[TriLUG] /etc/sysconfig/network question

[Marty Ferguson]

My bad...

Sometimes it would do me well to actually study the question....

This is a dhclient vs DHCP...DNS...dhclient...resolver  issue....

In certain situations, resolver wants to catenate the domain name to the 
host name.
Usually you simply want to provide the host name alone, not the FQDN 
when establishing
hostname to the system.   All of the files in the /etc/sysconfig path 
are simply redhat-isms for
your convenience so that your config parameters are all in 1 location 
for the init scripts.

Check man (7) hostname for the complicated mumbojumbo about resolver.

Your problem may be best solved by handing out a fixed address from your 
DHCP server to
your mailhost, and nailing down the MAC/IP address combination.

M

=================
Marty Ferguson wrote:

> My browser met 404 on your link, but let me just say this...
>
> Assumption) You are talking ISC's DNS
>
> Depending on which stanza in the DNS config file you 're talking 
> about, (sight unseen)
> you very well should provide only the host name with no terminal  "."
>
> ISC DNS appends the subdomain/domain name in many instances.  If the 
> (404'd) Red Hat page
> cites otherwise, then I don't know where to steer you, but if the 
> prepoderance of evidence indicates
> that you should only provide the hostname, that is probably the solution.
> M
>
> Greg Brown wrote:
>
>>
>> Yeah, this is a basic one, but one I'm finding conflicting answers for.
>>
>> 1. If a computer is on a DHCP network where the hostname, but not 
>> the  domain information, of that computer is set and typed in during 
>> the  installation should /etc/sysconfig/network contain the fully 
>> qualified  name or just the hostname without the domain info?
>>
>> i.e. should /etc/sysconfig/network for vtcmail on the network  
>> gc.lucent.com read just HOSTNAME=vtcmail or  
>> HOSTNAME=vtcmail.gc.lucent.com?
>>
>> This page at RH seems to indicate it should be the fully-qualified 
>> name  yet many other google searches say, no, it should only contain 
>> the  fully qualified name:
>>
>> <"http://www.redhat.com/docs/manuals/linux/RHL-8.0-Manual/ref-guide/s1- 
>> boot-init-shutdown-sysconfig.html">
>>
>> Right now, the server I'm having so many troubles with has the  
>> fully-qualified name in /etc/sysconfig/network
>>
>> Greg
>>
>