[nycbug-talk] Split Horizon DNS

[Matt Juszczak]

Hi all,

Right now, I've got the following setup going:

 	-8 FreeBSD boxes
 	-2 of them running bind, one master one slave
 	-every /etc/resolv.conf set to those two servers
 	-two servers configured to forward onto ISP nameservers

The goal?  Allows me to create a "domain name".int (IE: 
server1.mydomain.int) for use internally, while still allowing everything 
external to resolve correctly.  The reason for creating the .int was to 
allow use internal access to each box without overwriting the IP addresses 
of the .com or confusing them in anyway shape or form.

The setup seems to work nicely (especially since I have a timeout of 1 set 
in /etc/resolv.conf, so fail over occurs quickly if one of the DNS boxes 
is down).  The only negative seems to be that if both boxes are down, DNS 
fails entirely.  However, this is almost the same for any /etc/resolv.conf 
configuration.

What are your thoughts?

Thanks,

Matt