Caching nameserver

[Mark Andrews]

> On FCx you should look for man dhcpd and look for client-enter-hook or
> something like that.
> 
> That is a method to get your own shell script run instead of the
> standard one. I have made an empty function and I no longer see this
> problem. This way you can replace the script that overwrites your
> /etc/resolv.conf
> 
> It is possible and I would even say recommended to think about
> implementing the same method for NTP if you want your own setup of that.

	If you are looking a dhclient then add changing dhclient.conf
	is much easier.

		supersede domain-name-servers 127.0.0.1;

				or

		prepend domain-name-servers 127.0.0.1;

	I use the later as that also works when you are in a hotel
	which has a "transparent" dns caching proxy.  Named doesn't
	like the answers returned from the "transparent" dns caching
	proxy as they don't have the "aa" bit set.  Name resolution
	just takes a little longer than normal in that situation.

	Mark

> Jeff Lightner wrote:
> > Haven't done it on FC4. 
> >
> > On Debian I was using dhclient and edited /etc/dhclient.conf.  In there
> > I uncommented the line for superseding the domains:
> >
> > supersede domain-name "water.com dsw.net dmz.water.com";
> >
> > -----Original Message-----
> > From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org] On
> > Behalf Of Scott Ackerman
> > Sent: Tuesday, December 19, 2006 8:59 AM
> > To: bind-users at isc.org
> > Subject: Caching nameserver
> >
> > I have just set up my Fedora Core 3 box with Bind and configured it as a
> > caching name server. Everything seems to be working fine except that
> > when I use "dig" the name server that responds is 68.87.85.98 which is a
> > Comcast name server. Now the reason that I am getting that is because I
> > am on a cable modem and the linux box that is set up to be my
> > router/firewall/proxy server/dhcp server/dns server, is set up to
> > acquire it's IP address via DHCP and whenever I restart it the
> > resolv.conf file automatically gets changed to reflect Comcast's
> > nameservers. I am sure that this is a simple problem, but how do I fix
> > it?
> >
> >   
> 
> -- 
> Best regards
> 
> Sten Carlsen
> 
> No improvements come from shouting:
> 
>        "MALE BOVINE MANURE!!!" 
> 
> 
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org