[PLUG] dns monitor

[nathan w]

Sorry if i gave the impression i was withholding info based on suspicions of nefarious purposes. I've seen enough of wes' posts on here to know better, but was honestly baffled about what legitimate purpose could be served by knowing more about a dns update than "72 hrs for delegation changes, 15 min for zone updates".

Being in customer service, i should have guessed that an unreasonable client was behind it all.

Regards,

Nathan

----- Reply message -----
From: "Robert Munro" <ramunro at speakeasy.net>
To: <plug at lists.pdxlinux.org>
Subject: [PLUG] dns monitor
Date: Tue, Jul 26, 2011 1:41 pm


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On Tue, 26 Jul 2011 10:07:03 -0700 nathan w wrote:
> 
> Why? This query reminds me of an article i read describing the
> process of dns poisoning by pushing "updates" to a dns server at the
> moment it updates... So again... Why do you want this?
> 
>> On Tue, Jul 26, 2011 8:43 am wes wrote:
>> 
>> Does anyone know of a tool that can monitor DNS replies and notify
>> on success/failure?
>> 
>> Basically, I want to find out the moment a DNS server (that I do
>> not control) has updated.

Well, I think that unless we have evidence to the contrary we should
consider everyone interested in Linux technology for honorable goals.

Any technique can be used for good or ill, starting with flint knives
and proceeding all the way up to quantum physics. CERN runs on Linux.

wes - I believe the command 'dig' might let you find out when any DNS
server has been updated. Run it as a cron job every five minute or so
and pipe its output to /var/log/messages, or something. I'd use that.

R




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