RHEL/CentOS Server Security

As a part of the sys admin’s job, it is important to take a few extra minutes to go through and properly secure a newly installed Linux server. These steps include enabling SELinux on the machine, configuring the firewall, and setting user permissions. There are however additional steps one should Read more…

GPG Keys

​GnuPG is used to encrypt and sign email messages and files. First you need to create the GPG key: Generating Keys ———————————————————– $ gpg –gen-key ———————————————————– Select option 5 for RSA and then type the encryption level. ———————————————————– Please select what kind of key you want: (1) DSA and Elgamal (default) (2) Read more…