RedHat WS dhclient and Windows DNS

I have to set up some RedHat WS machines at work in an otherwise Windows
network. The RedHat boxes use dhcp to get internet addresses using
dhclient. I have to set the hostnames manually (a requirement).

dhclient gets the IP addresses successfully, but the Windows DNS server on
the network never adds the hostnames and addresses of the RedHat boxes to
it's zone. I tried querying the DNS server with dig, and neither an A
record lookup or a reverse lookup succeeds. The status is NXDOMAIN. I dont
control the Windows server.

I looked at the fqdn options in the dhcp-options man page, and they looked
promising, but it says they are only useful if you can control the server.

How do I get the DNS server to update when I get my lease from the dhcp
server?

"chud" <(E-Mail Removed)> wrote in message
news(E-Mail Removed) omain...
>I have to set up some RedHat WS machines at work in an otherwise Windows
> network. The RedHat boxes use dhcp to get internet addresses using
> dhclient. I have to set the hostnames manually (a requirement).
>
> dhclient gets the IP addresses successfully, but the Windows DNS server on
> the network never adds the hostnames and addresses of the RedHat boxes to
> it's zone. I tried querying the DNS server with dig, and neither an A
> record lookup or a reverse lookup succeeds. The status is NXDOMAIN. I dont
> control the Windows server.
>
> I looked at the fqdn options in the dhcp-options man page, and they looked
> promising, but it says they are only useful if you can control the server.
>
> How do I get the DNS server to update when I get my lease from the dhcp
> server?
>
>

/etc/dhclient-eth0.conf ..... contains:

send host-name "chud.whoknowswhat.domain";

This works for me :-)

or, I guess you could manually use the nsupdate utility to
update the DNS records. See: man nsupdate

Enjoy,
Postmaster

chud <(E-Mail Removed)> wrote:
> dhclient gets the IP addresses successfully, but the Windows DNS server on
> the network never adds the hostnames and addresses of the RedHat boxes to
> it's zone. I tried querying the DNS server with dig, and neither an A

Sounds like your windows DNS server is running as part of active directory. If
this is the case, then the DNS record will be created not as a result of
obtaining an IP address from the DHCP server, but instead as a result of
joining the domain.

--
Frank Sweetser fs at wpi.edu | For every problem, there is a solution that
WPI Network Engineer | is simple, elegant, and wrong. - HL Mencken
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On Fri, 06 May 2005 12:17:49 +0000, Postmaster wrote:

>
> /etc/dhclient-eth0.conf ..... contains:
>
> send host-name "chud.whoknowswhat.domain";
>
> This works for me :-)
>
> or, I guess you could manually use the nsupdate utility to
> update the DNS records. See: man nsupdate
>
> Enjoy,
> Postmaster

nsupdate worked.
Who would have thought it would work with a Windows server. I always
thought it was only meant to work with bind.

Thanks to both posters who replied.