batch reverse dns lookup

[Richard Peiper]

	Say I have an entry in my DNS which points to a machine which no
longer exists. And I don't take it out because I am lazy and can't manage my
DNS properly? In theory you could make a much more complex system of
nslookup with reverse mapping and then a ping test to generate a status for
each entry... Hmm... considering the state of the DNS server I inherited I
might just have to look into that one.

	Richard


-----Original Message-----
From: Barry Margolin [mailto:barmar at alum.mit.edu] 
Sent: Monday, June 14, 2004 5:08 PM
To: comp-protocols-dns-bind at isc.org
Subject: Re: batch reverse dns lookup

In article <cal086$1pka$1 at sf1.isc.org>,
 Richard Peiper <rpeiper at waca.com> wrote:

> 	Actually that is a really good idea except how do you distinguish a
> valid A record entry from a stale A record entry?

What do you mean by "stale A record entry"?  Unless your caching server 
retains records beyond their TTLs, there's no such thing.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***