[CentOS] Changing hostname?

mouss wrote:
> admin wrote:
>> It's worth checking that /etc/sysconfig/network also has whatever 
>> hostname you wish to use configured in it.
>>
>> To effect changes, it may be necessary to restart the network:
>>
>> service network restart
>>
> 
> 
> no need to restart, just run the hostname command to set your system 
> hostname.

caveat though: the hostname command won't affect already running 
services if they rely on the hostname.