// Amin Astaneh

I discovered that if you had a beefy server that you wanted to execute apps on using X11 forwarding, you don’t need to install X to accomplish this.

Just:
yum install xorg-x11-xauth

(and optionally install liberation-fonts if you use RedHat and need the fonts package).

For other distros, install whatever package that provides /usr/bin/mkxauth and /usr/bin/xauth.