[dns-operations] Diffing tools for zones?

[Paul Vixie]

> Date: Thu, 19 Aug 2010 17:40:22 -0500
> From: John Kristoff <jtk at cymru.com>
> 
> I'd be curious what people are using or novel ideas to diff two very
> large zone files, like .com.

i use "dig ... axfr" from a bind9 server since it will get the zone
in "dnssec order".  then i do it again the next day and run "diff"
with some "grep -v" tossed in to avoid printing timestamp differences.