Change hostname etc.?

[Rudolfo Munguia]

You already have the correct methodology, you have found the files that
retain the old name, now you just need a quick script to run through those
files and 's /test$/testa'

I have done this hundreds of times under solaris, freebsd and redhat. I
don't see why it would not work with SuSE.

On 7/20/06, Alan Dayley <alandd at consultpros.com> wrote:
>
> I am up against the wall on Changing computer hostname and all associated
> files.  Is there documentation somewhere on how to do a complete job of
> it?
>
> Planned Scenario:
>
> 1 - Buy 4 identical computers: 4 shuttle bare bones systems, 4 Celeron
> D's, 4 RAM modules, 4 hard drives.
> 2 - Install Windows 98 (don't go there, I didn't want to) and OpenSUSE
> 10.1 on one complete system.
> 3 - During SUSE install, define hostname to be 'testa'.
> 4 - Configure for login authentication from Windows domain.
> 5 - Configure desired software, tools, etc.
> 6 - Use 'dd' to copy completed drive to each of the 3 other drives.
> 7 - Power up each of the three other systems, in turn, changing their
> hostname from 'testa' to 'testb' 'testc' and 'testd'.
> 8 - 4 computers now ready to go!
>
> The Problem:
>
> Got through all steps to 6 just fine.  At step 7 I used YaST to change the
> hostname on the second computer.  Changed from 'testa' to 'testb'.
> Rebooted.  Login for normal user will not work.  So, logging into the
> console as root, I take a look around.
>
> The command 'grep -ir testa /etc/*' gives back several files that still
> use the testa hostname: hosts.YaST2save, samba/secrets.tdb,
> ssh/ssh_host_key, ssh/ssh_host_dsa_key.pub, ssh/ssh_host_rsa_key.pub.
>
> So, using the same grep with 'testb', I find all the files and change them
> back to 'testa'.  Reboot and login now works.
>
> The Questions:
>
> 1. How do I change the hostname and all it's associated files?  It seems
> that YaST does not do a complete job.
>
> 2. Ignoring all the files for a minute, there will be a change in the MAC
> on each network interface for the computers.  Does this MAC address figure
> into the various keys, etc.?  If so, how do I update these too?
>
> The Goal:
>
> I want to avoid a complete re-install of SUSE on each individual computer.
> Maybe there is a different way to do what I want but I naively thought
> this would work.  Is there a better way to accomplish this?
>
> Alan
>
>
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