If you’re a new Linux admin, you probably at least know about sudo. Sudo stands for “super user do” and allows standard users to take admin-level actions, such as installing software. Even though most ...

One of the things that every Unix systems administrator needs to know to properly manage a Unix system is who else is using the powers of root. Without that knowledge, it is not possible to be ...

Last week’s column looked at sulog — the file that collects information on switch user activity on many Unix systems — and presented a simple Perl script for summarizing su activity. In this week’s ...