While the average Unix user is generally satisfied by the date/time stamps that he sees when using the ls -l command, it is sometimes useful to remember that there are actually several time stamps ...

Triggering scripts with incron and systemd. It is, at times, important to know when things change in the Linux OS. The uses to which systems are placed often include high-priority data that must be ...

Authentication is a mechanism that verifies whether an entity is who it claims to be. On a Linux system, applications, such as su, passwd or login, are used to authenticate users before they are given ...