Adding a user with admin privileges on Linux is easier than you think. Jack Wallen shows you how. If you’re a Linux system admin, you probably find yourself scrambling to keep everything in check ...

Knowing which sudo or su command to run is important. Jack Wallen demystifies these two Linux admin tools. If you’re a new Linux admin, you probably at least know about sudo. Sudo stands for “super ...

Linux Administration: A Beginner's Guide by Wale Soyinka is a hands-on manual for IT staffers who must dance with Windows and Linux. It is a practical guide for network admins who deploy and maintain ...

Linux can have a somewhat split personality. If you use it as a desktop OS, it has a lot of GUI tools, although sometimes you still need to access the command line. If you use it as a headless server, ...

I once locked myself out of my files with a simple mistyped command. This was the first time I rendered my Linux installation unusable, and it was because I didn’t understand permissions. While I ...

Whether your Linux box has hundreds of users or just one account for you and one for your dog it is important to understand how Linux user accounts work. There are GUI tools for this within GNOME and ...

I have been a Linux advocate for about ten years now. The first version of Linux I installed was Red Hat 3.0.3. I had used a UNIX-based system in graduate school, and I was somewhat familiar with how ...

UNIX and Linux System Administration Handbook, Fifth Edition, is today’s guide to installing, configuring, and maintaining any UNIX or Linux system, including systems that supply core Internet and ...

Linux old-timers revel in reminding newcomers that they used to have to do everything by hand, at the command line, uphill, both ways, with duct tape for shoes. What really gets some of these folks ...