#localhost Application

[heart-ghost-studyblr]

This week was a productive one. I've been studying microservices to better understand distributed systems. At the bus company where I work, we use a monolithic system—an old-school setup style with MySQL, PHP, some Java applications, localhost server and a mix of other technologies. However, we've recently started implementing some features that require scalability, and this book has been instrumental in helping me understand the various scenarios involved.

In the first chapters, I've gained a clearer understanding of monolithic systems and the considerations for transitioning to a distributed system, including the pros and cons.

I've also been studying Java and Apache Kafka for event-driven architecture, a topic that has captured my full attention. In this case, the Confluent training platform offers excellent test labs, and I've been running numerous tests there. Additionally, I have my own Kafka cluster set up using Docker for most configurations.

With all that said, I've decided to update this blog weekly since daily updates it's not gonna work.

[thepopemobile]

How to host local Club Penguin Private Server (CPPS) on Silicon Mac (M1/M2/M3) thru play.localserver & Solero's Wand install.

I spent so long looking for a solution to this that I want to contribute what worked for me. I got so frustrated looking for something that worked, and I hope this guide will help others avoid that frustration.

This is NOT a guide on hosting or serving a CPPS. This is a guide on making a CPPS playable by locally hosting your server on your Silicon M1/M2/M3 Macbook. This worked on my M3 Macbook, and, in my experience, it seems the newer the hardware/operating system gets, the harder it is accomplish this.

DISCLAIMER *I do not know very much about this topic. I can paste commands into terminal and execute them, I know how to install DMG files I downloaded from the internet (the bar is in hell, I am aware), and I know how to enter play.localhost to run this in a browser. I am no expert; this guide is for beginners like myself who want a CPPS. This is beginner-level stuff. If you want advice or need help hosting, refer to the Wand Github page, Solero's Dash (an actual web-hosting solution for Houdini/Wand), Solero's discord, or, when in doubt, Google it. (I recommend only asking for help in Solero's discord for help AFTER trying your best to search for a solution, and even after that, trying to search key terms in their chat logs. They often have to repeat the same advice over, and over, and over again.)*

TLDR; IDK shit about shit

USING WAND INSTALLER

wand description from github: Wand makes it easy to configure dash, houdini and a media server utilizing docker & docker-compose.

All the assets are located here.

Installation instructions from the above link:

Installation script 1. run the script: bash <(curl -s https://raw.githubusercontent.com/solero/wand/master/install.sh) 2. Answer Questions which are: Database password (Leave blank for random password) Hostname (example: clubpenguin.com) (Leave empty for localhost) External IP Address (Leave empty for localhost) 3. Run and enjoy. Run this command: $ cd wand && sudo docker-compose up

The steps I took:

1. Install Docker via Terminal & Homebrew.

Installing the Docker DMG file did not work properly when I tried. I realized later that Docker is seperate from Docker Desktop (the DMG file). I got Docker to work by using Terminal to install Homebrew, and then using Homebrew to install Docker.

Indented text = paste into Terminal.

Command to install Homebrew:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

Ensure Homebrew is installed:

brew --version

Install Docker:

brew install docker

Recommended: Install Docker Desktop (useful in determining if your server is running, stopped, or stuck in a restart loop).

brew install --cask docker

Run Docker Desktop:

open -a Docker

2. Run installation script:

bash <(curl -s https://raw.githubusercontent.com/solero/wand/master/install.sh)

From Github instructions:

Answer Questions which are:

Database password (Leave blank for random password)

Hostname (example: clubpenguin.com) (Leave empty for localhost)

External IP Address (Leave empty for localhost)

3. $ cd wand && sudo docker-compose up

This is what is provided in the Github. This command didn't work on Mac; I believe it's formatted for Linux OS. Here's how I broke it up and enabled it to run from Mac's Terminal.

Navigate to Wand directory:

cd wand

Double-check if you're in the right directory:

ls

Start Docker container:

docker-compose up

If the above doesn't work, try

docker compose up

or

brew install docker-compose

Takes a second...

Ensure Docker is running:

docker info

If it isn't, open the Docker Desktop application.

*After using compose up, this error may appear:*

WARN[0000] /Users/[user]/wand/docker-compose.yml: the attribute version is obsolete, it will be ignored, please remove it to avoid potential confusion

This is harmless. If you get annoyed by errors, this can be solved by:

nano docker-compose.yml

See Version 3.7 at the top? Delete that line.

Ctrl-X (NOT COMMAND-X) to exit, Y to save, Enter.

PLAY.LOCALHOST

Type http://PLAY.LOCALHOST into a browser.

Create a penguin.

Try logging in that penguin:

This step was agony. I'm not savvy with running obsolete or deprecated software, and, of course, Club Penguin (and Houdini/Wand's assest) uses Flash, which was discontinued, and timebombed by Adobe, in 2021.

I tried Ruffle. Club Penguin Journey uses Ruffle, so why can't I?

Running Ruffle in Firefox:

No luck.

In the Solero discord, they'll direct to this blog post:

This method does not work on Mac M1/M2/M3. The program is "out of date" and you cannot run it. It works on Macbook's running Sonoma and backward. I'm on an M3 running Sequoia.

they'll often post this video in the discord:

In theory, this method should work, and it does for many, but for whatever reason, not on my M3. I tried different versions of Ungoogled, I tried so many different patches of Pepperflash, and it never cooperated. I tried Pepperflash, I tried Fast Patch!, I tried dedicated Flash browsers, running Flash plugins for Pale Moon, Ungoogled, Waterfox, but I could never get past him.

Every time I see this stupid penguin's face I'm filled with rage. But I am going to save you that rage!!!

If you get this method to work, yay! I could not. Maybe I don't know enough about patching, maybe I'm a little tech stupid.

WHAT WORKED: Using a dedicated CPPS desktop application that allows you to plug in a URL.

I give you...

He is your solution, your answer to

I discovered this solution through Solero's Discord, when someone answered a question re: playing online.

Waddle Forever was not what I was looking forever, but I noticed in their credits:

The electron client is originally forked from the Club Penguin Avalanche client. The server is based in solero's works in reverse engineering the Club Penguin server (Houdini server emulator). The media server is also mostly from solero's media servers.

And that's how I found out the solution: Using CPA Client

Download the CPAvalanche Client

It runs Adode Flash x64. Easy peasy.

(the instructions are in Portuguese, but for English users:

Navigate to releases.

And download this one:

Once downloaded, open.

Drag into applications.

Run http://play.localhost through the client:

Open CPAvalanche Client. It will direct you to CPAvalance once loaded, but you're here because you want to play play.localhost.

Navigate to CPAvalanche Client next to your Apple. Click Mudar a URL do Club Penguin.

Press Sim.

URL: http://play.localhost

Ok.

Press Login once the page loads, and...

That's it! No more penguin! Have fun :)

CREDITS:

Solero Discord / Waddle Forever / Wand / CPA Client / Solero.Me

[govindhtech]

Obsidian And RTX AI PCs For Advanced Large Language Model

How to Utilize Obsidian‘s Generative AI Tools. Two plug-ins created by the community demonstrate how RTX AI PCs can support large language models for the next generation of app developers.

Obsidian Meaning

Obsidian is a note-taking and personal knowledge base program that works with Markdown files. Users may create internal linkages for notes using it, and they can see the relationships as a graph. It is intended to assist users in flexible, non-linearly structuring and organizing their ideas and information. Commercial licenses are available for purchase, however personal usage of the program is free.

Obsidian Features

Electron is the foundation of Obsidian. It is a cross-platform program that works on mobile operating systems like iOS and Android in addition to Windows, Linux, and macOS. The program does not have a web-based version. By installing plugins and themes, users may expand the functionality of Obsidian across all platforms by integrating it with other tools or adding new capabilities.

Obsidian distinguishes between community plugins, which are submitted by users and made available as open-source software via GitHub, and core plugins, which are made available and maintained by the Obsidian team. A calendar widget and a task board in the Kanban style are two examples of community plugins. The software comes with more than 200 community-made themes.

Every new note in Obsidian creates a new text document, and all of the documents are searchable inside the app. Obsidian works with a folder of text documents. Obsidian generates an interactive graph that illustrates the connections between notes and permits internal connectivity between notes. While Markdown is used to accomplish text formatting in Obsidian, Obsidian offers quick previewing of produced content.

Generative AI Tools In Obsidian

A group of AI aficionados is exploring with methods to incorporate the potent technology into standard productivity practices as generative AI develops and speeds up industry.

Community plug-in-supporting applications empower users to investigate the ways in which large language models (LLMs) might improve a range of activities. Users using RTX AI PCs may easily incorporate local LLMs by employing local inference servers that are powered by the NVIDIA RTX-accelerated llama.cpp software library.

It previously examined how consumers might maximize their online surfing experience by using Leo AI in the Brave web browser. Today, it examine Obsidian, a well-known writing and note-taking tool that uses the Markdown markup language and is helpful for managing intricate and connected records for many projects. Several of the community-developed plug-ins that add functionality to the app allow users to connect Obsidian to a local inferencing server, such as LM Studio or Ollama.

To connect Obsidian to LM Studio, just select the “Developer” button on the left panel, load any downloaded model, enable the CORS toggle, and click “Start.” This will enable LM Studio’s local server capabilities. Because the plug-ins will need this information to connect, make a note of the chat completion URL from the “Developer” log console (“http://localhost:1234/v1/chat/completions” by default).

Next, visit the “Settings” tab after launching Obsidian. After selecting “Community plug-ins,” choose “Browse.” Although there are a number of LLM-related community plug-ins, Text Generator and Smart Connections are two well-liked choices.

For creating notes and summaries on a study subject, for example, Text Generator is useful in an Obsidian vault.

Asking queries about the contents of an Obsidian vault, such the solution to a trivia question that was stored years ago, is made easier using Smart Connections.

Open the Text Generator settings, choose “Custom” under “Provider profile,” and then enter the whole URL in the “Endpoint” section. After turning on the plug-in, adjust the settings for Smart Connections. For the model platform, choose “Custom Local (OpenAI Format)” from the options panel on the right side of the screen. Next, as they appear in LM Studio, type the model name (for example, “gemma-2-27b-instruct”) and the URL into the corresponding fields.

The plug-ins will work when the fields are completed. If users are interested in what’s going on on the local server side, the LM Studio user interface will also display recorded activities.

Transforming Workflows With Obsidian AI Plug-Ins

Consider a scenario where a user want to organize a trip to the made-up city of Lunar City and come up with suggestions for things to do there. “What to Do in Lunar City” would be the title of the new note that the user would begin. A few more instructions must be included in the query submitted to the LLM in order to direct the results, since Lunar City is not an actual location. The model will create a list of things to do while traveling if you click the Text Generator plug-in button.

Obsidian will ask LM Studio to provide a response using the Text Generator plug-in, and LM Studio will then execute the Gemma 2 27B model. The model can rapidly provide a list of tasks if the user’s machine has RTX GPU acceleration.

Or let’s say that years later, the user’s buddy is visiting Lunar City and is looking for a place to dine. Although the user may not be able to recall the names of the restaurants they visited, they can review the notes in their vault Obsidian‘s word for a collection of notes to see whether they have any written notes.

A user may ask inquiries about their vault of notes and other material using the Smart Connections plug-in instead of going through all of the notes by hand. In order to help with the process, the plug-in retrieves pertinent information from the user’s notes and responds to the request using the same LM Studio server. The plug-in uses a method known as retrieval-augmented generation to do this.

Although these are entertaining examples, users may see the true advantages and enhancements in daily productivity after experimenting with these features for a while. Two examples of how community developers and AI fans are using AI to enhance their PC experiences are Obsidian plug-ins.

Thousands of open-source models are available for developers to include into their Windows programs using NVIDIA GeForce RTX technology.

Read more on Govindhtech.com

[thesilentpotato]

hey um so idk where to go for this but im trying to back up my blogs and i saw you posted about tumblr utils which is what i was already looking into using

i got all the way up to where it asks for the api key and i went to the registering place but it wants a website and callback/redirect urls? and i dont have any of those. is it supposed to be the github?

im lost and its scary 🥺 can i have some help please? its ok if you cant help but id really appreciate it

Hi Anon! It's been a while since I first started the process, so let me look at that for you.

So, it looks like for the website and callback URL I just used localhost. "localhost" is not a live website you visit on the internet, but a URL for something hosted on your computer that only you can access. So basically a dummy URL.

For both Application Website and callback URL I used "http://localhost:8888/[nameofapplication]". I put in something random for my application name but for you maybe it could be "http://localhost:8888/blogname".

I don't think the text after "8888/" matters though.

I don't have the field for redirect URLs filled out somehow, but I imagine putting the same localhost URL could work.

I hope this helps! Let me know if it works or something is weird, I can try to find the guide I used to set mine up as well. Really you just need to fill this out for the OAuth Key, you're not actually going to use your "application."

[qcs01]

Ansible Collections: Extending Ansible’s Capabilities

Ansible is a powerful automation tool used for configuration management, application deployment, and task automation. One of the key features that enhances its flexibility and extensibility is the concept of Ansible Collections. In this blog post, we'll explore what Ansible Collections are, how to create and use them, and look at some popular collections and their use cases.

Introduction to Ansible Collections

Ansible Collections are a way to package and distribute Ansible content. This content can include playbooks, roles, modules, plugins, and more. Collections allow users to organize their Ansible content and share it more easily, making it simpler to maintain and reuse.

Key Features of Ansible Collections:

Modularity: Collections break down Ansible content into modular components that can be independently developed, tested, and maintained.

Distribution: Collections can be distributed via Ansible Galaxy or private repositories, enabling easy sharing within teams or the wider Ansible community.

Versioning: Collections support versioning, allowing users to specify and depend on specific versions of a collection. How to Create and Use Collections in Your Projects

Creating and using Ansible Collections involves a few key steps. Here’s a guide to get you started:

1. Setting Up Your Collection

To create a new collection, you can use the ansible-galaxy command-line tool:

ansible-galaxy collection init my_namespace.my_collection

This command sets up a basic directory structure for your collection:

my_namespace/

└── my_collection/

├── docs/

├── plugins/

│ ├── modules/

│ ├── inventory/

│ └── ...

├── roles/

├── playbooks/

├── README.md

└── galaxy.yml

2. Adding Content to Your Collection

Populate your collection with the necessary content. For example, you can add roles, modules, and plugins under the respective directories. Update the galaxy.yml file with metadata about your collection.

3. Building and Publishing Your Collection

Once your collection is ready, you can build it using the following command:

ansible-galaxy collection build

This command creates a tarball of your collection, which you can then publish to Ansible Galaxy or a private repository:

ansible-galaxy collection publish my_namespace-my_collection-1.0.0.tar.gz

4. Using Collections in Your Projects

To use a collection in your Ansible project, specify it in your requirements.yml file:

collections:

- name: my_namespace.my_collection

version: 1.0.0

Then, install the collection using:

ansible-galaxy collection install -r requirements.yml

You can now use the content from the collection in your playbooks:--- - name: Example Playbook hosts: localhost tasks: - name: Use a module from the collection my_namespace.my_collection.my_module: param: value

Popular Collections and Their Use Cases

Here are some popular Ansible Collections and how they can be used:

1. community.general

Description: A collection of modules, plugins, and roles that are not tied to any specific provider or technology.

Use Cases: General-purpose tasks like file manipulation, network configuration, and user management.

2. amazon.aws

Description: Provides modules and plugins for managing AWS resources.

Use Cases: Automating AWS infrastructure, such as EC2 instances, S3 buckets, and RDS databases.

3. ansible.posix

Description: A collection of modules for managing POSIX systems.

Use Cases: Tasks specific to Unix-like systems, such as managing users, groups, and file systems.

4. cisco.ios

Description: Contains modules and plugins for automating Cisco IOS devices.

Use Cases: Network automation for Cisco routers and switches, including configuration management and backup.

5. kubernetes.core

Description: Provides modules for managing Kubernetes resources.

Use Cases: Deploying and managing Kubernetes applications, services, and configurations.

Conclusion

Ansible Collections significantly enhance the modularity, distribution, and reusability of Ansible content. By understanding how to create and use collections, you can streamline your automation workflows and share your work with others more effectively. Explore popular collections to leverage existing solutions and extend Ansible’s capabilities in your projects.

For more details click www.qcsdclabs.com

[full-stack1]

Certainly! Let’s explore how to build a full-stack application using Node.js. In this comprehensive guide, we’ll cover the essential components and steps involved in creating a full-stack web application.

Building a Full-Stack Application with Node.js, Express, and MongoDB

1. Node.js: The Backbone of Our Application

Node.js is a runtime environment that allows us to run JavaScript on the server-side.

It’s built on Chrome’s V8 JavaScript engine and uses an event-driven, non-blocking I/O model, making it lightweight and efficient.

Node.js serves as the backbone of our application, providing the environment in which our server-side code will run.

2. Express.js: Simplifying Server-Side Development

Express.js is a minimal and flexible Node.js web application framework.

It provides a robust set of features for building web and mobile applications.

With Express.js, we can:

Set up middlewares to respond to HTTP requests.

Define routing rules.

Add additional features like template engines.

3. MongoDB: Storing Our Data

MongoDB is a document-oriented database program.

It uses JSON-like documents with optional schemas and is known for its flexibility and scalability.

We’ll use MongoDB to store our application’s data in an accessible and writable format.

Building Our Full-Stack Application: A Step-by-Step Guide

Setting Up the Environment:

Install Node.js:sudo apt install nodejs

Initialize a new Node.js project:mkdir myapp && cd myapp npm init -y

Install Express.js:npm install express

Creating the Server:

Create a basic Express server:const express = require('express'); const app = express(); const port = 3000; app.get('/', (req, res) => { res.send('Hello World!'); }); app.listen(port, () => { console.log(`Server running at http://localhost:${port}`); });

Defining Routes:

Define routes for different parts of our application:app.get('/user', (req, res) => { res.send('User Page'); });

Connecting to MongoDB:

Use Mongoose (a MongoDB object modeling tool) to connect to MongoDB and handle data storage.

Remember, this is just the beginning! Full-stack development involves frontend (client-side) work as well. You can use React, Angular, or other frontend libraries to build the user interface and connect it to your backend (Node.js and Express).

Feel free to explore more about each component and dive deeper into building your full-stack application! 😊 12

[javafullstackdev]

Spring Security Using Facebook Authorization: A Comprehensive Guide

In today's digital landscape, integrating third-party login mechanisms into applications has become a standard practice. It enhances user experience by allowing users to log in with their existing social media accounts. In this blog post, we will walk through the process of integrating Facebook authorization into a Spring Boot application using Spring Security.

Table of Contents

Introduction

Prerequisites

Setting Up Facebook Developer Account

Creating a Spring Boot Application

Configuring Spring Security for OAuth2 Login

Handling Facebook User Data

Testing the Integration

Conclusion

1. Introduction

OAuth2 is an open standard for access delegation, commonly used for token-based authentication. Facebook, among other social media platforms, supports OAuth2, making it possible to integrate Facebook login into your Spring Boot application.

2. Prerequisites

Before we start, ensure you have the following:

JDK 11 or later

Maven

An IDE (e.g., IntelliJ IDEA or Eclipse)

A Facebook Developer account

3. Setting Up Facebook Developer Account

To use Facebook login, you need to create an app on the Facebook Developer portal:

Go to the Facebook Developer website and log in.

Click on "My Apps" and then "Create App."

Choose an app type (e.g., "For Everything Else") and provide the required details.

Once the app is created, go to "Settings" > "Basic" and note down the App ID and App Secret.

Add a product, select "Facebook Login," and configure the Valid OAuth Redirect URIs to http://localhost:8080/login/oauth2/code/facebook.

4. Creating a Spring Boot Application

Create a new Spring Boot project with the necessary dependencies. You can use Spring Initializr or add the dependencies manually to your pom.xml.

Dependencies

<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-oauth2-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> </dependencies>

5. Configuring Spring Security for OAuth2 Login

Next, configure Spring Security to use Facebook for OAuth2 login.

application.properties

Add your Facebook app credentials to src/main/resources/application.properties.spring.security.oauth2.client.registration.facebook.client-id=YOUR_FACEBOOK_APP_ID spring.security.oauth2.client.registration.facebook.client-secret=YOUR_FACEBOOK_APP_SECRET spring.security.oauth2.client.registration.facebook.redirect-uri-template={baseUrl}/login/oauth2/code/{registrationId} spring.security.oauth2.client.registration.facebook.scope=email,public_profile spring.security.oauth2.client.registration.facebook.client-name=Facebook spring.security.oauth2.client.registration.facebook.authorization-grant-type=authorization_code spring.security.oauth2.client.provider.facebook.authorization-uri=https://www.facebook.com/v11.0/dialog/oauth spring.security.oauth2.client.provider.facebook.token-uri=https://graph.facebook.com/v11.0/oauth/access_token spring.security.oauth2.client.provider.facebook.user-info-uri=https://graph.facebook.com/me?fields=id,name,email spring.security.oauth2.client.provider.facebook.user-name-attribute=id

Security Configuration

Create a security configuration class to handle the OAuth2 login.import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserService; import org.springframework.security.oauth2.client.userinfo.DefaultOAuth2UserService; import org.springframework.security.oauth2.client.userinfo.OAuth2UserService; import org.springframework.security.oauth2.core.oidc.user.OidcUser; import org.springframework.security.oauth2.core.user.OAuth2User; import org.springframework.security.web.authentication.SimpleUrlAuthenticationFailureHandler; @Configuration @EnableWebSecurity public class SecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http .authorizeRequests(authorizeRequests -> authorizeRequests .antMatchers("/", "/error", "/webjars/**").permitAll() .anyRequest().authenticated() ) .oauth2Login(oauth2Login -> oauth2Login .loginPage("/login") .userInfoEndpoint(userInfoEndpoint -> userInfoEndpoint .oidcUserService(this.oidcUserService()) .userService(this.oAuth2UserService()) ) .failureHandler(new SimpleUrlAuthenticationFailureHandler()) ); } private OAuth2UserService<OidcUserRequest, OidcUser> oidcUserService() { final OidcUserService delegate = new OidcUserService(); return (userRequest) -> { OidcUser oidcUser = delegate.loadUser(userRequest); // Custom logic here return oidcUser; }; } private OAuth2UserService<OAuth2UserRequest, OAuth2User> oAuth2UserService() { final DefaultOAuth2UserService delegate = new DefaultOAuth2UserService(); return (userRequest) -> { OAuth2User oAuth2User = delegate.loadUser(userRequest); // Custom logic here return oAuth2User; }; } }

6. Handling Facebook User Data

After a successful login, you might want to handle and display user data.

Custom User Service

Create a custom service to process user details.import org.springframework.security.oauth2.core.user.OAuth2User; import org.springframework.security.oauth2.core.user.OAuth2UserAuthority; import org.springframework.security.oauth2.client.userinfo.OAuth2UserService; import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserService; import org.springframework.security.oauth2.core.oidc.user.OidcUser; import org.springframework.security.oauth2.client.userinfo.DefaultOAuth2UserService; import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserRequest; import org.springframework.security.oauth2.client.userinfo.OAuth2UserRequest; import org.springframework.stereotype.Service; import java.util.Map; import java.util.Set; import java.util.HashMap; @Service public class CustomOAuth2UserService implements OAuth2UserService<OAuth2UserRequest, OAuth2User> { private final DefaultOAuth2UserService delegate = new DefaultOAuth2UserService(); @Override public OAuth2User loadUser(OAuth2UserRequest userRequest) { OAuth2User oAuth2User = delegate.loadUser(userRequest); Map<String, Object> attributes = new HashMap<>(oAuth2User.getAttributes()); // Additional processing of attributes if needed return oAuth2User; } }

Controller

Create a controller to handle login and display user info.import org.springframework.security.core.annotation.AuthenticationPrincipal; import org.springframework.security.oauth2.core.user.OAuth2User; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; @Controller public class LoginController { @GetMapping("/login") public String getLoginPage() { return "login"; } @GetMapping("/") public String getIndexPage(Model model, @AuthenticationPrincipal OAuth2User principal) { if (principal != null) { model.addAttribute("name", principal.getAttribute("name")); } return "index"; } }

Thymeleaf Templates

Create Thymeleaf templates for login and index pages.

src/main/resources/templates/login.html

<!DOCTYPE html> <html xmlns:th="http://www.thymeleaf.org"> <head> <title>Login</title> </head> <body> <h1>Login</h1> <a href="/oauth2/authorization/facebook">Login with Facebook</a> </body> </html>

src/main/resources/templates/index.html

<!DOCTYPE html> <html xmlns:th="http://www.thymeleaf.org"> <head> <title>Home</title> </head> <body> <h1>Home</h1> <div th:if="${name}"> <p>Welcome, <span th:text="${name}">User</span>!</p> </div> <div th:if="${!name}"> <p>Please <a href="/login">log in</a>.</p> </div> </body> </html>

7. Testing the Integration

Run your Spring Boot application and navigate to http://localhost:8080. Click on the "Login with Facebook" link and authenticate with your Facebook credentials. If everything is set up correctly, you should be redirected to the home page with your Facebook profile name displayed.

8. Conclusion

Integrating Facebook login into your Spring Boot application using Spring Security enhances user experience and leverages the power of OAuth2. With this setup, users can easily log in with their existing Facebook accounts, providing a seamless and secure authentication process.

By following this guide,

[this-week-in-rust]

This Week in Rust 544

Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @ThisWeekInRust on Twitter or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Updates from Rust Community

Foundation

Guest Blog: Attending CISA’s Open Source Software Security Summit

Newsletters

This Month in Rust OSDev: March 2024

Project/Tooling Updates

lilos v1.0 released

medium-to-markdown v0.1.1 : Convert your medium blogs easily into markdown files

Fluvio v0.11.6 release and project updates

venndb 0.4.0 - custom validators

Tantivy 0.22: Performance improvements, new aggregations and stability fixes

Announcing r3bl_terminal_async - build async interactive CLIs in Rust

[video] Demo + architecture overview of Ferrostar, a cross-platform turn-by-turn navigation SDK with a Rust core

Observations/Thoughts

The Rust Calling Convention We Deserve

Sized, DynSized, and Unsized

Coroutines and effects

Porting a cross-platform GUI application to Rust

Adventures In Rust: Bringing Exchange Support To Thunderbird

Rust Walkthroughs

Why SQLite Performance Tuning made Bencher 1200x Faster

drop, the destructor of Rust structs

Building with AWS S3 using Rust

Rust tokio task cancellation patterns

[video] Build with Naz - Published crate r3bl_terminal_async for building async interactive CLIs in Rust

[video] Trent Billington - Bevy ECS - Power tool for data oriented applications

[video] Building a procedural art generator

[audio] Isograph with Robert Balicki

Research

A Study of Undefined Behavior Across Foreign Function Boundaries in Rust Libraries

Rust Digger: Does size matter? The biggest crate is 450MB; More than 100 crates are over 50MB

Miscellaneous

GitHub Sponsor Rust developer David Tolnay

Learn how to write TCP servers using Rust's std::net module

RustFest Zürich 🇨 Talks announced

Crate of the Week

This week's crate is scandir, a high-performance file tree scanner.

Thanks to Marty B. for the self-suggestion!

Please submit your suggestions and votes for next week!

Call for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward:

No calls for testing were issued this week.

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!

Some of these tasks may also have mentors available, visit the task page for more information.

awesome-alternatives-in-rust - Add dqy alternative to dig

fluvio - When a topic is deleted, connected clients should have their connection closed

fluvio - MQTT Connector: Prefix auto generated Client ID to prevent connection drops

fluvio - Remove localhost from fluvio in favor of 127.0.0.1

If you are a Rust project owner and are looking for contributors, please submit tasks here.

CFP - Speakers

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

RustConf 2024 | Closes 2024-04-25 | Montreal, Canada | Event date: 2024-09-10

RustLab 2024 | Closes 2024-05-01 | Florence, Italy | Event date: 2024-11-09 - 2024-11-11

EuroRust 2024| Closes 2024-06-03 | Vienna, Austria & online | Event date: 2024-10-10

Scientific Computing in Rust 2024| Closes 2024-06-14 | online | Event date: 2024-07-17 - 2024-07-19

Conf42 Rustlang 2024 | Closes 2024-07-22 | online | Event date: 2024-08-22

If you are an event organizer hoping to expand the reach of your event, please submit a link to the submission website through a PR to TWiR.

Updates from the Rust Project

432 pull requests were merged in the last week

add simple async drop glue generation

llvm backend: Prevent creating the same Instance::mono multiple times

static_mut_refs: use raw pointers to remove the remaining FIXME

add a lower bound check to unicode-table-generator output

add an opt-in to store incoming edges in VecGraph + misc

add llvm-bitcode-linker to build manifest

allow workproducts without object files

at debuginfo=0, don't inline debuginfo when inlining

correctly change type when adding adjustments on top of NeverToAny

coverage: branch coverage tests for lazy boolean operators

coverage: prepare for improved branch coverage

delay interning errors to after validation

delay span bug when Self kw resolves to DefKind::{Mod,Trait}

don't ICE for kind mismatches during error rendering

don't ascend into parent bodies when collecting stmts for possible return suggestion

don't error on subtyping of equal types

don't inline integer literals when they overflow - new attempt

don't repeatedly duplicate TAIT lifetimes for each subsequently nested TAIT

fix ICE in eval_body_using_ecx

fix ICE when there is a non-Unicode entry in the incremental crate directory

fix capturing duplicated lifetimes via parent in precise_captures (impl use<'...>)

fix normalizing in different ParamEnvs with the same InferCtxt

fix trait solver overflow with non_local_definitions lint

flip spans for precise capturing syntax not capturing a ty/const param, and for implicit captures of lifetime params

give a name to each distinct manipulation of pretty-printer FixupContext

ignore -C strip on MSVC

implement Modified Condition/Decision Coverage

implement PROBLEMATIC_CONSTS generalization

implement syntax for impl Trait to specify its captures explicitly (feature(precise_capturing))

improve ICE message for forbidden dep-graph reads

interpret: pass MemoryKind to adjust_alloc_base_pointer

interpret: pass MemoryKind to before_memory_deallocation

interpret: use ScalarInt for bin-ops; avoid PartialOrd for ScalarInt

introduce perma-unstable wasm-c-abi flag

let inherent associated types constrain opaque types during projection

make suggest_deref_closure_return more idiomatic/easier to understand

make thir_tree and thir_flat into hooks

make the comments for ReturnDest variants doc comments

match ergonomics 2024: Implement eat-one-layer

match ergonomics 2024: mut doesn't reset binding mode

match hyphen in multi-revision comment matchers

opaque types have no namespace

outline default query and hook provider function implementations

prefer identity equality over equating types during coercion

print note with closure signature on type mismatch

properly handle emojis as literal prefix in macros

remove default_hidden_visibility: false from wasm targets

remove uneeded clones now that TrustedStep implies Copy

silence some follow-up errors on trait impls in case the trait has conflicting or otherwise incoherent impls

simplify shallow resolver to just fold ty/consts

stop taking ParamTy/ParamConst/EarlyParamRegion/AliasTy by ref

subtype predicates only exist on inference types, so we can allow them to register opaque types within them

tell LLVM Vec::len is invariant across growth

use raw-dylib for Windows synchronization functions

refactor clippy in bootstrap

when suggesting RUST_BACKTRACE=1, add a special note for Miri's env var isolation

miri: data_race: make the release/acquire API more clear

miri: no_std works on Windows now

miri: add localtime_r shim

miri: address reuse improvements and fixes

miri: deadlock: show backtrace for all threads

miri: directly call handle_alloc_error

miri: implement support for __rust_alloc_error_handler

miri: make realloc with a size of zero fail

miri: move read_byte_slice to general helpers file, next to read_c_str

miri: threads: keep track of why we are blocked, and sanity-check that when waking up

Box::into_raw: make Miri understand that this is a box-to-raw cast

PatRangeBoundary::compare_with: also add a fast-path for signed integers

codegen ZSTs without an allocation

stabilize Wasm target features that are in phase 4 and 5

stabilize const_io_structs

stabilize checking of cfgs at compile-time: --check-cfg option

stabilize generic NonZero

make checked ops emit unchecked LLVM operations where feasible

improve std::fs::Metadata Debug representation

fix negating f16 and f128 constants

force exhaustion in iter::ArrayChunks::into_remainder

checked_ilog: improve performance

add an intrinsic for ptr::from_raw_parts(_mut)

fix: make str::from_raw_parts_mut mut

use queue-based RwLock on more platforms

add support for Arm64EC to the standard library

codegen_gcc: fix PassMode::Indirect with params

codegen_gcc: fix check for main function already declared

codegen_gcc: fix panic when calling get_fn for a variable

codegen_gcc: fix passing custom CG_RUSTFLAGS when building sysroot

codegen_gcc: implement more type kinds

cargo install: including Locking message

cargo resolver: add default Edition2024 to resolver v3

cargo resolver: add v3 resolver for MSRV-aware resolving

cargo credential: trim newlines in tokens from stdin

cargo msrv: error, rather than panic, on rust-version 'x'

cargo msrv: put MSRV-aware resolver behind a config

cargo toml: don't crash on parse errors that point to multi-byte character

cargo toml: disallow source-less dependencies

cargo toml: error on [project] in Edition 2024

cargo toml: report _fied variants (e.g. dev_dependencies) as deprecated

cargo: fix 'cargo build' fails when list_files() with gix is triggered

rustdoc: always display stability version even if it's the same as the containing item

rustdoc: fix copy path button

rustdoc: support type '/' to search

rustdoc-search: fix description on aliases in results

rustdoc-search: single result for items with multiple paths

clippy: threadlocal_initializer_can_be_made_const will not trigger for unreachable initializers

clippy: arithmetic_side_effects fix false negative on +=

clippy: ptr_as_ptr: fix duplicate diagnostics

clippy: emit the needless_pass_by_ref_mut lint on self arguments as well

clippy: fix is_test_module_or_function

clippy: reduce single_char_pattern to only lint on ascii chars

clippy: rework interior mutability detection

clippy: the multiple_unsafe_ops_per_block test needs asm!

rust-analyzer: cargo script mvp

rust-analyzer: add convert From to TryFrom assist

rust-analyzer: allow rust files to be used linkedProjects

rust-analyzer: VFS should not walk circular symlinks

rust-analyzer: handle escaped chars in doc comments

rust-analyzer: replace Just the variable name in Unused Variable Diagnostic Fix

rust-analyzer: implement BeginPanic handling in const eval

rust-analyzer: make test harness arguments configurable and not --nocapture

rust-analyzer: render matched macro arm on hover of macro calls

rust-analyzer: try to generate more meaningful names in json converter

Rust Compiler Performance Triage

A week dominated by small mixed changes to perf with improvements slightly outweighing regressions. There were no pure regressions, and many of the mixed perf results were deemed worth it for their potential improvements to runtime performance through further optimization from LLVM.

Triage done by @rylev. Revision range: ccfcd950..a77f76e2

Summary:

(instructions:u) mean range count Regressions ❌ (primary) 0.4% [0.2%, 1.8%] 57 Regressions ❌ (secondary) 0.4% [0.2%, 1.9%] 26 Improvements ✅ (primary) -0.8% [-3.4%, -0.2%] 50 Improvements ✅ (secondary) -0.6% [-1.9%, -0.1%] 32 All ❌✅ (primary) -0.2% [-3.4%, 1.8%] 107

0 Regressions, 5 Improvements, 6 Mixed; 2 of them in rollups 62 artifact comparisons made in total

Full report here

Call for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward:

No calls for testing were issued this week.

RFCs

Rust

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:

No RFCs were approved this week.

Final Comment Period

Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.

RFCs

[disposition: merge] experimental project goal program for 2024 H2

Tracking Issues & PRs

Rust

[disposition: merge] Tracking Issue for std::path::absolute

[disposition: merge] Tracking Issue for convenience methods on NonNull

[disposition: merge] Inline more svg images into CSS

[disposition: merge] Edition 2024: Make ! fall back to !

[disposition: merge] static_mut_refs: Should the lint cover hidden references?

Cargo

[disposition: merge] fix(toml): Warn, rather than fail publish, if a target is excluded

New and Updated RFCs

[new] experimental project goal program for 2024 H2

Upcoming Events

Rusty Events between 2024-04-24 - 2024-05-22 🦀

Virtual

2024-04-24 | Virtual + In Person (Prague, CZ) | Rust Czech Republic

#2: Making Safe Rust Safer (Pavel Šimerda)

2024-04-25 | Virtual (Berlin, DE) | OpenTechSchool Berlin + Rust Berlin

Rust Hack and Learn | Mirror: Rust Hack n Learn Meetup

2024-04-30 | Virtual (Dallas, TX, US) | Dallas Rust

Last Tuesday

2024-05-01 | Virtual (Cardiff, UK) | Rust and C++ Cardiff

Rust for Rustaceans Book Club: Chapter 5 - Project Structure

2024-05-01 | Virtual (Indianapolis, IN, US) | Indy Rust

Indy.rs - with Social Distancing

2024-05-02 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup

Crafting Interpreters in Rust Collaboratively

2024-05-07 | Virtual (Buffalo, NY) | Buffalo Rust Meetup

Buffalo Rust User Group

2024-05-09 | Virtual (Berlin, DE) | OpenTechSchool Berlin + Rust Berlin

Rust Hack and Learn | Mirror: Rust Hack n Learn Meetup

2024-05-09 | Virtual (Israel) | Rust in Israel

Rust at Microsoft, Tel Aviv - Are we embedded yet?

2024-05-09 | Virtual (Nuremberg/Nürnberg, DE) | Rust Nuremberg

Rust Nürnberg online

2024-05-14 | Virtual (Dallas, TX, US) | Dallas Rust

Second Tuesday

2024-05-14 | Virtual (Halifax, NS, CA) | Rust Halifax

Rust&Tell - Halifax

2024-05-14 | Virtual + In-Person (München/Munich, DE) | Rust Munich

Rust Munich 2024 / 1 - hybrid (Rescheduled)

2024-05-15 | Virtual (Vancouver, BC, CA) | Vancouver Rust

Rust Study/Hack/Hang-out

2024-05-16 | Virtual (Charlottesville, VA, US) | Charlottesville Rust Meetup

Crafting Interpreters in Rust Collaboratively

2024-05-21 | Virtual (Washington, DC, US) | Rust DC

Mid-month Rustful—forensic parsing via Artemis

Africa

2024-05-04 | Kampala, UG | Rust Circle Kampala

Rust Circle Meetup

Asia

2024-05-11 | Bangalore, IN | Rust Bangalore

May 2024 Rustacean meetup

Europe

2024-04-24 | Virtual + In Person (Prague, CZ) | Rust Czech Republic

#2: Making Safe Rust Safer (Pavel Šimerda)

2024-04-25 | Aarhus, DK | Rust Aarhus

Talk Night at MFT Energy

2024-04-25 | Berlin, DE | Rust Berlin

Rust and Tell - TBD

2024-04-25 | København/Copenhagen, DK | Copenhagen Rust Community

Rust meetup #46 sponsored by Nine A/S

2024-04-25 | Vienna, AT | Rust Vienna

Rust Vienna x Python User Group - April

2024-04-27 | Basel, CH | Rust Basel

Fullstack Rust - Workshop #2 (Register by 23 April)

2024-04-27 | Stockholm, SE | Stockholm Rust

Ferris' Fika Forum #2

2024-04-30 | Budapest, HU | Budapest Rust Meetup Group

Rust Meetup Budapest 2

2024-04-30 | Salzburg, AT | Rust Salzburg

[Rust Salzburg meetup]: 6:30pm - CCC Salzburg, 1. OG, ArgeKultur, Ulrike-Gschwandtner-Straße 5, 5020 Salzburg

2024-05-01 | Köln/Cologne, DE | Rust Cologne

This Month in Rust, May

2024-05-01 | Utrecht, NL | NL-RSE Community

NL-RSE RUST meetup

2024-05-06 | Delft, NL | GOSIM

GOSIM Europe 2024

2024-05-07 & 2024-05-08 | Delft, NL | RustNL

RustNL 2024

2024-05-08 | Cambridge, UK | Cambridge Rust Meetup

Monthly Rust Meetup

2024-05-09 | Gdańsk, PL | Rust Gdansk

Rust Gdansk Meetup #2

2024-05-14 | Virtual + In-Person (München/Munich, DE) | Rust Munich

Rust Munich 2024 / 1 - hybrid (Rescheduled)

2024-05-14 | Prague, CZ | Rust Prague

Rust Meetup Prague (May 2024)

2024-05-21 | Aarhus, DK | Rust Aarhus

Hack Night

2024-05-21 | Zurich, CH | Rust Zurich

Save the date - Mai Meetup

North America

2024-04-24 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

2024-04-25 | Nashville, TN, US | Music City Rust Developers

Music City Rust Developers - Async Rust on Embedded

2024-04-26 | Boston, MA, US | Boston Rust Meetup

North End Rust Lunch, Apr 26

2024-05-04 | Cambridge, MA, US | Boston Rust Meetup

Kendall Rust Lunch, May 4

2024-05-09 | Spokane, WA, US | Spokane Rust

Monthly Meetup: Topic TBD!

2024-05-12 | Brookline, MA, US | Boston Rust Meetup

Coolidge Corner Brookline Rust Lunch, May 12

2024-05-16 | Seattle, WA, US | Seattle Rust User Group

Seattle Rust User Group Meetup

2024-05-20 | Somerville, MA, US | Boston Rust Meetup

Ball Square Rust Lunch, May 20

2024-05-21 | San Francisco, CA, US | San Francisco Rust Study Group

Rust Hacking in Person

2024-05-22 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

Oceania

2024-04-30 | Auckland, NZ | Rust AKL

Rust AKL: Why Rust? Convince Me!

2024-04-30 | Canberra, ACT, AU | Canberra Rust User Group

CRUG April Meetup: Generics and Traits

If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

The learning curve for Rust is relatively steep compared to other languages, but once you climb it you'll never look down.

– BD103 on Mastodon

Thanks to BD103 for the self-suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, andrewpollack, U007D, kolharsam, joelmarcey, mariannegoldin, bennyvasquez.

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

[clatterbane]

I appear to be having some brain glitching getting in my way here tonight. And, I know that I've got some mutuals who no doubt know way more about this subject than I do. So, I thought I would go ahead and ask for some guidance over here, partly because y'all are likely to be nicer than average about it.

So, what I am trying to accomplish atm: finally get bbolli's tumblr-utils up and running locally, primarily to run personal backups. I am familiar enough with python scripting. What I have fuck all experience with thus far is OAuth.

I do know that I need to obtain my own API key, roughly how to do this, and where to paste that info in.

My major practical level wtf right at the moment is the same as this person was asking about, over 10 years ago:

That is the most relevant thing I could readily find searching. And there was nothing of direct help in replies.

On the registration page, Tumblr is asking for a couple of mandatory fields that I am not sure how to fill in, where the "application" that needs to call the API is a few personal scripts running entirely on localhost.

For that matter, I was not sure what to put in under an "Application Website:" URL, but figured that probably made less difference. It's not like this is for public consumption whatsoever, so it got a placeholder.

The only thing I could find about this in tumblr-utils documentation:

Get your personal Tumblr API key. Before June 2020, the author's API key was distributed with the source code, the then Tumblr denied access using this key. Now, each user needs to get their own key at https://www.tumblr.com/oauth/apps. Follow the instructions there; most values entered don't matter. The API key must then be copied between the single quotes in the source code at around line 105 (the line starts with API_KEY = ).

So, does it actually matter what goes into those particular fields in order to get the API key? Or should I just fill in some placeholder URLs for this particular use case? Do these instead need to refer to some script-relevant locations on localhost?

[ETA: From what I understand, the CALLBACK_URL is indeed intended so that Tumblr can call the application back during registration. I am just not sure how this is supposed to work with a local script. Same thing with the OAuth2 redirect URL called for there. What, if anything, would that be? Is it relevant here?]

As is no doubt clear by now, I have zero prior experience in this department. Feeling pretty dumb right now. And I really would appreciate it if anyone with more knowledge could offer some practical advice here.

Right now, I should probably take a little refueling break.

[webappinsights]

How to Design and Build Scalable Microservices in Node.js

Microservices are becoming the go-to architecture for modern applications, and if you're just starting out with backend development, Node.js is a great place to begin. Known for its speed and lightweight nature, Node.js is an ideal choice for building services that need to grow and scale over time. If you're exploring Node.js web development, understanding how to create scalable microservices is a vital skill.

In this article, we’ll walk you through what microservices are, why they’re useful, and how you can design and build them using Node.js- even if you're new to backend programming.

What Are Microservices?

A microservices architecture breaks down a large application into smaller, independent services that each perform a specific task. These services communicate with each other through APIs, usually over HTTP or messaging queues.

For example, in an e-commerce platform:

One microservice might handle user authentication

Another handles orders

A third manages product listings

This approach is more flexible and maintainable than a traditional monolithic application, where everything is packed into one large codebase.

Why Choose Node.js for Microservices?

There are several reasons developers choose Node.js for microservices:

Fast and non-blocking I/O: Node.js handles multiple requests efficiently without waiting for previous ones to finish.

Lightweight and modular: Node’s package manager (npm) offers thousands of ready-to-use modules.

Easy to scale: Built-in tools like clustering and horizontal scaling make it easier to grow your services.

JavaScript everywhere: You can use the same language on both the frontend and backend.

Whether you're building your first API or planning a bigger system, many startups and enterprises rely on professional Node.js Development Services to set up clean and efficient architectures from the start.

Step-by-Step: Building Scalable Microservices in Node.js

Let’s break it down into manageable steps.

1. Define Your Services Clearly

Start by identifying the business functions of your app. Each microservice should be responsible for one feature or domain.

For example:

User Service for authentication

Order Service for handling transactions

Inventory Service for managing products

Keep each service focused. This improves performance and makes your app easier to maintain or scale.

2. Set Up a Basic Node.js Service

Here’s a very simple example using Express.js:

mkdir user-service cd user-service npm init -y npm install express

Create a server.js file:

jsCopy

const express = require('express'); const app = express(); app.get('/users', (req, res) => { res.json([{ id: 1, name: 'Alice' }]); }); app.listen(3000, () => { console.log('User service is running on port 3000'); });

This is your first microservice.

3. Use a Gateway or API Layer

In a microservices setup, each service has its own endpoint. But to avoid confusing your users with multiple URLs, you can use an API Gateway like Express Gateway, Kong, or Nginx to route traffic to the correct service.

The gateway can also handle:

Authentication

Rate limiting

Logging

Version control

If you want to save time and ensure best practices, it’s often a good idea to hire Node.js developers who already understand how to configure gateways and secure your APIs effectively.

4. Implement Inter-Service Communication

Microservices often need to talk to each other. This is done through APIs (HTTP) or message brokers (like RabbitMQ or Kafka).

In a simple HTTP example:

jsCopy

// order-service calls user-service const axios = require('axios'); axios.get('http://localhost:3000/users') .then(res => console.log(res.data));

As your system grows, switching to messaging queues improves performance and decouples services even further.

5. Use Docker to Containerize Your Services

To make your services easy to deploy, run, and scale, containerize them using Docker.

Here’s a simple Dockerfile for a Node.js service:

dockerfileCopy

FROM node:18 WORKDIR /app COPY . . RUN npm install CMD ["node", "server.js"]

This makes your service portable and predictable—key traits for scaling.

Most Node.js development companies containerize microservices and use orchestration tools like Docker Compose or Kubernetes to manage multiple services efficiently.

6. Add Monitoring and Logging

Don’t wait until something breaks. Add monitoring early.

Use tools like:

Winston or Morgan for logging

Prometheus and Grafana for monitoring performance

Logstash or Elasticsearch for log storage and search

This visibility helps you debug faster and scale more reliably.

7. Plan for Scaling

Node.js can scale vertically (more CPU/threads) and horizontally (more instances). Use built-in clustering or cloud platforms (like AWS ECS, Azure App Service, or Google Cloud Run) to scale your services based on demand.

Scalability is where many teams turn to expert Node.js Development Services to architect fault-tolerant and load-balanced systems that handle high traffic smoothly.

Tips for Beginners

Here are a few tips to make your microservices journey easier:

Start with two services and expand gradually

Keep services stateless (no shared memory or sessions)

Use environment variables for configuration

Maintain separate codebases for each service

Write clear API documentation for each microservice

Building scalable microservices doesn’t mean building everything at once. Take it step by step.

When to Seek Help

When your app grows in complexity or you need to handle production-level traffic, it might be time to bring in professional help.

A reputable Node.js development company can support you with:

System design and architecture

API security and versioning

Testing and CI/CD pipelines

Cloud deployment and scaling strategies

Or, if you’re looking for temporary expertise, you can hire Node.js developers to join your team on a freelance or contract basis. They’ll help speed up development, review your code for best practices, and guide your technical decisions.

Final Thoughts

Designing scalable microservices in Node.js is not as hard as it sounds—especially if you take a modular, step-by-step approach. With the right structure and tools, you can build systems that are easier to manage, faster to deploy, and ready to grow.

Whether you're building your first microservice or planning to scale a business application, Node.js has the flexibility and performance to help you succeed.

And when you're ready to move faster and scale smarter, don’t hesitate to reach out to a reliable Node.js development company or hire Node.js developers who can bring your vision to life with confidence.

[pentesttestingcorp]

DNS Rebinding Attack in Symfony: Fix & Prevention Guide

DNS rebinding is a dangerous web vulnerability that can allow attackers to bypass same-origin policies and gain access to internal networks through a user's browser. In this blog post, we'll explore how DNS rebinding attacks work, why Symfony developers should be aware of them, and how to prevent these attacks using code examples and best practices.

🔍 For more cybersecurity insights, check out our blog: 👉 https://www.pentesttesting.com/blog/

🧨 What Is a DNS Rebinding Attack?

DNS rebinding exploits the trust a browser has in DNS responses. By tricking a victim's browser into connecting to internal services or private IP addresses using manipulated DNS responses, attackers can potentially access internal applications, steal data, or run commands.

In Symfony, if your application does not verify host headers properly or restricts access by IP, it could be vulnerable.

💣 How DNS Rebinding Works (Step-by-Step)

The attacker registers a domain (e.g., attacker.com).

The domain initially resolves to an external IP (e.g., their server).

The victim accesses attacker.com in their browser.

After the browser's DNS cache expires, the domain is rebound to a private IP like 127.0.0.1.

The attacker’s script running in the browser now makes requests to internal services or localhost.

🔐 Symfony DNS Rebinding Mitigation Strategies

Symfony has security components, but developers must implement additional safeguards. Here are key prevention techniques:

✅ 1. Validate Host Headers

Use Symfony’s Request::getHost() carefully. Always validate incoming host headers:

use Symfony\Component\HttpFoundation\Request; $request = Request::createFromGlobals(); $trustedHosts = ['yourdomain.com', 'www.yourdomain.com']; if (!in_array($request->getHost(), $trustedHosts)) { throw new \Exception("Untrusted Host Detected"); }

Or configure trusted hosts in config/packages/framework.yaml:

framework: trusted_hosts: ['^yourdomain\.com$', '^www\.yourdomain\.com$']

✅ This prevents the application from accepting forged Host headers.

✅ 2. Restrict Access to Internal IPs

Use a firewall or reverse proxy to block private IP ranges like 127.0.0.1 or 192.168.0.0/16. You can also block requests using Symfony middleware:

$clientIp = $_SERVER['REMOTE_ADDR']; if (preg_match('/^127\.|^192\.168\.|^10\./', $clientIp)) { throw new \Exception("Access from private IPs not allowed"); }

💡 Recommended: Test for Vulnerabilities with Our Free Tool

📸 Screenshot of our free Website Vulnerability Scanner tool homepage

Screenshot of the free tools webpage where you can access security assessment tools.

Before you assume your Symfony site is safe, run a full check using our Website Vulnerability Scanner.

It scans for:

DNS Rebinding vulnerabilities

Host Header injections

CORS misconfigurations

And more!

📸 Screenshot of a sample report to check Website Vulnerability

An Example of a vulnerability assessment report generated with our free tool, providing insights into possible vulnerabilities.

💼 Our Services for Developers and Agencies

Need professional help? We’ve got you covered:

🛠️ Web App Penetration Testing

Custom tests for DNS rebinding, XSS, SSRF, CSRF and more. 👉 https://www.pentesttesting.com/web-app-penetration-testing-services/

🤝 Partner with Us: Offer Security Services to Your Clients

White-label our penetration testing service for your agency. 👉 https://www.pentesttesting.com/offer-cybersecurity-service-to-your-client/

📰 Stay Ahead with Cybersecurity Trends

Don’t miss out on our weekly security tips, zero-day alerts, and threat breakdowns. 📬 Subscribe on LinkedIn: 👉 https://www.linkedin.com/build-relation/newsletter-follow?entityUrn=7327563980778995713

🧪 Bonus: DNS Rebinding Exploit Simulation Code

If you're a developer or security researcher, try this basic simulation.

// attacker.com/index.html setTimeout(() => { location.href = 'http://attacker.com/rebind'; }, 2000); // attacker.com/rebind redirects to internal IP via DNS manipulation fetch('http://127.0.0.1:8000/api/secret-data') .then(response => response.text()) .then(data => console.log("Leaked Data:", data)); Note: Use this only in a test lab environment.

📣 Final Thoughts

DNS rebinding might seem like a legacy attack, but it remains a real threat—especially for modern SPAs, IoT dashboards, or internal APIs running without proper controls.

Symfony developers should: ✅ Lock down host headers ✅ Block private IP access ✅ Use trusted domain whitelists ✅ Regularly scan their websites

Start today by scanning your site at: 🔗 https://free.pentesttesting.com/

Explore more at: 📘 Blog: https://www.pentesttesting.com/blog/

[fromdevcom]

Java Developer’s Cheat Sheet: 10 Handy Code Snippets for Real-World Problems Enterprise Java development often involves solving recurring challenges efficiently. Whether it's managing databases, handling exceptions, or working with large data, having practical code snippets handy can save time and reduce errors. Here are 10 essential Java snippets tailored for common enterprise scenarios. 1. Database Connection Pooling with HikariCP Efficient database connection management is crucial for performance in enterprise applications: HikariConfig config = new HikariConfig(); config.setJdbcUrl("jdbc:mysql://localhost:3306/mydb"); config.setUsername("user"); config.setPassword("password"); config.addDataSourceProperty("cachePrepStmts", "true"); config.addDataSourceProperty("prepStmtCacheSize", "250"); config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048"); HikariDataSource dataSource = new HikariDataSource(config); try (Connection conn = dataSource.getConnection()) PreparedStatement stmt = conn.prepareStatement("SELECT * FROM employees"); ResultSet rs = stmt.executeQuery(); while (rs.next()) System.out.println(rs.getString("name")); 2. Read and Write JSON Using Jackson JSON handling is ubiquitous in enterprise apps for APIs and configuration: ObjectMapper mapper = new ObjectMapper(); // Serialize object to JSON Employee emp = new Employee(1, "John Doe", "IT"); String jsonString = mapper.writeValueAsString(emp); System.out.println(jsonString); // Deserialize JSON to object Employee empFromJson = mapper.readValue(jsonString, Employee.class); System.out.println(empFromJson); 3. Centralized Exception Handling in Spring Boot Streamline error responses with a global exception handler: @RestControllerAdvice public class GlobalExceptionHandler @ExceptionHandler(EntityNotFoundException.class) public ResponseEntity handleEntityNotFound(EntityNotFoundException ex) return ResponseEntity.status(HttpStatus.NOT_FOUND).body(ex.getMessage()); @ExceptionHandler(Exception.class) public ResponseEntity handleGenericException(Exception ex) return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("An error occurred: " + ex.getMessage()); 4. Paginate Results Using JPA Pagination is vital for handling large datasets efficiently: Pageable pageable = PageRequest.of(0, 10, Sort.by("name").ascending()); Page employees = employeeRepository.findAll(pageable); employees.forEach(emp -> System.out.println(emp.getName())); 5. Encrypt and Decrypt Sensitive Data Secure sensitive information with AES encryption: KeyGenerator keyGen = KeyGenerator.getInstance("AES"); keyGen.init(128); SecretKey secretKey = keyGen.generateKey(); Cipher cipher = Cipher.getInstance("AES"); // Encrypt cipher.init(Cipher.ENCRYPT_MODE, secretKey); byte[] encrypted = cipher.doFinal("SensitiveData".getBytes()); System.out.println(Base64.getEncoder().encodeToString(encrypted)); // Decrypt cipher.init(Cipher.DECRYPT_MODE, secretKey); byte[] decrypted = cipher.doFinal(encrypted); System.out.println(new String(decrypted)); 6. Cache Data Using Ehcache Enhance performance by caching frequently accessed data: CacheManager cacheManager = CacheManagerBuilder.newCacheManagerBuilder() .withCache("preConfigured", CacheConfigurationBuilder.newCacheConfigurationBuilder(String.class, String.class, ResourcePoolsBuilder.heap(100))) .build(true); Cache cache = cacheManager.getCache("preConfigured", String.class, String.class); cache.put("key1", "value1"); System.out.println(cache.get("key1")); 7. Send Emails with JavaMail Automate email notifications using JavaMail: Properties props = new Properties(); props.put("mail.smtp.host", "smtp.example.com"); props.put("mail.smtp.port", "587"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.starttls.enable", "true"); Session session = Session.getInstance(props, new Authenticator()

protected PasswordAuthentication getPasswordAuthentication() return new PasswordAuthentication("user@example.com", "password"); ); Message message = new MimeMessage(session); message.setFrom(new InternetAddress("user@example.com")); message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("recipient@example.com")); message.setSubject("Test Email"); message.setText("This is a test email."); Transport.send(message); System.out.println("Email sent successfully"); 8. Handle Large Files with Streaming Process large files efficiently without loading them into memory: try (BufferedReader br = new BufferedReader(new FileReader("largefile.txt"))) String line; while ((line = br.readLine()) != null) System.out.println(line); catch (IOException e) e.printStackTrace(); 9. Generate UUIDs for Unique Identifiers Generate unique IDs for entities easily: String uuid = UUID.randomUUID().toString(); System.out.println("Generated UUID: " + uuid); 10. Retry Logic for Resilient API Calls Implement retry logic for unstable external services: RetryPolicy retryPolicy = new RetryPolicy() .handle(Exception.class) .withDelay(Duration.ofSeconds(2)) .withMaxRetries(3); Failsafe.with(retryPolicy).run(() -> // Your API call or operation System.out.println("Attempting operation..."); if (new Random().nextBoolean()) throw new RuntimeException("Simulated failure"); System.out.println("Operation succeeded"); ); Conclusion These practical Java code snippets address real-world enterprise development needs. Keep this cheat sheet handy to boost productivity, reduce repetitive tasks, and streamline your workflow. Whether it’s handling JSON, caching data, or securing sensitive information, these snippets are indispensable for any Java developer.

[promptlyspeedyandroid]

Node.js Tutorial for Web Developers

In today’s fast-paced development world, having the ability to build fast, scalable, and efficient web applications is a must for every web developer. Node.js has emerged as one of the most powerful tools for building server-side applications using JavaScript. If you're a web developer ready to expand your skills beyond front-end development, this Node.js Tutorial for Web Developers is the perfect place to start.

This blog will guide you through the core concepts of Node.js, from setting up your environment to building your first server, working with modules, handling requests, and connecting to databases. Whether you're transitioning from front-end development or just starting out with full-stack JavaScript, this tutorial will help you understand and apply Node.js effectively.

What is Node.js?

Node.js is an open-source, cross-platform runtime environment that allows you to run JavaScript on the server side. It is built on Chrome’s V8 JavaScript engine and is known for its non-blocking, event-driven architecture. Unlike traditional server-side languages like PHP or Python, Node.js enables full-stack development using a single language: JavaScript.

With Node.js, developers can build fast, scalable, and high-performance network applications, RESTful APIs, real-time chat apps, and much more.

Key features of Node.js include:

Asynchronous and event-driven

Highly scalable

Built-in package manager (npm)

Single programming language for full-stack development

Large and active community

Why Web Developers Should Learn Node.js

As a web developer, learning Node.js can greatly enhance your ability to build modern web applications. Here’s why:

JavaScript Everywhere: Use the same language on both the client and server sides.

Real-Time Capabilities: Ideal for building chat apps, streaming services, and real-time dashboards.

Performance: Node.js can handle thousands of simultaneous connections with high throughput.

Massive Ecosystem: Thousands of reusable libraries available through npm.

Career Opportunities: High demand for full-stack JavaScript developers in the job market.

Node.js Tutorial for Web Developers

Let’s get started with building a basic application using Node.js. Follow this step-by-step tutorial to understand the core concepts.

Step 1: Installing Node.js and npm

First, download and install Node.js from the official website: https://nodejs.org

Once installed, verify the installation:node -v npm -v

node is the runtime, and npm is the Node package manager used to install libraries and tools.

Step 2: Initialize Your Project

Create a new directory for your project:mkdir node-tutorial cd node-tutorial

Initialize a new Node.js project:npm init -y

This creates a package.json file to manage project dependencies.

Step 3: Create a Simple Web Server

Create a file named server.js and add the following code:const http = require('http'); const server = http.createServer((req, res) => { res.statusCode = 200; res.setHeader('Content-Type', 'text/plain'); res.end('Hello, Node.js!'); }); server.listen(3000, () => { console.log('Server running at http://localhost:3000/'); });

Run the server:node server.js

Visit http://localhost:3000 in your browser. You should see "Hello, Node.js!"

Step 4: Working with Modules

Node.js uses a modular system. You can create reusable code in separate files.

Create a file called greet.js:module.exports = function(name) { return `Hello, ${name}!`; };

Then use it in your server.js:const greet = require('./greet'); console.log(greet('Web Developer'));

This makes your code cleaner and easier to manage.

Step 5: Using Express.js

While you can use Node’s built-in modules, most developers use frameworks like Express.js to build APIs quickly.

Install Express:npm install express

Update server.js:const express = require('express'); const app = express(); app.get('/', (req, res) => { res.send('Welcome to the Node.js Tutorial!'); }); app.listen(3000, () => { console.log('Server running on http://localhost:3000'); });

Express simplifies route handling and improves readability.

Step 6: Handling POST Requests and JSON

Add support for POST requests and JSON:app.use(express.json()); app.post('/greet', (req, res) => { const name = req.body.name; res.send(`Hello, ${name}`); });

Use Postman or a frontend form to test sending data to the server.

Step 7: Connecting to a Database (MongoDB)

You can connect your Node.js app to MongoDB using Mongoose:npm install mongoose

Then connect to a database:const mongoose = require('mongoose'); mongoose.connect('mongodb://localhost:27017/nodetutorial', { useNewUrlParser: true, useUnifiedTopology: true, }) .then(() => console.log('MongoDB connected')) .catch(err => console.error(err));

You can now create schemas and interact with your database.

What You’ll Learn from This Node.js Tutorial

This Node.js Tutorial for Web Developers helps you:

Understand the Node.js runtime and architecture

Build your first web server

Use modules for modular code

Create APIs using Express.js

Handle HTTP requests and responses

Parse JSON data and work with forms

Connect to MongoDB and handle data persistence

Final Thoughts

Node.js is a must-learn tool for web developers aiming to become proficient in full-stack development. Its event-driven architecture, speed, and scalability make it a favorite for building real-time and data-intensive applications.

This Node.js tutorial for web developers provides a clear path to mastering back-end development using JavaScript. By learning and applying these concepts, you’ll gain the ability to build complete, dynamic, and modern web applications.

Ready to take your web development skills to the next level? Start coding with Node.js today!

[bliiot]

Enhancing ARMxy Performance with Nginx as a Reverse Proxy

Introduction

Nginx is a high-performance web server that also functions as a reverse proxy, load balancer, and caching server. It is widely used in cloud and edge computing environments due to its lightweight architecture and efficient handling of concurrent connections. By deploying Nginx on ARMxy Edge IoT Gateway, users can optimize data flow, enhance security, and efficiently manage industrial network traffic.

Why Use Nginx on ARMxy?

1. Reverse Proxying – Nginx acts as an intermediary, forwarding client requests to backend services running on ARMxy.

2. Load Balancing – Distributes traffic across multiple devices to prevent overload.

3. Security Hardening – Hides backend services and implements SSL encryption for secure communication.

4. Performance Optimization – Caching frequently accessed data reduces latency.

Setting Up Nginx as a Reverse Proxy on ARMxy

1. Install Nginx

On ARMxy’s Linux-based OS, update the package list and install Nginx:

sudo apt update sudo apt install nginx -y

Start and enable Nginx on boot:

sudo systemctl start nginx sudo systemctl enable nginx

2. Configure Nginx as a Reverse Proxy

Modify the default Nginx configuration to route incoming traffic to an internal service, such as a Node-RED dashboard running on port 1880:

sudo nano /etc/nginx/sites-available/default

Replace the default configuration with the following:

server { listen 80; server_name your_armxy_ip;

location / {

proxy_pass http://localhost:1880/;

proxy_set_header Host $host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

}

}

Save the file and restart Nginx:

sudo systemctl restart nginx

3. Enable SSL for Secure Communication

To secure the reverse proxy with HTTPS, install Certbot and configure SSL:

sudo apt install certbot python3-certbot-nginx -y sudo certbot --nginx -d your_domain

Follow the prompts to automatically configure SSL for your ARMxy gateway.

Use Case: Secure Edge Data Flow

In an industrial IoT setup, ARMxy collects data from field devices via Modbus, MQTT, or OPC UA, processes it locally using Node-RED or Dockerized applications, and sends it to cloud platforms. With Nginx, you can:

· Secure data transmission with HTTPS encryption.

�� Optimize API requests by caching responses.

· Balance traffic when multiple ARMxy devices are used in parallel.

Conclusion

Deploying Nginx as a reverse proxy on ARMxy enhances security, optimizes data handling, and ensures efficient communication between edge devices and cloud platforms. This setup is ideal for industrial automation, smart city applications, and IIoT networks requiring low latency, high availability, and secure remote access.

[phpgurukul12]

Company Visitors Management System using PHP and MySQL

Company Visitor Management system is a web-based technology that will revolutionize the way your company manages visitors. Visitor Management system is more important to security guards or security company. This web application provides a way to effectively control record & track company visitor traffic.

Click: https://phpgurukul.com/company-visitor-management-system-using-php-and-mysql/

Project Modules

In CVMS we use PHP and MySQL database. This is the project which keep records of visitors who visited in the company. CVMS has one module i.e admin.

Dashboard: In this sections, admin can briefly view how many visitors visited in a particular period.

Department: In this section, admin can add and delete the deparment.

Visitors: In this section, admin adds new visitors by filling their information in add visitors sections and also view and manage visitor’s records. Admin also put visitors out time in the manage records section.

Search: In this bar, admin can search a particular person by their name and phone number.

Reports: In this section admin can generate visitor’s reports between two dates.

Admin can also update his profile, change password and recover password.

How to run the Company Visitors Management System (CVMS) Project

1. Download the zip file

2. Extract the file and copy cvms folder

3.Paste inside root directory(for xampp xampp/htdocs, for wamp wamp/www, for lamp var/www/html)

4. Open PHPMyAdmin (http://localhost/phpmyadmin)

5. Create a database with name cvmsdb

6. Import cvmsdb.sql file(given inside the zip package in SQL file folder)

7.Run the script http://localhost/cvms (frontend)

Credential for admin panel :

Username: admin

Password: Test@123

PHP Gurukul

Welcome to PHPGurukul. We are a web development team striving our best to provide you with an unusual experience with PHP. Some technologies never fade, and PHP is one of them. From the time it has been introduced, the demand for PHP Projects and PHP developers is growing since 1994. We are here to make your PHP journey more exciting and useful.

Email: info@phpgurukul.com Website : https://phpgurukul.com

[georgemaries]

Step-by-Step DevSecOps Tutorial for Beginners

Introduction: Why DevSecOps Is More Than Just a Trend

In today's digital-first landscape, security can no longer be an afterthought. DevSecOps integrates security directly into the development pipeline, helping teams detect and fix vulnerabilities early. For beginners, understanding how to approach DevSecOps step by step is the key to mastering secure software development. Whether you're just starting out or preparing for the best DevSecOps certifications, this comprehensive tutorial walks you through practical, real-world steps with actionable examples.

This guide also explores essential tools, covers the DevSecOps training and certification landscape, shares tips on accessing DevSecOps certification free resources, and highlights paths like the Azure DevSecOps course.

What Is DevSecOps?

DevSecOps stands for Development, Security, and Operations. It promotes a cultural shift where security is integrated across the CI/CD pipeline, automating checks and balances during software development. The goal is to create a secure development lifecycle with fewer manual gates and faster releases.

Core Benefits

Early vulnerability detection

Automated security compliance

Reduced security risks in production

Improved collaboration among teams

Step-by-Step DevSecOps Tutorial for Beginners

Let’s dive into a beginner-friendly step-by-step guide to get hands-on with DevSecOps principles and practices.

Step 1: Understand the DevSecOps Mindset

Before using tools or frameworks, understand the shift in mindset:

Security is everyone's responsibility

Security practices should be automated

Frequent feedback loops are critical

Security policies should be codified (Policy as Code)

Tip: Enroll in DevSecOps training and certification programs to reinforce these principles early.

Step 2: Learn CI/CD Basics

DevSecOps is built upon CI/CD (Continuous Integration and Continuous Deployment). Get familiar with:

CI tools: Jenkins, GitHub Actions, GitLab CI

CD tools: Argo CD, Spinnaker, Azure DevOps

Hands-On:

# Sample GitHub Action workflow

name: CI

on: [push]

jobs:

  build:

    runs-on: ubuntu-latest

    steps:

      - uses: actions/checkout@v2

      - name: Install dependencies

        run: npm install

      - name: Run tests

        run: npm test

Step 3: Integrate Static Application Security Testing (SAST)

SAST scans source code for vulnerabilities.

Popular Tools:

SonarQube

Checkmarx

CodeQL (by GitHub)

Use Case: Integrate SonarQube into your Jenkins pipeline to detect hard-coded credentials or SQL injection flaws.

Code Snippet:

sonar-scanner \

  -Dsonar.projectKey=MyProject \

  -Dsonar.sources=. \

  -Dsonar.host.url=http://localhost:9000

Step 4: Set Up Dependency Scanning

Most modern applications use third-party libraries. Tools like OWASP Dependency-Check, Snyk, or WhiteSource can identify vulnerable dependencies.

Tip: Look for DevSecOps certification free labs that simulate dependency vulnerabilities.

Step 5: Implement Container Security Scanning

With containers becoming standard in deployments, scanning container images is essential.

Tools:

Trivy

Clair

Aqua Security

Sample Command Using Trivy:

trivy image nginx:latest

Step 6: Apply Dynamic Application Security Testing (DAST)

DAST tools test running applications for vulnerabilities.

Top Picks:

OWASP ZAP

Burp Suite

AppSpider

Real-World Example: Test an exposed login form on your dev environment using OWASP ZAP.

Step 7: Use Infrastructure as Code (IaC) Scanning

Misconfigurations in IaC can lead to major security flaws. Use tools to scan Terraform, CloudFormation, or ARM templates.

Popular Tools:

Chekhov

tfsec

Azure Bicep Linter (for Azure DevSecOps course users)

Step 8: Enforce Security Policies

Create policies that define security rules and ensure compliance.

Tools:

Open Policy Agent (OPA)

Kyverno

Use Case: Block deployments if a Kubernetes pod is missing a security context.

Best DevSecOps Certifications to Advance Your Career

If you’re serious about building a career in secure DevOps practices, here are some of the best DevSecOps certifications:

1. Certified DevSecOps Professional

Covers real-world DevSecOps use cases, including SAST, DAST, and container security.

2. AWS DevSecOps Certification

Ideal for cloud professionals securing AWS environments.

3. Azure DevSecOps Course Certification

Microsoft-specific course focusing on Azure security best practices.

4. GIAC Cloud Security Automation (GCSA)

Perfect for automation experts aiming to secure CI/CD pipelines.

Tip: Many DevSecOps certification free prep materials and labs are available online for self-paced learners.

DevSecOps Training Videos: Learn by Watching

Learning by watching real demos accelerates your understanding.

Topics Covered in Popular DevSecOps Training Videos:

How to secure a CI/CD pipeline

Real-world attack simulations

Vulnerability scanning workflows

Secure Dockerfile best practices

Visual Learning Tip: Platforms like H2K Infosys offer training sessions and tutorials that explain concepts step by step.

Accessing DevSecOps Tutorial PDF Resources

Sometimes having a reference guide helps. You can download DevSecOps tutorial PDF resources that summarize:

The DevSecOps lifecycle

Tools list by category (SAST, DAST, etc.)

Sample workflows and policies

These PDFs often accompany DevSecOps training and certification programs.

Azure DevSecOps Course: A Platform-Specific Approach

Microsoft Azure has strong native integration for DevSecOps.

What’s Covered in an Azure DevSecOps Course?

Security Center integrations with pipelines

Azure Key Vault secrets management

ARM Template and Bicep scanning

RBAC, Identity & Access Management

Example Toolchain: Azure DevOps + Microsoft Defender + Azure Policy + Terraform + Key Vault

Certification Note: Some Azure DevSecOps course modules count towards official Microsoft certifications.

Real-World Case Study: DevSecOps in a Banking Application

Problem: A fintech firm faced security vulnerabilities during nightly releases.

Solution: They implemented the following:

Jenkins-based CI/CD

SonarQube for code scanning

Snyk for dependency scanning

Trivy for container security

Azure Policy for enforcing RBAC

Results:

Reduced critical vulnerabilities by 72%

Release frequency increased from weekly to daily

Key Takeaways

DevSecOps integrates security into DevOps workflows.

Use SAST, DAST, IaC scanning, and policy enforcement.

Leverage DevSecOps training videos and tutorial PDFs for continuous learning.

Pursue the best DevSecOps certifications to boost your career.

Explore Azure DevSecOps course for platform-specific training.

Conclusion: Start Your DevSecOps Journey Now

Security is not optional, it's integral. Equip yourself with DevSecOps training and certification to stay ahead. For structured learning, consider top-rated programs like those offered by H2K Infosys.

Start your secure development journey today. Explore hands-on training with H2K Infosys and build job-ready DevSecOps skills.