Really changing the hostname

[Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>]

I need to change the host name on a test server, and in the past when I 
used hostname to change the hostname, it did not seem to change it 
everywhere.

I really don't want to do a rebuild just yet, but I have to feel 
confident that hostname is really changed (reboot is not too much of an 
issue).

What is the recommened practice?  Other than get it right the first time.


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