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Re: Dropping Bogus Replies

From: Sigurdur Ragnarsson
Date: Friday, June 25, 1999
Time: 4:58:00 pm

On 24.6.1999 at 19:53, QuickDNS@fsdb.k12.fl.us (QuickDNS) wrote:

> Recently I have been noticing quite a few entries in the QuickDNS log file
> stating:
>
> "Dropping bogus reply from..." followed by an IP address which resolves to
> various root servers.
>
> There will be a group of eight or nine of these entries happening
> throughout the day at one or two hour intervals.
>
> What's causing this? I don't think it was happening a week ago.
>
> Bob Spiecker
> Network Administrator
> Florida School for the Deaf and Blind

A bogus reply is a reply to a query that QuickDNS Pro did not send. It most
often happens when a server sends a response twice to a single query.

Bogus replies happen very frequently and shouldn't be regarded as a problem,
but if your log is filled with them, and most or all from the same servers, you
should try to find out why these servers are sending you replies to queries you
didn't ask (you might have to contact the administrators for those servers for
details).

I hope this helps.


---
Sigurdur Ragnarsson Men & Mice.
siggi@menandmice.com http://www.menandmice.com



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