Over the last few days a security issue was identified with Red Hat/CentOS servers.
Any CentOS 6 servers here at Nimbus have been automatically patched overnight. We recommend that clients reboot their servers via their client area at their earliest convenience. You can either do this via your server control panel/SSH or drop us a support ticket and the support team will do it for you.
Reboot via Panel:
Plesk -> Toos & Settings -> Reboot Server.
WHM -> Graceful Server Reboot
Reboot via SSH:
SSH -> SU to Root -> Type ‘reboot’.