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What my day looks like as a sysadmin

Ever wondered about the busy schedules of your favorite sysadmins? J?rg gives us a sneak peek into his work week!

Sysadmin tools: 11 ways to use the ls command in Linux

The ls command is a feature-rich command-line utility. Find out eleven different ways to use it.

Nmap command line info gathering magic

Nmap and its associated files provide a lot of valuable information, but you have to know how to get it.

How service virtualization relates to test-driven development

The agile approach to software development relies on service virtualization to give each IT team autonomy. This approach removes blockages and allows autonomous teams to continue development activities without having to wait on anyone. That way, integration testing can commence as soon as teams start iterating/sprinting.

Getting started with lightweight alternatives to GNU Emacs

I work on a lot of servers, and sometimes I find a host that hasn't installed GNU Emacs. There's usually a GNU Nano installation to keep me from resorting to Vi, but I'm not used to Nano the way I am Emacs, and I inevitably run into complications when I try to save my document (C-x in Nano stands for Exit, and C-s locks Konsole).

How to create command-line keystroke aliases in Linux

If you can't remember your favorite command line options, consider creating aliases for the ones you use most often.

Raspberry Pi 4: Chronicling the Desktop Experience – News – Week 19

A news aggregator is software which collect news, weblog posts, and other information from the web so that they can be read in a single location for easy viewing. With the range of news sources available on the internet, news aggregators play an essential role in helping users to quickly locate breaking news.

Making CA certificates available to Linux command-line tools

How to use the ca-certificates package to manage Certificate Authority certificates for command-line utilities.

How to change your hostname in Linux

What's in a name, you ask? Everything. It's how other systems, services, and users "see" your system. https://red.ht/2VGYibk via #EnableSysadmin

Taking a deeper dive into Linux chroot jails

Dive deeper into the chroot command and learn how to isolate specific services and specific users.

Inside the Free Software Foundation (FSF) - Part III: Imagining an FSF Award Going to Anti-Stallman People

  • Techrights; By Roy Schestowitz (Posted by schestowitz on Mar 1, 2020 11:37 AM EDT)
  • Story Type: Editorial; Groups: GNU
The next FSF award may be given to Richard Stallman himself; but it might also be given to a person largely responsible for ‘ousting’ Stallman, which would be catastrophic

How to set up Linux chroot jails

Interested in using containers to isolate processes? Then explore the world of chroot jails: the original containers.

What is my Linux command prompt telling me?

If you don't know the difference between $ and #, then this article is for you. Even if you do know the difference, you might learn something new.

What happens behind the scenes of a rootless Podman container?

Have you ever wondered what happens behind the scenes of a rootless Podman container? Let's walk through an example.

11 Linux commands I can’t live without

Here are 11 Linux commands that one sysadmin cannot live without.

A beginner's guide to navigating the Linux filesystem

As a new Linux user, one of the first skills that you need to master is navigating the Linux filesystem. These basic navigation commands will get you up to speed.

How to recover a root password in Red Hat-based Linux systems

Forgetting or never having the root password for a Linux system is a bad thing. This short how-to will prevent a time-consuming reinstall.

How to clear swap memory in Linux

Got swappiness? Learn how to set appropriate swap settings in Linux, and clear your swap's contents.

Open source licenses: What, which, and why

Most people have at least heard of open source software by now—and even have a fairly good idea of what it is. Learn what open source licenses are, which one to choose, and why it matters.

Is open source software licensing broken?

Practices and expectations that one may have developed in working with conventional software licensing may lead to frustration when confronting open source software. The modest request, "Please, just show me the license" may be met with an unsatisfying response. While sometimes the response is very simple, often, the license information for open source software is more complicated and does not match the expectations set by conventional software licensing.

Red Hat OpenStack Platform 16 Delivers Long-Term Support

  • IT Pro Today; By Sean Michael Kerner (Posted by red5 on Feb 24, 2020 12:15 AM EDT)
  • Story Type: Editorial; Groups: Cloud
The major update of Red Hat's OpenStack Platform will be supported for five years and integrates new features from the last three open-source OpenStack project releases.

Sysadmins: Is LibreOffice a viable office suite choice for your users?

LibreOffice is a full-featured office tool, but it has been slow to replace proprietary alternatives in many spaces.

How Kubernetes Became the Standard for Compute Resources

CNCF plays a critical role in building a vibrant ecosystem around Kubernetes, creating a massive community to build, nurture and commercialize cloud-native open source technologies. The post How Kubernetes Became the Standard for Compute Resources appeared first on Linux.com.

Managing swap in the modern Linux system

Swap space is an integral part of the modern Linux system, especially in the Enterprise environments of today. Many of you may be familiar with its concepts and how to manage it to work in your favor. I would bet that there are a lot of people who, like myself until recently, haven't interfaced with swap or the manipulation of it in a live environment and may not entirely understand its purpose. I want to go through the basic concepts and explain how to create and manage a swap space.

How to open a Linux terminal window

Say you are new to Linux world and just installed Linux desktop and now you would like to fire up terminal window and start issuing commands, but wait you don’t know how to access a terminal window in Linux, in this article I will walk you through how to open a Linux terminal window and set up a keyboard shortcut for easier access.

Antitrust Laws and Open Collaboration

The classic way for companies to violate the antitrust laws is to get together and agree to all do something the same way. Happily, the regulators understand that creating open standards and open source is a good thing. But you still have to keep the rules in mind if you want to stay on the right side of the line.

The Linux Foundation identifies most important open-source software components and their problems

  • ZDNet | open-source RSS; By Steven J. Vaughan-Nichols (Posted by bob on Feb 19, 2020 3:25 AM EDT)
  • Story Type: Editorial; Groups: Linux
In its latest study, the Linux Foundation's Core Infrastructure Initiative discovered just how prevalent open-source components are in all software and their shared problems and vulnerabilities.

Is Linux Foundation a Microsoft Branch Now?

The so-called ‘Linux’ Foundation (LF) nowadays helps Microsoft cement its monopoly — the very opposite of what ages ago it said the LF would do

Give your Linux system's firewall a security boost

Firewalls are great but they're ineffective if something goes wrong with them. The /etc/hosts.allow and /etc/hosts.deny files are the second line of defense against intruders.

Penguin Tux - An Interesting story behind Linux Mascot

Tux is still not a product of any hired advertising agency. There were no investments made into its developments.

How I learned to stop worrying and love systemd

A personal journey of systemd discovery, from services and even containers.

How the Iowa caucus app went wrong and how open source could have helped

  • ZDNet (Posted by bob on Feb 13, 2020 5:59 PM EDT)
  • Story Type: Editorial
Opinion: It was incompetence, not politics, that led to the Iowa caucus app misfiring. Above all, it was poor programming. Open-source software techniques could have prevented this blunder.

Using Bash for automation

Take your Bash scripting to a new higher level using libraries with automation.

10 things I wish I'd known before becoming a Linux sysadmin

Linux system administrators deal with a lot of interesting issues during a career. But what do you wish you knew before you became one?

Linux command line basics: sudo

Learn to elevate your work and your permissions by becoming a super user with sudo.

Ping, traceroute, and netstat: The network troubleshooting trifecta

These three tools are often considered the trifecta network troubleshooting tools for a reason.

What's the source of sluggish career advancement for Linux system administrators?

Has your Linux sysadmin career stalled? Take this poll to find out the source.

Open source vs. proprietary: Whats the difference?

There's a lot to be learned from open source projects. After all, managing hundreds of disparate, asynchronous commits and bugs doesn't happen by accident. Someone or something has to coordinate releases, and keep all the code and project roadmaps organized. It's a lot like life. You have lots of tasks demanding your attention, and you have to tend to each in turn. To ensure everything gets done before its deadline, you try to stay organized and focused.

Using Powershell to automate Linux, macOS, and Windows processes

  • Opensource.com; By Willy-Peter Schaub (Posted by bob on Feb 9, 2020 10:28 PM EDT)
  • Story Type: Editorial; Groups: Community, Linux
Automation takes control of manual, laborious, and error-prone processes and replaces engineers performing manual tasks with computers running automation scripts. Everyone agrees that manual processes are a foe of a healthy DevOps mindset. Some argue that automation is not a good thing because it replaces hard-working engineers, while others realize that it boosts consistency, reliability, and efficiency, saves time, and (most importantly) enables engineers to work smart.

Windows and Linux interoperability: A look at Samba

Got Windows? It's time to talk about Samba, an easy to implement and free to use interoperability suite.

Kubernetes Operators: 4 facts to know

Without real automation, you won’t realize the full potential of containers. That’s where Kubernetes Operators play a growing role. Here’s what IT leaders should know

How to get started with Robotic Process Automation (RPA): 4 steps

  • enterprisersproject.com; By Kevin Casey (Posted by crudder on Feb 8, 2020 4:49 AM EDT)
  • Story Type: Editorial; Groups: Community
Robotic Process Automation tools may make the how to get started easy, but you must still figure out the what, where, when, and why. Consider these steps - from identifying RPA opportunities to measuring success.

An introduction to Linux Access Control Lists (ACLs)

Linux Access Control Lists, or ACLs, can take some getting used to, but they're invaluable for getting a finer-grained control of your Linux filesystem permissions.

Terminal velocity: Moving fast in your shell

Meet this set of utilities that help you quickly move through your filesystem.

How to add a Yum repository

There are a few different ways to add a Yum repository to your system, depending on what you need from the repository. Let's look at three different options.

Why IBM Choosing Arvind Krishna Over Jim Whitehurst Was Wise

It was widely expected that Red Hat's Jim Whitehurst would be Ginni Rometty's successor. Instead, the job is going to Arvind Krishna -- and that's probably a good thing.

Nasty Linux, macOS sudo bug found and fixed

  • ZDNet | open-source RSS; By Steven J. Vaughan-Nichols (Posted by bob on Feb 5, 2020 6:13 AM EDT)
  • Story Type: Editorial; Groups: Linux
Who'da thought hiding passwords behind asterisks as you entered the characters could be a security problem?

Linux Still Not a Threat to Windows 10’s Home Domination

The death of Windows 7 was seen by many as a major opportunity for the Linux world to gain new users, especially as many of the devices where Microsoft’s 2009 operating system was installed were running on old hardware.

Bash command line exit codes demystified

If you've ever wondered what an exit code is or why it's a 0, 1, 2, or even 255, you're in the right place.

Choosing the right tools for your open source projects

Every open source community wants to make it easier for community members to participate and contribute. Typically, there are discussions on cultural aspects of the community to lower barriers to entry, such as fostering a friendly and welcoming environment, onboarding processes, mentorship, code of conduct, etc. However, in my discussions with several open source communities (e.g., Freedesktop, GNOME, KDE, etc.), I found that one of the key criteria when selecting new tools for code, CI, bug tracking, etc.

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