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 ...

The which command will show you the file-system location for a command’s executable. This is the file that is read and run whenever you type the command name. In the example below, there are two or ...

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 - ...

Linux provides a useful array of commands for managing file permissions, getting information on commands, displaying running processes and displaying details on the system itself. The uname command ...

System administration is a vital necessity of any computer system. However, most universities don't teach system administration. So where do people learn how to become system administrators? Basically ...

The --version (-V) option goes hand-in-hand with --help because it helps you find out about the program, and it’s usually supported where --help is. Traditionally, the --version option prints the ...

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 ...

In recent times, the security aspect of information technology has received considerable attention, and large organizations have dedicated security teams to keep tabs on vulnerabilities in their ...

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 ...