Hostname Change
 

How do I go about permanently changing the hostname of my machine? I run:
as root and it changes, but upon restarting my computer it goes back to being localhost, is there any way to make sure the change is permanent?

Try this:
cat /etc/sysconfig/network

Do you see a line that says "HOSTNAME=myoldbox" ? I know that's the primary place I edited to change it.

And since I use static addressing, I also edited /etc/hosts, though you won't have to if you accept the default with DHCP.

If you have configured postfix, maybe you'll have to edit the "myhostname=" line /etc/postfix/main.cf.

I changed under /etc/hosts,
format as,
ip-addr hostname.domain.name hostname