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 ...

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 ...

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 ...

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

Working on the command line is an integral part of being a successful Linux user. You need to have a firm grasp of certain commands to work effectively. There are even certain commands that you must ...

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 ...

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 ...

Trout Creek, Montana hardly seems like a place one would expect to find a center of Linux learning. Please do not tell Mike Weber of SpiderTools that. He spent the last six years developing one of the ...

The arping command can ping local systems to find out whether they are responsive, and with the help of scripts, can ping specific IP-address ranges. The arping command is one of the lesser known ...