On Linux, the umask defines how new files and directories inherit access rights. Linux uses your current umask value to ...

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 ...

Linux is constantly evolving, and with it the tools that its fans use on a daily basis. However, some of the classics such as ...

Commands that provide help are essential. Here's a look at some of the help you can get from the Linux system itself. Even after you’ve used Linux for a while, you will still find yourself needing ...

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 ...

The .history file in Linux – whether ~/.bash_history, ~/.zsh_history or ~/.history – provides ways to track and reuse commands that you have recently run. This post suggests how you might make good ...

A simple to follow course, but sadly it isn’t very detailed in places. Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you're buying the best.

As Terry Lambert, the developer behind Linux ancestor Unix, once said, "It is not Unix's job to stop you from shooting your foot. If you so choose to do so, then it is Unix's job to deliver Mr. Bullet ...

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 If you’re a Linux system admin, you probably find yourself ...

On Monday, Ubuntu security notice USN-7867-1 revealed two security holes in the new Rusty sudo command, whose arrival in ...