It's all learning ... all the time ... never stops ... so you have a good attitude about that. That's great.
I will make one more comment for what you've shared about the plan to installing Moodle sorta sends chills down my spine ....
This other person who is saying he will install it for you *IF* you acquire the RPM's is scary for if he will be attempting that feat via RPM's only? IF you miss any of key dependency libraries etc. the setup will be stalled dead in it's tracks. IF that server is NOT on the internet at that time, not sure what one will do to acquire the needed files.
Think you need to do the install/setup when on a network using yum.
'spiriit of sharing', Ken