Managing user groups on Linux systems is easy, but the commands can be more flexible than you might be aware. User groups play an important role on Linux systems. They provide an easy way for a select ...

Authorization is the process of deciding if entity X is allowed to have access to resource Y. Determining the identity of X is the job of the authentication process. One task of authorization in ...

I ran into an odd issue the other day when I was working on a Linux box. I noticed a number of processes in the ps output were listed with the user’s UID instead of his username. It took a little ...