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How to Use Sar (System Activity Reporter)

  • Linux Journal; By Jeremy 'Jay' LaCroix (Posted by bob on Aug 14, 2022 5:54 PM EDT)
  • Story Type: Tutorial; Groups: Community, Linux
In this article, we're going to take a look at the System Activity Reporter, also known as the sar command. This command will help us with seeing a historical view of the performance of our server. You'll see examples of installing it, running it manually, and more. Let's get started!

Level up your HTML document with CSS

  •; By Jim Hall (Posted by bob on Aug 14, 2022 11:42 AM EDT)
  • Story Type: Tutorial; Groups: Linux, Mozilla
When you write documentation, whether that's for an open source project or a technical writing project, you should have two goals: The document should be written well, and the document should be easy to read. The first is addressed by clear writing skills and technical editing. The second can be addressed with a few simple changes to an HTML document.

A gentle introduction to HTML

  •; By Jim Hall (Posted by bob on Aug 14, 2022 7:19 AM EDT)
  • Story Type: Tutorial; Groups: Linux
I feel confident in claiming that HTML is the most widely used markup language ever. While other markup languages exist, including nroff and groff, LaTeX, and Markdown, no other markup language is as widespread as the Hyper Text Markup Language. HTML is the de facto language of the Web. First implemented in web browsers in 1994, the language continues to evolve. Y

MiniPC taps Ryzen 5 5600U and supports triple 4K displays

Supporting the Ryzen 5 5600U processor from AMD, the Aerofara TANK45 Mini PC is capable of running triple displays at 4K@60Hz. This Mini PC offers wireless internet support, one 2.4Gbps ethernet port and flexible storage. The Ryzen 5 5600 from the Cezanne U (Zen 3) generation which features 6-cores/12-threads and has a frequency ranging from 2300 […]

Rescuezilla 2.4 is here: Grab it before you need it

  • The Register; By Liam Proven (Posted by bob on Aug 14, 2022 2:56 AM EDT)
  • Story Type: News Story; Groups: Ubuntu
A fork of Redo Rescue that outdoes the original – and beats Clonezilla too. Version 2.4 of Rescuezilla - which describes itself as the "Swiss Army Knife of System Recovery," - is here and based on Ubuntu 22.04.…

Dealing with legacy issues around Red Hat crypto versions? Here's a fix

  • The Register; By Liam Proven (Posted by bob on Aug 13, 2022 10:33 PM EDT)
  • Story Type: News Story; Groups: Red Hat
RHEL SHA-ll speak unto RHEL… except from 9 to 6. If you're running a mixture of new and old RHEL versions, you may have problems SSHing from new to old. Luckily, someone has worked out a handy way around it.…

How to update Linux Mint to Mint 21

  • ZDNet | open-source RSS; By Steven J. Vaughan-Nichols (Posted by bob on Aug 13, 2022 2:09 PM EDT)
  • Story Type: Tutorial; Groups: Linux, Mint
It's not too hard to move from Linux Mint 20.3 to the long-term support of Linux Mint 21. But it's not a walk in the park, either.

Boeing joins the ELISA Project as a Premier Member to Strengthen its Commitment to Safety-Critical Applications

The ELISA (Enabling Linux in Safety Applications) Project announced that Boeing has joined as a Premier member, marking its commitment to Linux and its effective use in safety critical applications. The post Boeing joins the ELISA Project as a Premier Member to Strengthen its Commitment to Safety-Critical Applications appeared first on

Writing project documentation in HTML

Documentation is an important part of any technical project. Good documentation tells the end user how to run the program, how to use it, or how to compile it. For many projects, plain text documentation is the standard. After all, every system can display plain text files. However, plain text is limiting. Plain text files lack formatting elements like italics text, bold text, and titles. To add these elements, we can leverage HTML. HyperText Markup Language (HTML) is the markup language used in all web browsers.

How I get students excited about math with Python and Raspberry Pi

I am teaching Python using Raspberry Pi 400 computers in a local library for the second year in a row. A couple of this year's students have not experienced success with mathematics in their school. One asked me if she needed algebra to attend our class. I told her I had failed algebra, geometry, and trigonometry in school. She was relieved.

Ubuntu 22.04.1: Slightly late, but worth the upgrade

  • The Register; By Liam Proven (Posted by bob on Aug 13, 2022 1:27 AM EDT)
  • Story Type: News Story; Groups: Ubuntu
Latest shine on the Jammy Jellyfish brings ton of fixes to keep you working smoothly. The first point-release of the newest Ubuntu is here, which marks the stage it formally becomes the new long-term-support release.…

Contribute at the Fedora Kernel 5.19 and GNOME 43 Beta test weeks

There are two upcoming test weeks in the coming weeks. The first is Sunday 14 August through Sunday 21 August. It is to test Kernel 5.19. The second is Monday 15 August through Monday 22 August. It focuses on testing GNOME 43 Beta. Come and test with us to make the upcoming Fedora 37 even […]

Canonical releases Ubuntu 22.04.1

  • ZDNet | open-source RSS; By Steven J. Vaughan-Nichols (Posted by bob on Aug 12, 2022 7:15 PM EDT)
  • Story Type: News Story; Groups: Ubuntu
The latest long-term support version of Ubuntu receives its first upgrade.

LFX’22 Mentorship Experience with Open Horizon

Ruchi Pakhle shares his experience in the Linux Foundation's mentorship program working with Open Horizon.

A guide to JVM interpretation and compilation

Java is a platform-independent language. Programs are converted to bytecode after compilation. This bytecode gets converted to machine code at runtime. An interpreter emulates the execution of bytecode instructions for the abstract machine on a specific physical machine. Just-in-time (JIT) compilation happens at some point during execution, and ahead-of-time (AOT) compilation happens during build time.  This article explains when an interpreter comes into play and when JIT and AOT will occur. I also discuss the trade-offs between JIT and AOT.

Fix file permission errors on Linux

  •; By Seth Kenlon (Posted by bob on Aug 9, 2022 10:58 AM EDT)
  • Story Type: Tutorial; Groups: Linux
If you're sharing files between two users over the network or "sneaker net" (saving a file to a hard drive and copying it to a computer), you may encounter permission errors when you try to read or write the file. Even if you understand the concept of file permissions, you may not know exactly how to diagnose the problem or solve it. I used to perform data migration as a service, so I've run into my fair share of permission errors and ownership conflicts. Here's how I fix them fast.

GitLab versus The Zombie Repos: An old plot needs a new twist

Git back, git back, git back to where your files belong. GitLab is chewing on life's gristle. The problem, we hear, is that deadbeat freeloaders are sucking up its hosting lifeforce. The company's repo hive is clogged with zombie projects, untouched for years but still plugged into life support. It's costing us a million bucks a year, sighed GiLab's spreadsheet wranglers, and for what? …

Ready for the Linux 6.0 splashdown? Here are some of the highlights

Don't panic if you're not a fan of big changes… it's 5.20 by another name. The next version of the Linux kernel is jumping version numbers, with some performance gains, but it's not a major change all the same.…

Why we chose the Clojure programming language for Penpot

"Why Clojure?" is probably the question we've been asked the most at Penpot. We have a vague explanation on our FAQ page, so with this article, I'll explain the motivations and spirit behind our decision. It all started in a PIWEEK. Of course!

Old-school technical writing with groff

  •; By Jim Hall (Posted by bob on Aug 7, 2022 4:36 PM EDT)
  • Story Type: Tutorial; Groups: GNU, HP, Linux
One of my favorite stories about Unix is how it turned into a text processing system. Brian Kernighan tells the story in his book Unix: A History and a Memoir (chapter 3) but to summarize: The Unix team at Bell Labs ran the original Unix on a PDP-7 computer, but it was a tiny system and didn't have sufficient resources to support new work.

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