How do I install MCrypt on my server using Plesk?

MCrypt provides additional encryption for your site. Magento requires it in order to run correctly, and other software packages may also require it.

It does not currently exist in the standard repositories for Plesk, but you can install a new repository from the command line and then install MCrypt onto your server fairly easily.

Open a command window into your server via SSH
Add the EPEL repository
Paste in:

wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

Paste in:

rpm -Uvh epel-release-6-8.noarch.rpm

Install MCrypt using YUM by pasting in:

yum install mcrypt

MCrypt will now be installed and usable

If you need MCrypt for PHP, you can also add the Atomic Repository for php-mcrypt.

Log into your server via SSH
Add the atomic repository to your system with this line:

wget -O - http://www.atomicorp.com/installers/atomic |sh

Install php-mcrypt with this line:

yum install php-mcrypt

MCrypt will now be installed onto your server