DHCP handing out the wrong dns servers

PCC · 05-17-2007, 08:10 PM

I am using CentOS 4.4 and a setup I've been using broke this week.

In dhcpd.conf I have a global option:

option domain-name-servers hostname;

I also use this box as a firewall/router and now all of my LAN hosts
are getting their DNS set to the public IP from the WAN interface.

I can't tell if this is a named problem or a dhcpd problem.

For example "hostname" on this particular server resolves to 10.0.0.1
hostname.example.com resolves to 70.x.x.x. My windows hosts get the 70.x.x.x
number.

Thanks in advance

bsdunix · 05-17-2007, 08:16 PM

Quote:

option domain-name-servers hostname;

Have you tried just using an IP address?

Code:

option domain-name-servers 10.0.0.1;

PCC · 05-17-2007, 08:25 PM

yes, that works. I am curious why the other way does not though.