??\n\n $botResponse.trim()` catch (e) return `? OpenAI Response Error: $e.response.data.error.message` const commands = (client, message) => const iaCommands = davinci3: "/bot", let firstWord = message.text.substring(0, message.text.indexOf(" ")); switch (firstWord) case iaCommands.davinci3: const question = message.text.substring(message.text.indexOf(" ")); getGPT3Response(question).then((response) => /* * Faremos uma validação no message.from * para caso a gente envie um comando * a response não seja enviada para * nosso próprio número e sim para * a pessoa ou grupo para o qual eu enviei */ client.sendText(message.from === process.env.PHONE_NUMBER ? message.to : message.from, response) ) break; async function start(client) client.onAnyMessage((message) => commands(client, message)); Agora teste o funcionamento e veja se a integração está funcionando digitando esse comando abaixo no terminal do servidor: node gpt.js Se estiver tudo certo, será exibido um QRCode para você autorizar o navegador dessa aplicação a usar o seu WhatsApp Depois disso, poderá testar digitando qualquer frase ou pergunta iniciando por "/bot" Então o bot vai responder você com a inteligência artificial configurada no código do arquivo gpt.js [caption id="attachment_1014" align="alignnone" width="300"] Resposta do chat gpt-3[/caption] Bom é isso, espero que esse passo a passo ajude você. Reiterando que utilizei um servidor somente para essa finalidade, ou seja, para fins de testes. Referencias para publicação desse passo a passo: https://github.com/victorharry/zap-gpt https://platform.openai.com https://github.com/orkestral/venom

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computingpostcom · 3 years ago

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In our recent article we captured installation steps for Xen Orchestra (XO) on an Ubuntu / Debian server by building the packages from source. XO is software built with a server and clients, such as the web client xo-web, but also a CLI capable client, called xo-cli. There is an alternative installation method which involves deployment with Xen Orchestra Virtual Appliance (XOA). This is the installation that will be performed in this guide. XOA is a virtual machine with Xen Orchestra already installed, thus intended to work out-of-the-box. The only dependency is a running Xen/XCP-ng hypervisor host with network and storage configurations. There is a bash script to be executed on the hypervisor shell which will download VM appliance and create a new Virtual Machine from it. Import XOA on XenServer | XCP-ng Server Start a new SSH session to your XenServer host and run the commands below. ### Using curl ### [18:18 xcp-node-01 ~]# bash -c "$(curl -sS https://xoa.io/deploy)" ### Using wget ### [18:18 xcp-node-01 ~]# bash -c "$(wget -qO- https://xoa.io/deploy)" If you are using an old XenServer version, you may encounter SSL connection issues. This can bypassed by using the unsecure connection instead: ### Using curl ### [18:18 xcp-node-01 ~]# bash -c "$(curl -sS http://xoa.io/deploy)" ### Using wget ### [18:18 xcp-node-01 ~]# bash -c "$(wget -qO- http://xoa.io/deploy)" If you’re using DHCP server on the default network, agree to proceed with the installation: Welcome to the XOA auto-deploy script! Network settings: IP address? [dhcp] For Static IP address provide all required IP related information such as netmask, gateway, and DNS server. With the DHCP option, VM importation should start thereafter: Your XOA will be started using DHCP Importing XOA VM... Booting XOA VM... Waiting for your XOA to be ready… Your XOA is ready on https://192.168.20.24/ Default UI credentials: [email protected]/admin Default console credentials: xoa/xoa VM UUID: 84f59294-a20c-3658-db12-6ed7152c6e08 If you access Xen cluster you should see VM importation in progress. When done a VM named “XOA” should be visible. You can access the shell with the IP address assigned to the instance. The default logins were printed out during XOA importation Your XOA is ready on https://192.168.20.24/ Default UI credentials: [email protected]/admin Default console credentials: xoa/xoa Use the given username and password to login to XO web console. Navigate to “Settings” > “Users“ section to update admin password for better security. Select admin user and click “edit” under Password section to update user’s password. Shell access to the appliance: $ ssh [email protected] Linux xoa 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64 __ __ ____ _ _ \ \ / / / __ \ | | | | \ V / ___ _ __ | | | |_ __ ___| |__ ___ ___| |_ _ __ __ _ > < / _ \ '_ \ | | | | '__/ __| '_ \ / _ \/ __| __| '__/ _` | / . \ __/ | | | | |__| | | | (__| | | | __/\__ \ |_| | | (_| | /_/ \_\___|_| |_| \____/|_| \___|_| |_|\___||___/\__|_| \__,_| Welcome to XOA Unified Edition, with Pro Support. * Restart XO: sudo systemctl restart xo-server.service * Display status: sudo systemctl status xo-server.service * Display logs: sudo journalctl -u xo-server.service * Register your XOA: sudo xoa-updater --register * Update your XOA: sudo xoa-updater --upgrade OFFICIAL XOA DOCUMENTATION HERE: https://xen-orchestra.com/docs/xoa.html Support available at https://xen-orchestra.com/#!/member/support In case of issues, use `xoa check` for a quick health check. Build number: 21.01.02 Based on Debian GNU/Linux 10 (Stable) 64bits in PVHVM mode Service xo-server should be in a running state: $ systemctl status xo-server.service ● xo-server.service - XO Server Loaded: loaded (/etc/systemd/system/xo-server.service; enabled; vendor preset: enabled)

Active: active (running) since Tue 2021-04-20 11:25:13 EDT; 19h ago Main PID: 504 (node) Tasks: 18 (limit: 2331) Memory: 144.9M CGroup: /system.slice/xo-server.service ├─ 504 node /usr/local/bin/xo-server └─2285 /usr/local/bin/node /usr/local/lib/node_modules/xo-server/node_modules/jest-worker/build/workers/processChild.js Check and update if updates are available. But registration is required for updates. sudo xoa-updater --register sudo xoa-updater --upgrade Add XenServer | XCP-ng Server Add the Xen|XCP-ng server by going to “Home” > “Add server“ Input the server label, IP Address, Username and Password used to login. Confirm connection is successful. The status should automatically turn to “Enabled“ From the console you can get your Xen Cluster details – Pools, Hosts, VMs and usage capacity.

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holytheoristtastemaker · 5 years ago

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Running your web server without SSL can create the impression that your content is not secure. Chrome shows a nasty "Not Secure" note next to your domain. It sucks. But it only takes 30 minutes of your time to start serving via HTTPs on a Node/Express server. Just follow the instructions in this SSL tutorial. You can follow me on Twitter to get updates on my free coding tutorials, or just check out this page with my coding books on JavaScript and CSS if you need a copy. SSL Connections via HTTPS Protocol SSL encrypts outgoing and incoming data between client and server. This helps provide increased security for data such as credit card numbers, emails and passwords. With HTTP protocol, the data is sent as-is. (Perhaps, it may have been compressed, but not really encrypted by an encryption algorithm.) This is important because unless you implement SSL the data sent to the server is not secure. Also Chrome and other browsers will display "Not Secure" message next to your domain name which might prevent users from buying your products. Luckily for us Node already has a module called https: // Import the https module let https = require("https"); // Choose port based on whether we're on loaclhost or production server const port = process.env.node_env === 'production' ? 443 : 3000; // Link to generated certificate files // (replace example.com with your own domain name) // (see how to generate them later in this tutorial) const key = `/etc/letsencrypt/live/example.com/privkey.pem`; const cert = `/etc/letsencrypt/live/example.com/fullchain.pem`; const options = { key: fs.readFileSync(key), cert: fs.readFileSync(cert) }; https.createServer(options, function(request, response) { /* Your SSL server is running */ /* Of course here... you would write your API implementation */ }).listen(port); But if you are running on Express, you don't even have to do that. Express will simply take an array of cert files pointing to the certificates we will generate later in this tutorial. Here is an Express.js example: // Import packages const express = require('express'); const https = require('https'); const port = 443; // Create Express app const app = express(); let site = 'example.com'; let port = 443; // Link to generated certificate files // (replace example.com with your own domain name) // (see how to generate them later in this tutorial) const certificates = { "key": fs.readFileSync(`/etc/letsencrypt/live/${site}/privkey.pem`), "cert": fs.readFileSync(`/etc/letsencrypt/live/${site}/fullchain.pem`) }; const server = event => { console.log(`${site} is listening on port ${port}!`); }; // Launch Node server with Express "app" https.createServer(certificates, app).listen(port, server); Remember that every time you add a new require statement to your app you need to also actually install the package associated with it: npm install https --save The --save directive adds a package to your package.json file. We can now use this https module to start our server. But that's not enough. The most important part is setting up the SSL certificate so that the server does a handshake with the certificate authority before serving content and a lock icon appears: Lock icon on infinite sunset - my secure PWA app.We'll use LetsEncrypt - it's free and easy to set up. Unlike openssl, LetsEncrypt generates production-quality SSL certificates that should be enough for everything. Let's Encrypt Let's go over setting up free SSL certificates on Linux-based operating systems. The preferred OS for most web host providers. However, the commands described in this section are the same in Terminal and bash.exe on Windows. To use LetsEncrypt we must update packages, install git (if you haven't already,) clone and install the letsencrypt repository and execute a few bash commands. For no reason in particular I'll use bash.exe on Windows 10, but you can use Terminal on OSX. First, I will launch bash.exe from the Start menu. The command line window opens: Let's login to your web host as root user using the ssh command. Just replace XX.XXX.XX.XXX with the static IP address where you host your website. You will be asked to enter your root user password (unless you have passwordless login set up but that's outside of this tutorial's scope.) We should now be logged into the web host. See server log below: You will be greeted by a screen similar to this. (I'm running Ubuntu 18.) To install certbot we need to update the packages first. This is because certbot developers continue applying improvements and your Ubuntu server may not have the latest version on initial server installation. Run sudo add-apt-repository ppa:certbot/certbot command to add certbot repository to your Ubuntu server: Just press Enter and the latest packages will be added to the mirror files which is a list of links pointing to the latest version of the packages. Now run the sudo apt-get update to actually download the updated packages: This step is important - it will update your certbot packages to the latest version. If you find yourself on CentOS or Debian you can do the same thing as follows: On CentOS run sudo yum update && sudo yum upgrade. On Debian run sudo apt update && sudo apt upgrade. Linux && symbols will cause your packages to be updated followed by being upgraded without having to execute each command separately. Installing certbot Run apt-get install certbot to install the certbot package. We're already logged in as root so there is no need to use the sudo command (otherwise also prepend sudo.) Press Y and hit Enter. Or run the same command with -y or --yes flag. The installation log should roll on the screen and after that we should be good to go! Installing git In order to install letsencrypt we need to clone the latest version from git. But in order to do that we first need to make sure we have git installed on our system: The installation process will scroll on your screen... We can now use git. If you're in the Terminal chances are you already have the packaget installers apt or apt-get. Keep in mind in this example we're in bash.exe on Windows 10. If sudo or apt-get are not working there is a work-around. First...if you are hosting your server remotely use ssh in bash.exe to log into your server and all linux commands will become available over there. Second if you are developing on localhost and don't need to log into your remote host, you must install Ubuntu for Windows in addition to bash.exe. Once installed you should have apt-get and other common Linux commands in your Windows 10 bash. Cloning letsencrypt Now we're ready to clone the latest version of letsencrypt to our server. This is accomplished by running the following Linux command: git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt Just copy and paste it into your Terminal or bash! You might also want to precede it with sudo as shown in the following example. Cloning begins... Create SSL Certificate Finally, we're ready to create the SSL certificate that will ultimately enable us to serve files via https instead of http. Following previous steps type this command to navigate to newly created letsencrypt directory: cd /opt/letsencrypt You will navigate to the folder where textbf{letsencrypt} was just installed. cd stands for Change Directory on Linux-based OS. After that run the following command... sudo -H ./letsencrypt-auto certonly --standalone -d A.com -d www.A.com (Just don't forget to replace A.com with your domain name.) Initiate creation of the SSL certificate for example.com (Again, make sure it matches your domain name instead of example.) After this you will see letsencrypt-auto command generating the needed certificate files with certbot and automatically creating http challenges. At this stage you might be asked several questions. I'm not going to include them here to save space. Just enter your email address when asked and a few other things. Choose the (A)gree or (Y)es option every time you're asked (required.) Let's take a look at what actually happened once the certificate was generated. The important parts are highlighted: LetsEncrypt created and verified http challenges (this is needed in order to verify that the domain name belongs to you, but in this instance this is done for us automatically.) It also generated two pem keys for our example.com domain. Congratulations on your secure SSL domain! At this point your domain name is https-enabled. Assuming you passed the two keys to your Node or Express as shown in the very beginning of this tutorial. Just restart the server and you should see the secure lock in the address bar. But there is one more thing! Let's check where the files live and get familiar with the directory where the keys were actually generated: The certificate files were created in /etc/letsencrypt/live directory. Let's output the contents of the live directory. This is where letsencrypt saved all certificate keys for all domain names on the server under their respective folder names. Run the ls command to list the contents of the directory. You will see that our site example.com now has a folder (should show your domain name.) In the example.com directory you will find several pem files generated by letsencrypt. We only need cert.pem and privkey.pem. We're ready to start using the certificate. All we need to do is add some new code to the existing index.js file. ACME Challenge If you completed the steps to install the SSL certificate in the previous section you don't need to do this next step. But in some cases ACME challenges are required by some server configurations in order to verify that you are the owner of the domain name. Run certbot certonly --manual or certbot certonly --manual (note this is actually double dash as shown below, not one dash.) If you're hosting multiple domains, you can use the same certificate, so just specify as many domain names as you need separated by a space or comma. In this case we're simply adding example site awesomesite.com Enter your domain name (without www.) and press Enter. Type Y and press Enter to agree and proceed. To verify we own the domain name, we need to manually create the file named afBX9EXvQqUqzFooe02-22EfJ5TzcniFw7CvqlaMXCA -- just the part before the dot (.) highlighted in yellow in the screenshot above. Place this file into your .well-known/acme-challenge directory on your server. (At the root folder of your site.) You might have to create these folders first. Now edit the contents of that file by pasting the whole string generated by certbot into it. In our case it is the long text afBX9EXvQqUqzFooe02-22EfJ5TzcniFw7CvqlaMXCA.rX9ThTxJ4y47aLEr7xgEWcOm4v7Jr5kJeT4PLA98-0 Keep in mind that this filename will be generated every time you run certbot. So if you've already run this command before it should be changed again. Press Enter to Continue. At this point certbot will verify the existence of the file. Again, if you used the first method in this section without the acme challenge you should already be good to go. Adding PEM Files To Enable HTTPS Server Navigate to /etc/letsencrypt/live/site.com directory to verify the pem files were actually generated by the steps taken in the previous section. Now that we have privkey.pem and cert.pem generated we need to pass them to our Node server configuration using an options object. const express = require('express'); const https = require('https'); const port = 443; // Create Express app const app = express(); let site = 'example.com'; let port = 443; const certificates = { "key": fs.readFileSync(`/etc/letsencrypt/live/${site}/privkey.pem`), "cert": fs.readFileSync(`/etc/letsencrypt/live/${site}/fullchain.pem`) }; const server = event => { console.log(`${site} is listening on port ${port}!`); }; // Launch Node server with Express "app" https.createServer(certificates, app).listen(port, server); Just replace example.com with your actual domain name. For https connections it is proper to use port 443. However this is not a requirement - any allowed port number will still work. Whatever port you are using you also need to open it on your system for it to start working. Update the index.js file with code above. Log into your web host. Navigate to the root directory of your application and run node index. If all goes well at this point your server will be accessible via https protocol and the "Not Secure" message in Chrome (and some other browsers) should disappear. But There Is One More Thing... A Common Stumbling Point A certificate chain is the list of certificates that contains SSL certificate, intermediate certificate authorities and root certificate authority that enables the connecting device to verify that the SSL certificate is trustworthy. This is required for production servers. At this point your https site will open in Chrome and IE without a hitch! But if you open it in Firefox you may still see the lock icon. Firefox (among many other programs) hinges on checking the certificate chain. To properly set up a certificate you have to set up a certificate chain not just one key. Chrome and IE gracefully overlook this detail and show connections as secure. If you don't link to the certificate chain, you will not be able to successfully validate your https connection. This might interfere with things like adding Twitter cards to your site (because Twitter cards with images stored at a https address require chain verification) when looking up your card image via Twitter meta tags. And that's just one example. Many issues can arise if you don't link to the certificate chain. Luckily for us, the solution is simple. In previous steps Let'sEncrypt already generated fullchain.pem file in the same directory with cert.pem. All we have to do change cert.pem to fullchain.pem in the previous source code example as follows. Change the following line: const cert = /etc/letsencrypt/live/site.com/cert.pem; To: const cert = /etc/letsencrypt/live/site.com/fullchain.pem; Restart your Node server with node index.js and you should have a properly installed and fully working SSL certificate!

http://damianfallon.blogspot.com/2020/04/how-to-install-ssl-certificates-for.html

#SEO #Local SEO training

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knowledgewiki · 5 years ago

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Ubuntu drains too much battery in my laptop

I switched from Windows to Ubuntu 3 months ago because of the degree I’m studying (CS) and didn’t feel like doing my homework on a virtual machine because it wasn’t really fast. However, my battery doesn’t last for more than 2 hours, despite the fact that TLP is activated.

I’ve been considering switching to Mint but I’ve already gotten used to Ubuntu. Is there anything I could do to increase my battery’s time of use while not charging it or should I switch to another distro which consumes less battery?

Thank you in advance.

EDIT:

top - 23:29:23 up 23 min, 1 user, load average: 1,30, 1,35, 1,24 Tasks: 344 total, 2 running, 342 sleeping, 0 stopped, 0 zombie %Cpu(s): 2,2 us, 1,0 sy, 0,0 ni, 96,1 id, 0,0 wa, 0,0 hi, 0,7 si, 0,0 st MiB Mem : 11852,5 total, 9008,7 free, 868,8 used, 1975,1 buff/cache MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 10567,6 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 12010 hector 20 0 2850020 221788 82876 S 10,7 1,8 0:04.66 gnome-shell 11787 hector 20 0 281472 36024 23112 R 8,0 0,3 0:01.26 Xorg 12812 hector 20 0 961324 48208 35252 S 6,7 0,4 0:00.55 gnome-terminal- 301 root -51 0 0 0 0 S 1,3 0,0 0:02.70 irq/83-SYNA2B4B 11052 root 20 0 0 0 0 D 1,3 0,0 0:00.07 kworker/u24:3+events_unbound 12230 hector 20 0 369052 46648 27072 S 1,3 0,4 0:00.52 indicator-cpufr 12867 hector 20 0 14716 4404 3368 R 1,3 0,0 0:00.05 top 1 root 20 0 169032 12952 8012 S 0,0 0,1 0:03.29 systemd 2 root 20 0 0 0 0 S 0,0 0,0 0:00.00 kthreadd 3 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 rcu_gp 4 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 rcu_par_gp 6 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker/0:0H-kblockd 8 root 20 0 0 0 0 I 0,0 0,0 0:00.71 kworker/u24:0-events_power_efficient 9 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 mm_percpu_wq 10 root 20 0 0 0 0 S 0,0 0,0 0:00.02 ksoftirqd/0 11 root 20 0 0 0 0 I 0,0 0,0 0:01.05 rcu_sched 12 root rt 0 0 0 0 S 0,0 0,0 0:00.01 migration/0 13 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/0 14 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/0 15 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/1 16 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/1 17 root rt 0 0 0 0 S 0,0 0,0 0:00.02 migration/1 top - 23:29:57 up 23 min, 1 user, load average: 0,94, 1,26, 1,21 Tasks: 341 total, 1 running, 340 sleeping, 0 stopped, 0 zombie %Cpu(s): 1,1 us, 0,3 sy, 0,0 ni, 98,4 id, 0,1 wa, 0,0 hi, 0,2 si, 0,0 st MiB Mem : 11852,5 total, 9009,8 free, 843,2 used, 1999,5 buff/cache MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 10569,1 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 12010 hector 20 0 2848128 224820 84420 S 5,0 1,9 0:06.63 gnome-shell 11787 hector 20 0 289984 44564 31652 S 2,3 0,4 0:02.79 Xorg 12812 hector 20 0 963300 49732 35252 S 2,3 0,4 0:01.78 gnome-terminal- 301 root -51 0 0 0 0 S 1,3 0,0 0:03.10 irq/83-SYNA2B4B 12120 hector 20 0 387204 8456 6988 S 1,0 0,1 0:00.13 ibus-daemon top - 23:30:00 up 24 min, 1 user, load average: 0,94, 1,26, 1,21 Tasks: 341 total, 2 running, 339 sleeping, 0 stopped, 0 zombie %Cpu(s): 1,5 us, 0,4 sy, 0,0 ni, 98,1 id, 0,0 wa, 0,0 hi, 0,1 si, 0,0 st MiB Mem : 11852,5 total, 8956,1 free, 843,3 used, 2053,1 buff/cache MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 10515,5 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 12010 hector 20 0 2857888 233608 93184 S 8,7 1,9 0:06.84 gnome-shell 11787 hector 20 0 283276 37724 24284 R 2,9 0,3 0:02.89 Xorg 12812 hector 20 0 963300 49732 35252 S 1,9 0,4 0:01.84 gnome-terminal- 301 root -51 0 0 0 0 S 1,0 0,0 0:03.14 irq/83-SYNA2B4B 323 root -51 0 0 0 0 S 1,0 0,0 0:02.02 irq/128-i2c_hid 11785 hector 20 0 9016 6332 3972 S 1,0 0,1 0:00.41 dbus-daemon 12092 hector 20 0 2526096 29048 22044 S 1,0 0,2 0:00.40 cpufreq-service 12133 hector 20 0 278752 30804 18256 S 1,0 0,3 0:01.51 ibus-extension- 12867 hector 20 0 14716 4404 3368 R 1,0 0,0 0:00.21 top 1 root 20 0 169032 12952 8012 S 0,0 0,1 0:03.46 systemd 2 root 20 0 0 0 0 S 0,0 0,0 0:00.00 kthreadd 3 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 rcu_gp 4 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 rcu_par_gp 6 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker/0:0H-kblockd 8 root 20 0 0 0 0 I 0,0 0,0 0:00.78 kworker/u24:0-i915 9 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 mm_percpu_wq 10 root 20 0 0 0 0 S 0,0 0,0 0:00.02 ksoftirqd/0 11 root 20 0 0 0 0 I 0,0 0,0 0:01.08 rcu_sched 12 root rt 0 0 0 0 S 0,0 0,0 0:00.01 migration/0 13 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/0 14 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/0 15 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/1 top - 23:30:12 up 24 min, 1 user, load average: 1,02, 1,26, 1,22 Tasks: 342 total, 3 running, 339 sleeping, 0 stopped, 0 zombie %Cpu(s): 15,8 us, 2,5 sy, 0,0 ni, 79,9 id, 0,8 wa, 0,0 hi, 0,9 si, 0,0 st MiB Mem : 11852,5 total, 8914,1 free, 929,1 used, 2009,3 buff/cache MiB Swap: 2048,0 total, 2048,0 free, 0,0 used. 10474,7 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2499 root 20 0 360564 53432 14316 R 77,1 0,4 0:07.81 packagekitd 13084 hector 20 0 1109492 122176 37864 R 35,5 1,0 0:02.70 gnome-software 1277 root 20 0 2401688 30540 13608 S 12,3 0,3 0:03.34 snapd 11787 hector 20 0 292052 45376 31936 S 4,0 0,4 0:03.83 Xorg 12812 hector 20 0 963300 49992 35356 S 3,1 0,4 0:02.30 gnome-terminal- 301 root -51 0 0 0 0 S 0,6 0,0 0:03.23 irq/83-SYNA2B4B 398 root 19 -1 190984 43232 41144 S 0,6 0,4 0:01.16 systemd-journal 13087 hector 20 0 422332 28540 19924 S 0,6 0,2 0:00.15 update-notifier 1 root 20 0 169032 12952 8012 S 0,3 0,1 0:03.49 systemd 323 root -51 0 0 0 0 S 0,3 0,0 0:02.07 irq/128-i2c_hid 1251 message+ 20 0 9908 6508 3852 S 0,3 0,1 0:03.52 dbus-daemon 1258 root 20 0 241172 7884 6780 S 0,3 0,1 0:00.24 accounts-daemon 1375 root 20 0 244144 11008 7768 S 0,3 0,1 0:03.58 polkitd 2125 root 20 0 0 0 0 I 0,3 0,0 0:00.48 kworker/u24:2-events_power_efficient 11785 hector 20 0 9016 6332 3972 S 0,3 0,1 0:00.43 dbus-daemon 12063 hector 20 0 317308 9032 8004 S 0,3 0,1 0:00.01 goa-identity-se 12092 hector 20 0 2534292 29244 22044 S 0,3 0,2 0:00.45 cpufreq-service 12867 hector 20 0 14716 4404 3368 R 0,3 0,0 0:00.25 top 2 root 20 0 0 0 0 S 0,0 0,0 0:00.00 kthreadd 3 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 rcu_gp 4 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 rcu_par_gp 6 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker/0:0H-kblockd 8 root 20 0 0 0 0 I 0,0 0,0 0:00.79 kworker/u24:0-events_unbound 9 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 mm_percpu_wq 10 root 20 0 0 0 0 S 0,0 0,0 0:00.02 ksoftirqd/0 11 root 20 0 0 0 0 I 0,0 0,0 0:01.09 rcu_sched 12 root rt 0 0 0 0 S 0,0 0,0 0:00.01 migration/0 13 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/0 14 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/0 15 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/1 16 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/1 17 root rt 0 0 0 0 S 0,0 0,0 0:00.02 migration/1 18 root 20 0 0 0 0 S 0,0 0,0 0:00.02 ksoftirqd/1 20 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker/1:0H-kblockd 21 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/2 22 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/2 23 root rt 0 0 0 0 S 0,0 0,0 0:00.02 migration/2 24 root 20 0 0 0 0 S 0,0 0,0 0:00.01 ksoftirqd/2 26 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker/2:0H-kblockd 27 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/3 28 root -51 0 0 0 0 S 0,0 0,0 0:00.00 idle_inject/3 29 root rt 0 0 0 0 S 0,0 0,0 0:00.02 migration/3 30 root 20 0 0 0 0 S 0,0 0,0 0:00.01 ksoftirqd/3 32 root 0 -20 0 0 0 I 0,0 0,0 0:00.00 kworker/3:0H-kblockd 33 root 20 0 0 0 0 S 0,0 0,0 0:00.00 cpuhp/4

Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 39 bits physical, 48 bits virtual CPU(s): 12 On-line CPU(s) list: 0-7 Off-line CPU(s) list: 8-11 Thread(s) per core: 1 Core(s) per socket: 6 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 158 Model name: Intel(R) Core(TM) i7-8750H CPU @ 2.20GHz Stepping: 10 CPU MHz: 1400.104 CPU max MHz: 4100,0000 CPU min MHz: 800,0000 BogoMIPS: 4399.99 Virtualisation: VT-x L1d cache: 96 KiB L1i cache: 96 KiB L2 cache: 768 KiB NUMA node0 CPU(s): 0-7 Vulnerability Itlb multihit: KVM: Mitigation: Split huge pages Vulnerability L1tf: Mitigation; PTE Inversion; VMX conditional cache flushes, SMT vulnerable Vulnerability Mds: Mitigation; Clear CPU buffers; SMT vulnerable Vulnerability Meltdown: Mitigation; PTI Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization Vulnerability Spectre v2: Mitigation; Full generic retpoline, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling Vulnerability Tsx async abort: Not affected Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcn t tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgs base tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_ epp md_clear flush_l1d

EDIT 2:

Time User Nice Sys Idle IO Run Ctxt/s IRQ/s Watts 11:22:36 0.4 0.0 0.1 98.1 1.5 1 803 737 18.12 11:22:46 0.2 0.0 0.1 99.7 0.0 1 587 310 17.99 11:22:56 0.3 0.0 0.1 98.9 0.7 1 680 346 17.93 11:23:06 0.3 0.0 0.1 99.6 0.0 1 594 312 17.92 11:23:16 0.3 0.0 0.1 99.5 0.1 1 658 349 17.89 11:23:26 0.3 0.0 0.1 99.6 0.0 1 673 349 17.89 11:23:36 0.3 0.0 0.2 99.5 0.0 1 675 361 17.89 11:23:46 0.3 0.0 0.1 99.2 0.4 1 643 333 17.88 11:23:56 0.3 0.0 0.2 99.5 0.0 1 663 342 17.87 11:24:06 0.2 0.0 0.1 99.8 0.0 1 588 320 17.84 11:24:16 0.3 0.0 0.1 99.4 0.2 1 666 352 17.85 11:24:26 0.4 0.0 0.2 99.3 0.2 1 788 417 17.90 11:24:36 0.4 0.0 0.1 99.3 0.1 1 706 390 17.88 11:24:46 0.3 0.0 0.1 99.5 0.1 1 601 315 17.85 11:24:56 0.3 0.0 0.1 99.4 0.2 1 692 364 17.88 11:25:06 0.3 0.0 0.1 99.6 0.0 1 598 318 17.86 11:25:16 0.3 0.0 0.1 99.6 0.0 1 684 370 17.86 11:25:26 0.4 0.0 0.2 99.4 0.1 1 735 402 17.88 11:25:36 0.3 0.0 0.1 99.5 0.1 1 674 368 17.88 11:25:46 0.2 0.0 0.0 99.5 0.2 1 606 310 17.84 11:25:56 0.4 0.0 0.1 99.4 0.1 2 667 355 17.87 11:26:06 0.4 0.0 0.1 99.5 0.1 1 634 320 17.86 Time User Nice Sys Idle IO Run Ctxt/s IRQ/s Watts 11:26:16 0.4 0.0 0.1 99.5 0.1 1 652 342 17.86 11:26:26 0.4 0.0 0.1 99.4 0.1 1 670 340 17.86 11:26:36 0.6 0.0 0.3 99.0 0.1 1 1359 2139 18.00 11:26:46 0.6 0.0 0.2 99.1 0.1 1 1125 1684 18.02 11:26:56 0.3 0.0 0.1 99.4 0.2 1 600 313 17.95 11:27:06 1.1 0.0 0.2 98.6 0.1 1 975 467 17.99 11:27:16 0.3 0.0 0.2 99.5 0.1 1 669 334 17.93 11:27:26 0.3 0.0 0.2 99.5 0.1 1 641 332 17.89 11:27:36 0.4 0.0 0.2 99.3 0.1 1 898 986 17.95 11:27:46 0.2 0.0 0.1 99.7 0.1 1 595 304 17.91 11:27:56 0.4 0.0 0.1 99.4 0.1 1 661 335 17.89 11:28:06 0.3 0.0 0.1 99.7 0.0 1 586 290 17.87 11:28:16 0.4 0.0 0.1 99.4 0.0 1 665 345 17.87 11:28:26 0.3 0.0 0.1 99.6 0.0 1 657 350 17.88 11:28:36 0.4 0.0 0.2 99.1 0.4 1 690 367 17.89 11:28:46 0.3 0.0 0.1 99.6 0.0 1 599 298 17.89 11:28:56 0.5 0.0 0.2 99.0 0.4 2 665 358 17.89 11:29:06 0.3 0.0 0.1 99.6 0.1 1 595 309 17.88 11:29:16 0.4 0.0 0.1 99.4 0.1 1 667 349 17.89 11:29:26 0.3 0.0 0.1 99.5 0.1 1 665 350 17.88 11:29:36 0.3 0.0 0.1 99.4 0.2 1 680 372 17.89 11:29:46 0.2 0.0 0.1 99.7 0.1 1 599 316 17.87 Time User Nice Sys Idle IO Run Ctxt/s IRQ/s Watts 11:29:56 0.4 0.0 0.1 99.5 0.0 1 644 337 17.88 11:30:06 0.3 0.0 0.1 99.6 0.1 1 610 326 17.87 11:30:16 0.4 0.0 0.2 99.4 0.0 1 644 341 17.88 11:30:26 0.4 0.0 0.2 99.1 0.3 1 756 368 17.91 -------- ----- ----- ----- ----- ----- ---- ------ ------ ------ Average 0.3 0.0 0.1 99.4 0.1 1.0 691.2 431.1 17.90 GeoMean 0.3 0.0 0.1 99.4 0.0 1.0 680.9 382.4 17.90 StdDev 0.1 0.0 0.0 0.3 0.2 0.2 138.8 331.3 0.05 -------- ----- ----- ----- ----- ----- ---- ------ ------ ------ Minimum 0.2 0.0 0.0 98.1 0.0 1.0 585.8 290.4 17.84 Maximum 1.1 0.0 0.3 99.8 1.5 2.0 1358.6 2139.1 18.12 -------- ----- ----- ----- ----- ----- ---- ------ ------ ------ Summary: System: 17.90 Watts on average with standard deviation 0.05

EDIT 3 (OSPower settings): Photo here

1 Answer

I believe a lot of it comes from the fact that snapd comsumes a lot of power as it mounts squashfs images for every single new program beyond the existing ones already installed, like: gnome-shell, gnome-calculator, gnome-characters and so on.

Each one of those programs have to be mounted. So, if your computer does not have enough “horse power” to handle all that, I suggest you may try to go raw with just apt packages by removing SNAPD. There is a post here on askubuntu that tells you how to do itsafelly.

Link:

How can I safely remove snap without breaking apparmor

After you remove snapd the cycle consumption AND memory consumption goes down a fair bit.

If you remove it you will not have access to all snap channels and updates as they come, before new deb packages arrive.

Archive from: https://askubuntu.com/questions/1192376/ubuntu-drains-too-much-battery-in-my-laptop

from https://knowledgewiki.org/ubuntu-drains-too-much-battery-in-my-laptop/

#knowledgewiki

0 notes

webdesignersolutions · 6 years ago

Link

Site Admin demo • Source

16 years ago I stumbled into hosting with Ensim WEBppliance, which was a clusterfuck of a control panel necessitating a bunch of bugfixes. Those bugfixes spawned a control panel, apnscp (Apis Networks Control Panel), that I’ve continued to develop to this day. v3 is the first public release of apnscp and to celebrate I’m giving away 400 free lifetime licenses on r/webhosting each good for 1 server.

Visit apnscp.com/activate/webhosting-lt to get started customizing the installer. Database + PHP are vendor agnostic. apnscp supports any-version Node/Ruby/Python/Go. I’m interested in feedback, if not bugs then certainly ideas for improvement.

apnscp ships with integrated Route 53/CF DNS support in addition to Linode, DO, and Vultr. Additional providers are easy to create. apnscp includes 1-click install/updates for WordPress, Drupal, Laravel, Ghost, Discourse, and Magento. Enabling Passenger, provided you have at least 2 GB memory, opens the door to use any-version Ruby, Node, and Python on your server.

Minimum requirements

2 GB RAM

20 GB disk

CentOS 7.4

xfs or ext4 filesystem

Containers not supported (OpenVZ, Virtuozzo)

Features

100% self-hosted, no third-party agents required

1-click installs/automatic updates for WordPress, Drupal, Ghost, Discourse, Laravel, Magento

Let’s Encrypt issuance, automatic renewals

Resource enforcement via cgroups

Read-only roles for PHP

Integrated DNS for AWS, CF, Digital Ocean, Linode, and Vultr

Multi-tenancy, each account exists in a synthetic root

Any-version Node, Ruby, Python, Go

Automatic system/panel updates

OS checksums, perform integrity checks without RPM hell

Push monitoring for services

SMTP policy controls with rspamd

Firewall, brute-force restrictions on all services including HTTP with a rate-limiting sieve

Malware scrubbing

Multi-server support

apnscp won’t fix all of your woes; you still need to be smart about whom you host and what you host, but it is a step in the right direction. apnscp is not a replacement for a qualified system administrator. It is however a much better alternative to emerging panels in this market.

Installation

Use apnscp Customizer to configure your server as you’d like. See INSTALL.md for installation + usage.

Monitoring installation apnscp will provision your server and this takes around 45 minutes to 2 hours to complete the first time. You can monitor installation real-time from the terminal:

tail -f /root/apnscp-bootstrapper.log

Post Install If you entered an email address while customizing (apnscp_admin_email) and the server isn’t in a RBL, then you will receive an email with your login information. If you don’t get an email after 2 hours, log into the server and check the status:

tail -n30 /root/apnscp-bootstrapper.log

The last line should be similar to: 2019-01-30 18:39:02,923 p=3534 u=root | localhost : ok=3116 changed=1051 unreachable=0 failed=0

If failed=0, everything is set! You can reset the password and refer back to the login information to access the panel or reset your credentials. Post-install will welcome you with a list of helpful commands to get started as well. You may want to change -n30 to -n50!

If failed=n where n > 0, send me a PM, email ([email protected]), get in touch on the forums, or Discord.

Shoot me a PM if you have a question or hop on Discord chat. Either way feedback makes this process tick. Enjoy!

Installation FAQ

Is a system hostname necessary?

No. It can be set at a later date with cpcmd config_set net.hostname new.host.name. A valid hostname is necessary for mail to reliably relay and valid SSL issuance. apnscp can operate without either.

Do you support Ubuntu?

No. This is a highly specialized platform. Red Hat has a proven track record of honoring its 10 year OS lifecycles, which from experience businesses like to move every 5-7 years. Moreover certain facilities like tuned, used to dynamically optimize your server, are unique to Red Hat and its derivatives. As an aside, apnscp also provides a migration facility for seamless zero downtime migrations.

How do I update the panel?

It will update automatically unless disabled. cpcmd config_set apnscp.update-policy major will set the panel to update up to major version changes. cpcmd config_set system.update-policy default will set the OS to update packages as they’re delivered. These are the default panel settings. Supported Web Apps will update within 24 hours of a major version release and every Wednesday/Sunday for asset updates (themes/plugins). An email is sent to the contact assigned for each site (siteinfo,email service variable).

If your update policy is set to “false” in apnscp-vars.yml, then you can manually update the panel by running upcp and OS via yum update -y. If you’ve opted out of 1-click updates, then caveat emptor.

Mail won’t submit from the server on 25/587 via TCP.

This is by design. Use sendmail to inject into the mail queue via binary or authenticate with a user account to ensure ESMTPA is used. Before disabling, and as one victimized by StealRat, I’d urge caution. Sockets are opaque: it’s impossible to discern the UID or PID on the other end.

To disable:

cpcmd config_set apnscp.bootstrapper postfix_relay_mynetworks true

upcp -sb mail/configure-postfix

config_set manages configuration scopes. Scopes are discussed externally. upcp is a wrapper to update the panel, reset the panel (--reset), run integrity checks (-b) with optional tags. -s skips migrations that are otherwise compulsory if present during a panel update; you wouldn’t want an incomplete platform!

My connection is firewalled and I can’t send mail directly!

apnscp provides simple smart host support via configuration scope.

How do I uninstall MySQL or PostgreSQL?

Removing either would render the platform inoperable. Do not do this. PostgreSQL handles mail, long-term statistics, and backup account metadata journaling. MySQL for everything else, including panel data.

Oof. apnscp is taking up 1.5 GB of memory!

There are two important tunables, has_low_memory and clamav_enabled. has_low_memory is a macro that disables several components including:

clamav_enabled => false

passenger_enabled => false

variety of rspamd performance enhancements (redis, proxy worker, neural) => false

MAKEFLAGS=-j1 (non-parallelized build)

dovecot_secure_mode => false (High-security mode)

Switches multi-threaded job daemon Horizon to singular “queue”

clamav_enabled disables ClamAV as well as upload scrubbing and virus checks via Web > Web Apps. This is more of a final line of defense. So long as you are the only custodian of sites on your server, it’s safe to disable.

Resources

apnscp documentation

v3 release notes

Adding sites, logging in

Customizing apnscp

CLI helpers

Knowledgebase – focused for end-users. Administration is covered under hq.apnscp.com

Scopes – simplify complex tasks

License information

Licenses are tied to the server but may be transferred to a new server. Once transferred from the server apnscp will become deactivated on the server, which means your sites will continue to operate but apnscp can no longer help you manage your server, as well as deploy automatic updates. A copy of the license can be made either by copying /usr/local/apnscp/config/license.pem or License > <u>Download License</u> in the top-right corner. Likewise to install the license on a new machine just replace config/license.pem with your original copy.

Submitted February 17, 2019 at 05:14PM by tsammons https://www.reddit.com/r/webhosting/comments/arqya9/built_a_control_panel_over_16_years_free_lifetime/?utm_source=ifttt

from Blogger http://webdesignersolutions1.blogspot.com/2019/02/built-control-panel-over-16-years-free.html via IFTTT

#IFTTT #WordPress

0 notes

nuochoaxachtay5ml · 6 years ago

Text

[Bá Ngọc Cương] Khóa học Lập Trình Web Tốc độ Cao, Thời Gian Thực Với NodeJS

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Người muốn phát triển nghề nghiệp với NodeJS

Giới thiệu khóa học

Node.js là 1 nền tảng phát triển ứng dụng phía server. Nó sử dụng ngôn ngữ lập trình JavaScript. Mỗi kết nối đến sẽ sinh ra 1 sự kiện, cho phép hàng chục nghìn user truy cập cùng lúc và tốc độ thì cực nhanh. NodeJS hiện đang là 1 Javascript Engine cực hot, được nhiều người ưa chuộng bởi tốc độ nhanh, nhẹ, đơn giản và thư viện hỗ trợ phong phú. Vậy còn chần chờ gì nữa mà không Update xu thế! Khoá học “Lập trình web với NodeJS” sẽ hướng dẫn bạn từng bước để xây dựng các ứng dụng Web thời gian thực, tốc độ cao: BLOG cá nhân, CHAT nhóm,..

Nội dung khóa học

Phần 1: Giới thiệu và cài đặt môi trường

Bài 1: Cài đặt NodeJS trên Window

Bài 2: Cài đặt NodeJS trên Linux – Ubuntu

Bài 3: Cài đặt NodeJS trên MacOS

Bài 4: Viết ứng dụng Helloworld với NodeJS

Phần 2: Làm việc với NodeJS

Bài 5: Node module, module.export và require

Bài 6: Sử dụng NPM để quản lý package và module trong NodeJS

Bài 7: File System và làm việc với file trong NodeJS

Bài 8: Asynchronous và Callback function trong NodeJS

Bài 9: Asynchronous và cách dùng Promise trong NodeJS

Bài 10: Tạo webserver cơ bản với HTTP module

Bài 11: Tạo Webservice API trả về JSON với HTTP module

Phần 3: Làm việc với ExpressJS Framework

Bài 12: Cài đặt ExpressJS, xây dựng cấu trúc thư mục cho dự án

Bài 13: ExpressJS route

Bài 14: Cài đặt một số middleware cần thiết: body-passer, session

Bài 15: Tích hợp Template Engine EJS với ExpressJS

Bài 16: Cấu hình Static folder JS, CSS, IMAGE

Phần 4: Cài đặt và kết nối CSDL MySQL

Bài 17: Cài đặt MySQL trên windows và linux. Một số thao tác lệnh cơ bản

Bài 18: Kết nối với MySQL trong NodeJS

Phần 5: Xây dựng module Đăng Ký và Đăng nhập

Bài 19: Thiết kế Cơ sở dữ liệu

Bài 20: Xây dựng giao diện Đăng ký

Bài 21: Route và viết logic controller cho chức năng Đăng Ký

Bài 22: Viết logic model cho chức năng đăng ký

Bài 23: Mã hoá password với bcrypt module

Bài 24: Xây dựng giao diện Đăng nhập

Bài 25: Route và logic controller cho chức năng đăng nhập (Phần 1)

Bài 26: Route và logic controller cho chức năng đăng nhập (Phần 2)

Phần 6: Xây dựng trang quản trị CMS cho BLOG

Bài 27: Thiết kế Cơ sở dữ liệu

Bài 28: Xây dựng giao diện trang Admin Dashboard – liệt kê danh sách bài viết

Bài 29: Route và Logic trang Admin Dashboard

Bài 30: Xây dựng giao diện trang thêm mới bài viết

Bài 31: Lập trình logic cho chức năng thêm mới bài viết

Bài 32: Xử lý thông báo lỗi trong trang thêm mới bài viết

Bài 33: Xây dựng giao diện trang cập nhật bài viết

Bài 34: Lập trình logic cho chức năng cập nhật bài viết

Bài 35: Xây dựng API xoá bài viết

Bài 36: Xây dựng Trang danh sách users

Bài 37: Xử lý session

Phần 7: Xây dựng BLOG cá nhân

Bài 38: Xây dựng giao diện trang chủ Blog

Bài 39: Route và Logic lấy dữ liệu cho trang chủ

Bài 40: Xây dựng trang chi tiết bài viết

Bài 41: Xây dựng trang About cho Blog

Phần 8: Xây dựng ứng dụng CHAT thời gian thực với NodeJS và Socket.IO

Bài 42: Cài đặt SocketIO

Bài 43: Xây dựng giao diện Chat đơn giản

Bài 44: Kết nối Socket giữa Client và Server

Bài 45: Lập trình logic khi người dùng tham gia chat

Bài 46: Lập trình Logic khi người dùng gửi message chat

Bài 47: Lập trình logic khi người dùng Disconnect chat

Bài 48: Hoàn thiện ứng dụng chat

Phần 9: Triển khai ứng dụng NodeJS trên Server

Bài 49: Import cơ sở dữ liệu

Bài 50: Cài đặt PM2 để chạy ứng dụng NodeJS

Bài 51: Cài đặt Webserver Nginx và cấu hình Proxy sang ứng dụng NodeJS

Bài 52: Thiết lập tên miền cho ứng dụng

Giảng viên

Bá Ngọc Cương Software Engineer, Backend Developer, Project Leader Anh có nhiều kinh nghiệm làm việc với môi trường Server, các hệ thống Backend có độ phức tạp lớn như Social Network, Statistic System … Anh là người yêu thích Open-Source, có nhiều kinh nghiệm với các công nghệ hệ thống và ngôn ngữ lập trình. Big Data, Python, NodeJS, MongoDB, RabbitMQ … Blog: https://cuongba.com Linkedin: http://bit.ly/2EP0o0t

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Bài 1: Cài đặt NodeJS trên Window

Bài 2: Cài đặt NodeJS trên Linux – Ubuntu

Bài 3: Cài đặt NodeJS trên MacOS

Bài 4: Viết ứng dụng Helloworld với NodeJS

Bài viết [Bá Ngọc Cương] Khóa học Lập Trình Web Tốc độ Cao, Thời Gian Thực Với NodeJS đã xuất hiện đầu tiên vào ngày Học Từ Chuyên Gia.

Viết Web Server, xây dựng Blog cá nhân, tạo ứng dụng Chat web… với NodeJS, 52 bài giảng 06 giờ 10 phút, mua 1 lần học trọn đời, Giảng viên:Bá Ngọc Cương, Chủ đề: Công nghệ thông tin,

Bài viết [Bá Ngọc Cương] Khóa học Lập Trình Web Tốc độ Cao, Thời Gian Thực Với NodeJS đã xuất hiện đầu tiên vào ngày Học Từ Chuyên Gia.

Xem: https://msvui.com/s/ba-ngoc-cuong-lap-trinh-web-toc-do-cao-thoi-gian-thuc-voi-nodejs

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graciedroweuk · 7 years ago

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Five Leasing budget DisplayPort Monitors For 2016 — KelsusIT.com — mobile laptops, desktops , servers

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