Odd DNS responses for www.neopets.com

Crist J. Clark crist.clark at attbi.com
Fri Feb 7 22:28:49 UTC 2003


David Russell wrote:
> > Maybe it's just me, but isn't there something odd about a DNS query
> > coming back with 78 entries for the same host?  It sends back an UDP
> > packet that gets truncated and the DNS resolver reverts to TCP to get
> > the full list.

[snip]

> >
> > It seems to cause problems with Windows clients and/or Windows DNS
> > servers.  Seems like overkill.
> >
>  I feel your pain because I use a DNS module in my scripts that craps out
> when it sees one of these truncated packets, but then the problem is with
> the client and not DNS.  It is too bad that the DNS packet size can't be
> increased to 1500B.

It can, RFC2671.
-- 
Crist J. Clark                     |     cjclark at alum.mit.edu
                                   |     cjclark at jhu.edu
http://people.freebsd.org/~cjc/    |     cjc at freebsd.org



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