[expert] $HOSTNAME and lookup error

[JP Sartre]

Seems I'm on a role today.. I'm trying to remember how to change my
hostname and I'm also having problems with my current hostname. Upon
running proftpd, I get the following error...

Starting proftpd: Allowing sessions again
h24-xx-xxx-xx.ed.wave.shaw.ca - Fatal: unable to determine IP address of
`h24-xx-xxx-xx.ed.wave.shaw.ca'.

I added the xes btw.. 

anyhow, I think this is a loopback error, but I'm not sure. Please help if
you can. Thanks.

JP