Haven't done it myself but the instructions at this link seem fairly straightforward:
http://www.if-not-true-then-false.co...Speed=noscript
Any instructions for CentOS/RHEL 7.1 would be appropriate in what he writes. Any that are specific to CentOS/RHEL6 only are not necessary where he differentiates.
Fedora is a bleeding edge distro that is used as a test bed for what ends up in RHEL which is why the versioning is so different.
CentOS on the other hand is built from the source code for RHEL as is SL so they tend to be very closely related.