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Optimizing your CentOS Virtual Server running the cPanel/WHM software

Virtual servers are not known to have a ton of memory, and when you install something like cPanel/WHM on the server you now have many services running all wanting to use that limited memory. Below is a list of things that can be done to help optimize your virtual server.

Do all

This section contains everything discussed in this article, beware as it may disable things your customers are using. For the most part it should be ok for most to run and anything it does can easily be fixed.

service xfs stop
chkconfig --level 2345 xfs off
service iscsi stop
chkconfig --level 2345 iscsi off
service iscsid stop
chkconfig --level 2345 iscsid off
touch /etc/cpdavddisable
/usr/local/cpanel/etc/init/stopcpdavd

Disable XFS

XFS is a X font server.

service xfs stop
chkconfig --level 2345 xfs off

ISCSI and ISCSID

Used to mount remote ISCSI targets

service iscsi stop
chkconfig --level 2345 iscsi off
service iscsid stop
chkconfig --level 2345 iscsid off

Disable cPanels webdav

cPanel offers a webdav service, people very rarely use this

touch /etc/cpdavddisable
/usr/local/cpanel/etc/init/stopcpdavd