"resolv.conf" question

[Derek Broughton]

Markus Schönhaber wrote:

> Soo-Hyun Choi schrieb:
> 
>> I have installed and configured "dnsmasq" for caching DNS locally. After
>> that, I inserted "nameserver 127.0.0.1" to "resolv.conf" file. But, the
>> resolv.conf file is keeping changed without my intention, which means
>> "nameserver 127.0.0.1" is continuously removed from the file.  I am using
>> a cable Internet service with DHCP IP allocation from an ISP (Internet
>> Service Provider).
>> 
>> I can only guess that the renew process of my IP from the ISP is involved
>> somehow to remove the "nameserver 127.0.0.1" from my resolv.conf file. Is
>> there any way that I can fix the "resolv.conf" file with my intended
>> contents?
> 
> If you're using dhclient to receive an IP address from your ISP you
> might take a look at /etc/dhcp3/dhclient.conf. There you can tell
> dhclient what to request from your provider's DHCP server.
> For me the relevant part of the file looks like this:
> 
> request subnet-mask, broadcast-address, time-offset, routers,
>         domain-name, domain-name-servers, host-name,
>         netbios-name-servers, netbios-scope;
> 
> You may want to remove "domain-name-servers" from that.

Or just use 
 prepend domain-name-servers 127.0.0.1;

and leave everything else as-is.  Then the first name server is 127.0.0.1
but it can still use the ISPs servers as a fallback
-- 
derek