ericzma

[ericzma]

Synchronizing Thunderbird Calendar with Apple iCloud Calendar

Thunderbird is a nice email client and calendar management software. iCloud calendar is the native calendar in Apple devices such as iPhone. So far there is no native support from Thunderbird to support iCloud calendar, excepting reading the read-only public iCloud calendars which has privacy concerns as long as lacks editing functionalities. But that does Read more

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[ericzma]

Setting Up SPF, DKIM and DMARC for Domain to Stop Email Sender Fraud

Email sender fraud is an annoying problem. Malicious email senders send spam emails with email senders that are under non-authorized domain names. This may affect the reputation of the domains used by the fraud sender. On another hand, lots emails will be rejected and reverted back, which causes lots additional work to the domain administrators. Read more

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[ericzma]

Running Ephemeral Docker Containers – Automatically Remove a Docker Container After Running It

Docker is a convenient tool to quick create containers from different Linux images. If we use the common way to start a docker container like docker run image bash, after the the process exists, the container is still stored there. That is, the docker container persists after it has exited. Sometimes, we would like to Read more

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[ericzma]

Configuring Fonts for Thunderbird snap to Display Fonts Nicely

snap is a software app bundle with dependencies included so that it can works in different Linux distributions. However, as most other software, snap has compatiblity issues. An app in the snap format is not 100% the same and compatible with the native version. One of the problem I find is that Thunderbird from snap Read more

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[ericzma]

Starting Page Number from the Second Page in MS Word

For document, we may use the first page as the title page. Then the page number 1 should start from the second page. In this post, we will look at how to make MS Word count the page number from the second page. That is, making word treat the second page as page number 1. Read more

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[ericzma]

GNONE 3 Screenshot Keyboard Shortcuts

GNONE 3 provides screenshot tools and utils and also provides keyboard shortcuts which are convenient and quick to use. With the GNOME 3 screenshot keyboard shortcuts, users can make screenshots without having to open the Screenshot app. In general, there are 2 major categories of screenshot shortcuts: those to save the screenshot as a file, […]

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[ericzma]

Linux Kernel 4.19.178 Release

This post summarizes Linux Kernel new features, bugfixes and changes in Linux 4.19.178 Release. Linux 4.19.178 Release contains 248 changes, patches or new features. In total, there are 239,909 lines of Linux source code changed/added in Linux 4.19.178 release compared to Linux 4.19 release. To view the source code of Linux 4.19.178 kernel release online, […]

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[ericzma]

Linux Kernel 4.14.223 Release

This post summarizes Linux Kernel new features, bugfixes and changes in Linux 4.14.223 Release. Linux 4.14.223 Release contains 176 changes, patches or new features. In total, there are 277,921 lines of Linux source code changed/added in Linux 4.14.223 release compared to Linux 4.14 release. To view the source code of Linux 4.14.223 kernel release online, […]

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[ericzma]

Linux Kernel 5.4.102 Release

This post summarizes Linux Kernel new features, bugfixes and changes in Linux 5.4.102 Release. Linux 5.4.102 Release contains 338 changes, patches or new features. In total, there are 160,715 lines of Linux source code changed/added in Linux 5.4.102 release compared to Linux 5.4 release. To view the source code of Linux 5.4.102 kernel release online, […]

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[ericzma]

Linux Kernel 4.9.60 Release

This post summarizes Linux Kernel new features, bugfixes and changes in Linux 4.9.60 Release. Linux 4.9.60 Release contains 24 changes, patches or new features. In total, there are 64,224 lines of Linux source code changed/added in Linux 4.9.60 release compared to Linux 4.9 release. To view the source code of Linux 4.9.60 kernel release online, […]

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[ericzma]

Linux Kernel: xt_quota: report initial quota value instead of current value to userspace

This change "xt_quota: report initial quota value instead of current value to userspace" (commit 49daf6a) in Linux kernel is authored by Changli Gao <xiaosuo [at] gmail.com> on Fri Jul 23 14:07:47 2010 +0200. Description of "xt_quota: report initial quota value instead of current value to userspace" The change "xt_quota: report initial quota value instead of […]

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[ericzma]

Reading JSON from URL in R

R is good at analyzing data. Many data are provided as JSON from RESTful APIs with an URL. R natively support many data format. For JSON, we can use some libraries. For reading JSON from URL, we can use the "jsonlite" package. In this example, we use an example of fetching BTC prices of last […]

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[ericzma]

Reading Excel xls/xlsx Files in R

Many useful data are stored in Excel xls or xlsx format. R is good at doing analysis on top of data. We would then importing the data to R by reading the xls/xlsx files in R. In this post, we check how to import data from Excel files to R programs. The package we will […]

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[ericzma]

3 Ways of .odt to .txt File Conversion in Command Line in Linux

The Open Document .odt files can contain rich formats for the content. However, some times a plain text file is more handy. We may convert .odt files to plain text files for such needs. In this post, we discuss 3 ways of how to convert .odt files to .text files in command line in Linux. […]

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[ericzma]

.docx/.doc to .odt File Conversion in Command Line in Linux

Word .docx and .doc files are common for documents commonly generated by MS Word software. We would like to convert them to the more open ODF Open Document .odt files for various cases. This can be done by GUI software tools. If we have a set of many .docx/.doc files, it will be handy if […]

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[ericzma]

Configure Eclipse to Show Git Revision Information in Editor

Eclipse can work well with Git. We discussed Configuring Eclipse to Highlight Changed Lines Compared to Git Commit before. Eclipse can also show the revision information for lines of code (from git blame) which is useful to understand why some lines are added in the context of previous revisions including the lines of code. Eclipse […]

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[ericzma]

Modify macOS Keyboard’s Right Option to Control for Mac Pro

For heavy Terminal/Shell/command line users, the Control key is a very frequently used key. However, in Mac Pro keyboard, there is only a single left Control key for some models. This cause quite some inconvenience. In this post, we will go through how to configure/remap the keys to "create" a right Control key. Remap keys […]

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