Know the easiest way to install mcrypt in Plesk for Linux. Just follow the steps or visit VPSBlocks Support for your help.

If you have Plesk installed and require mcrypt you need to do the following:

Login via SSH and use the following commands

wget http://www.atomicorp.com/installers/atomic.sh

sh ./atomic.sh

Answer yes to the question regarding installing this repository

yum install php-mcrypt

This may also want to update PHP, this will only update minor versions e.g 5.4.28 to 5.4.31. Answer yes to this and any questions regarding GPG keys.

service httpd restart

Mcrypt should now be installed.