Problem with DHCP, /etc/hosts and GNOME
Keven Ring
keven at mitre.org
Thu Apr 8 20:15:11 UTC 2004
William Hooper wrote:
>Satish Balay said:
>
>
>
>>Ah.. I interptered it as - an option to dhcp-clinet (not server) to
>>ignore what dhcp server says - and use the provided value as the
>>hostname. Perhpas there should be some other option for this
>>functionality? (RFE)
>>
>>I don't like hostname changing (when you move laptop between networks)
>>- this changes xauth which messes up everything else..
>>
>>
>
>A quick browse through the networking scripts suggests that the hostname
>will only change if it is "localhost". I haven't looked too hard though.
>I know that I don't have a problem with my laptop, which I set the
>hostname on during install (but that was with RHL 9 and an upgrade to
>FC1). It may be more of a case of the DHCP servers I'm using not trying
>to change the hostname, though.
>
>
>
>
It's in the /etc/sysconfig/network-scripts/network-functions script.
There is a function called need_hostname().
Returns 0 if the current hostname is "localhost",
"localhost.localdomain" or "(none)". Returns 1 otherwise. This
function is called in the /etc/sysconfig/network-scripts/ifup script.
However, again, just like everything else, just because the DHCP client
*requests* a hostname, does not mean that the DHCP server is obliged to
hand one back...
HTH...
--
Keven Ring | "Oh no, Not Again..."
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