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Re: REQUEST: Network Interface Failover and multi-DNS resolution

On Thu, 12 Aug 2004, Carlos Rodrigues wrote:
> Jesse Keating wrote:
> > Why can't you list the second DNS server in /etc/resolv.conf?  Also you 
> > can specify multiple domains to search for base names in.  EG:
> > 
> > /etc/resolv.conf:
> > search hq.pogolinux.com ks.pogolinux.com
> > nameserver
> > nameserver
> > 
> > On this system, one nic is .1 subnet, while the other nic is .2 subnet.  
> > One subnet is hq, the other is ks.  Given that I listed both search 
> > domains, I can do things like "ping fred" and "ping barney"  given that 
> > fred is on HQ and barney is on KS.  Name lookups will work and things 
> > will be happy.
> I've already tried that. It doesn't work. The first nameserver in 
> resolv.conf is the only one that is queried. The other ones are only 
> queried if the first is down, not when the first gives a negative answer.

That's the joy of using split DNS.

If it hurts, don't do it.

Or fix it so that it hurts less, e.g., share the zones.

Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings

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