When you need to enforce password changes for users on Linux machines, the chage command-line tool is a must-have. As a Linux admin, you’re probably accustomed to passwd, chown, chmod, and chgrp…all ...

Unix sysadmins sometimes use the command chage -d 0 to immediately expire a user’s password. While only one of a number of ways that you can use to disable accounts, it’s one that’s quick (it doesn’t ...

I cannot tell you how many times I've had to manage user passwords in Linux without the help of a GUI app. Whether it's on a server or because I'm using SSH to access a remote machine, knowing the ...

There are times when locking a Linux user account is necessary and times when you need to reverse that action. Here are commands for managing account access and what's behind them. If you are ...

Linux is a multi-user operating system. What does that mean? Like all good operating systems, you can have multiple user accounts on one machine. You can also have more than one user logged in at once ...