Certifications from Red Hat, Oracle and SUSE are tailored to environments where those Linux distributions are prevalent.

Installing and updating the OS, managing user accounts, and looking after security are just a few of the primary responsibilities of a Linux systems administrator. While I don’t imagine that I’ll ever ...

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 ...

Docker is sparking a lot of excitement in the open source cloud world. But system admins should take a look, too. Because of these isolated containers, Docker allows developers and system ...

If you’re considering adding Linux to your data center, or your company is looking at promoting you to become their first (or next) Linux admin, you probably understand there are lots of commands to ...

Back in the early days of Linux, things were exponentially more complicated. The distributions were far less mature and required a particular system account to get things done. That account was root - ...

Sudo is one of the most powerful and dangerous tools in the Unix or Linux system administrator's toolbox. With it, an ordinary user can run commands just as if he or she were the superuser or any ...

Until now, system administrators running Linux have had it fairly easy. But this won't last long. Why? Well, until now Linux has been basically a server OS. The GUI, and therefore window manager, was ...

Removing sudo rights from CentOS (top) and Ubuntu (bottom). How to create a new user with admin privileges on Linux Your email has been sent Black Hat: Security Researcher Unpacks Cybercrime’s ...