keep in mind that CentOS is a rebuild of the FOR PAY REHL
and as such uses the redhat documentation
also unless YOU MUST !!! USE !!! the older 6 series for programs that are 6 ONLY
it would be best to use the CURRENT operating system
CentOS 7.1
then use the redhat documentation
( these DO assume !!! that you are an experienced redhat user and have redhat experience)
https://access.redhat.com/documentat...erprise_Linux/
for the older 6 user guides
use the 6 "getting stated " ( click on "6" and "getting started" )
there is also a CentOS wiki
http://wiki.centos.org/
mostly centos 5 and some 6 and7