[ale] Locating the name of public facing machines within a domain

[Tom Freeman]

I almost guarentee that the Subject line should be better phrased...

In any event... I has been long enought since I needed to much with DNS 
type stuff that if I ever knew the answer, I have forgotten that I knew. I 
need/want to locate _all_ of the public internet facing machine names of 
my employer in order to locate the correct URL address for what I need to 
do. (Yes - asking support is feasable, but they are over loaded and I know 
that the machine name is related to the service I want)

An example might help (I hope so at least). Say I want to get into the old 
Moodle system (which is being retired, but isn't shut down quite yet). Is 
it moo1.myschool.edu, moodle1.myschool.edu, oldmoo.myschool.edu or some 
other variant? I don't need/want the IP addresses, but the machine names.

Support people at work are sadly overloaded, so response times are rising 
at the moment. I'd like to be able to dig my way out of this challenge.

So far - I haven't asked the Google a correctly formed question to return 
anything semi-useful in the first 100 + responses. I have looked at the 
dig man page, and that seems like it should work, but haven't managed to 
wrap my head around things yet.

Thankyou one and all for the use of your bandwidth!