If you’re managing a Linux server, it’s good to be ready with a number of commands that you can use to check user activity – when your users are logging in and how often, what groups they belong to, ...

The sudo command lets users elevate their privileges to run admin tasks. But it's far from perfect. These tips can help.

Linux is a multi-user environment, which means more than one user can use the system at one time. Granted, that mostly takes the form of console access (via SSH), because you can't easily have two ...

The last command allows you to look further back into time to see both current and older logins, beginning with the most recent and moving back into previous logins. The command below reports on ...

How to restrict server users to a specific directory in Linux Your email has been sent Need to lock down that Linux server so certain remote users can only access a ...

In Linux systems, including Debian 12, the sudo group grants users the ability to execute administrative commands. This provides them with the privileges to install, update, and delete software, ...