This short howto is about setting up sudo on Red Hat Entreprise Linux and its derivates CentOS and Scientific Linux. It also gives a quick introduction on using vi (visudo).

If you are not running a KDE system, the representative icons of the Oxygen theme that I am referring to, are shown in the image below. They are too sharp to the eyes.

That is why I prefer icons from the ROSA theme. They are much smoother and a lot more polished than those from the Oxygen theme. If you agree, and want to install or use them on your machine, this article shows you how.

OSX is somewhat unique both in the fact that this is not a common server which is monitored and also your actually working with two operating systems, FreeBSD under the hood and OSX built on top. However, these examples could also be used for Linux distros with a few modifications.

This coming Thursday marks the release of Ubuntu 12.04 LTS Precise Pangolin. Many users will download Ubuntu, try it and give up because of some small technical problem. Here is a list of tutorials and resources for Ubuntu beginners that I have found to be useful.

True, you don't NEED to know Linux shell commands these days; you can get along just fine with a GUI interface. But the command-line tools can still come in darned handy sometimes. Here’s the commands with which Linux desktop users should be most familiar, and guidelines about when to use them.

One edition of Linux Mint Debian released a few days ago, features two desktop environments – MATE and Cinnamon. The former is a fork of GNOME 2, while the later is an attempt to bring sanity to GNOME 3, to make it look like something designed for use on desktop computers.

While we can excuse developers for installing more than one application for the same computing task, there is no excuse for what Canonical, the company behind Ubuntu, is doing with the scrollbar.

Typing the wrong command can severely cripple your computer. A wrong switch or wrong option is all it takes. One command that I learned to avoid a long time ago, based on what experienced users told me, is rm -rf /. The rm command is what you use to remove or delete a file or directory.