In this age of relentless online attacks by criminals, forcing password changes upon users is a must adopt security policy. As any seasoned Linux system administrator will tell you, only idiots don’t implement password aging. The concept of setting timelines for password validity is known as password aging. The key Read More
CentOS (the unsupported, free version of Red Hat Enterprise Linux) is considered one of the most robust Linux distributions around. Countless medium and large businesses and, increasingly lately, Linux enthusiasts run CentOS. So it’s worthwhile to understand how to determine the version of CentOS running on your server or desktop Read More
Every now and then, there arises the necessity for Linux administrators to find out what version of a particular package is running on a CentOS, RedHat or Fedora system. As is to be expected, the commands to find out which version of a package is installed on RedHat, CentOS and Read More
Yum (Yellowdog Updater, Modified) is at the core of the CentOS, Red Hat and Fedora package management systems. On Linux distros like CentOS 7, RedHat 7 or Fedora 21, if you want to update, install or remove packages, list installed packages or update the entire system while at the same time Read More
So you’ve installed CentOS on your computer and have it up and running without any issues. Good job! Now we can move to another key step in your CentOS learning adventure – Adding more repositories. For purposes of this post, it doesn’t matter whether you’ve installed the older CentOS 6.6 Read More
Cent OS 7 with Gnome 3 has a bunch of vexing issues. Fortunately, the issues can be easily fixed. I did a minimal install and then set up Gnome 3 desktop on it. Icons on Desktop But one thing I found vexing was the inability to place shortcuts for applications Read More