[luau] dhcp-146-41

[Warren Togami]

W. Wayne Liauh wrote:

> I was helping one of my partners installing Red Hat 8.0.  This is a 
> stand-alone machine with RR cable modem.
>
> I noticed that, instead of the usual "localhost", the computer was 
> designated, out of the blue, a name called "dhcp-146-41".  It was 
> subsequently concluded that this was the source of all the problems 
> (including inability to install printer driver, etc.)
>
> If I unplug the cable modem and re-install Red Hat, then everything 
> would initially appear normal (i.e., it will be given the "localhost" 
> name).  However, as soon as I turn the cable modem back on, the host 
> name would immediately change to "dhcp-146-41".  And during booting or 
> re-booting, the system would try to load sendmail and samba server, 
> both of which were never installed.  There are also other problems, 
> including the messages of "cannot find server address dhcp-146-41" and 
> "this system is controlled by another computer), etc.  If I do the 
> installation with cable modem on, it would automatically install 
> sendmail and samba, even though I only checked on the "personal" 
> packages.
>
> Anyone cares to take a crack?  I have an identical system at home 
> which never had any problem.
>
That's the default behavior of DHCP in Red Hat 8.0.  It is probably best 
to override that with a set hostname when you use DHCP.  However, I 
wasn't aware that changing hostnames like that would cause so many 
problems for those services.  I need to take a closer look at this on my 
system.