North American Network Operators Group
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RE: Odd DNS responses for www.neopets.com
- From: Deepak Jain
- Date: Wed Feb 05 22:43:23 2003
>
> > 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.
>
> This is often used for server pools (as I'm guessing you know).
>
> > It seems to cause problems with Windows clients and/or Windows DNS
> > servers. Seems like overkill.
>
> The 78 addresses listed here are all in one bit of a /24. In the
> cases I've
> seen, there are a few servers listed in several different locations,
> network- (and location-) wise. I agree that this looks really
> weird. Perhaps
> they use it as a cheap load balancer?
>
Perhaps they use it to pad their IP allocations??
DJ
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