IPv6 and IPv4 - how to shut off IPv6?

[Stephen Ryan]

On Mon, 2007-04-02 at 10:19 -0400, Paul Lussier wrote:
> "David A. Long" <dave at jumpshift.com> writes:
> 
> > On Sun, 2007-04-01 at 20:06 -0400, Paul Lussier wrote:
> >
> >> The 'search localdomain' doesn't look right to me.  What is acting as
> >> your DHCP server?
> >
> > I think that's just the default domainname you get.  The firewall should
> > be handling the name service (he said it had two IPs for that).
> 
> Strange.  I run dhclient on my system, and it gets the DNS info my
> router grabs from Comcast and populates /etc/resolv.conf for me, no
> localdomain cruft.
> 
> Though I note he has since found a kink in the cable, I can't help but
> think is DNS config is not optimal, and think the culprit is likely a
> misconfigured router/firewall box.

Wait, what?  What exactly is the problem with having localdomain in the
search path that isn't actually made worse by having (say) a random
comcast subdomain there instead?