Have you got this error from Apache?
[notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[error] (28)No space left on device: Cannot create SSLMutex
At first glance it appears that you may be out of disk space but the issue is ipc or interprocess communication.
This will clear out the ipcs processes so things can work, this often happens during high traffic and may be a sign of DDOS.
The command below will fix it, it will list al........
This is a handy link and list of all the relevant Directadmin log files and related servers.
http://help.directadmin.com/item.php?id=11
DirectAdmin:
/var/log/directadmin/error.log
/var/log/directadmin/errortaskq.log
/var/log/directadmin/system.log
/var/log/directadmin/security.log
Apache:........
Apache/httpd
Failed to save enabled features : The Suexec command on your system is configured to only run scripts under /var/www, but the Virtualmin base directory is /home. CGI and PHP scripts run as domain owners will not be executed.
This is because I never edited the Apache Config and Virtualmin config to reflect my new/current updated structure.........