udp vs tcp query
WBrown at e1b.org
WBrown at e1b.org
Mon Oct 24 13:20:25 UTC 2011
Kevin wrote on 10/22/2011 11:42:08 PM:
> > remote server is rbldnsd with is not supporting tcp, how to solve this
?
>
> You have a badly broken DNS if it does not support TCP. You need to
> fix this. Anything else is a band-aid that will just keep breaking
> things.
If it is a general purpose DNS server running rbldnsd, then yes, it is
broken. If it is simply serving up DNS based blacklists, rbldnsd is a
reasonable choice. It should only be getting A requests (Are any RBLs
doing IPv6?) so any traffic should easily fit in a UDP packet.
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