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 ...

The "Students" Project at the University of Verona is based on OpenLDAP (it's an open-source implementation of LDAP) for managing the centralized authentication of both Windows and Linux laboratories, ...

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 have a RedHat 9.0 system and have set up a shell script that uses /bin/bash for it's execution. I have set up a user for the system that is presented with this script upon login. The script is ...

Most Linux distributions are considerably more secure than Windows out of the box. There are many reasons for that, including the inherent user and file permissions structure, the addition of ...