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Ever wondered about the busy schedules of your favorite sysadmins? J?rg gives us a sneak peek into his work week!
The ls command is a feature-rich command-line utility. Find out eleven different ways to use it.
Nmap and its associated files provide a lot of valuable information, but you have to know how to get it.
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.
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).
If you can't remember your favorite command line options, consider creating aliases for the ones you use most often.
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.
How to use the ca-certificates package to manage Certificate Authority certificates for command-line utilities.
What's in a name, you ask? Everything. It's how other systems, services, and users "see" your system. https://red.ht/2VGYibk
Dive deeper into the chroot command and learn how to isolate specific services and specific users.
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
Interested in using containers to isolate processes? Then explore the world of chroot jails: the original containers.
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.
Have you ever wondered what happens behind the scenes of a rootless Podman container? Let's walk through an example.
Here are 11 Linux commands that one sysadmin cannot live without.
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.
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.
Got swappiness? Learn how to set appropriate swap settings in Linux, and clear your swap's contents.
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.
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.
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.
LibreOffice is a full-featured office tool, but it has been slow to replace proprietary alternatives in many spaces.
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.
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.
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.
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.
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.
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
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.
Tux is still not a product of any hired advertising agency. There were no investments made into its developments.
A personal journey of systemd discovery, from services and even containers.
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.
Take your Bash scripting to a new higher level using libraries with automation.
Linux system administrators deal with a lot of interesting issues during a career. But what do you wish you knew before you became one?
Learn to elevate your work and your permissions by becoming a super user with sudo.
These three tools are often considered the trifecta network troubleshooting tools for a reason.
Has your Linux sysadmin career stalled? Take this poll to find out the source.
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.
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.
Got Windows? It's time to talk about Samba, an easy to implement and free to use interoperability suite.
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
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.
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.
Meet this set of utilities that help you quickly move through your filesystem.
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.
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.
Who'da thought hiding passwords behind asterisks as you entered the characters could be a security problem?
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.
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.
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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