[linux-help] $HOSTNAME

[root <kryste01@xxxxxxx>]

Hi,

Does anyone know where or how a system's host name is stored?

I added it to /etc/hosts, and now it won't go away.  I'd just like to reset 
it to nothing.

Since the host name I chose when I added it to etc/hosts (and I may have 
added it somewhere else) is invalid, I can no longer send mail from the 
command line.

E.g. I am a single system using a cable modem with service from Cox High 
Speed Internet, on domain: sd.cox.net

Stupidly, I tried to name my server, "resmar1", so now I can't send mail 
because resmar1.sd.cox.net is not a valid host name on the ISP's network.

How do I get resmar1 to go away? 

If worse comes to worse can I find it with

find /etc -type f -name * | grep resmar1 ?
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