outgoing DNS requests not to dns server

From: Andrew F (a_at_b.c)
Date: 08/20/03 

Date: Wed, 20 Aug 2003 09:22:16 +1000

Hi,

In looking at my iptables log (on personal gateway), I've got outdoing
UDP requests on port 53 (dns I believe). Now I've got a rule to allow
lookups from the dns server, but these connections are going to any
number of different hosts. Looks like browsing to sites is making my
gateway is send dns requests to them.

Does anyone have any idea why? Should I be letting these connections
through? Nothing appears to be broken by not letting them through.

For what it's worth, I've got squid and bind9 installed on the gateway
too. Bind9's configured to go to my isp's dns server when it needs to
do a lookup. Machines connecting through the gateway have the gateway
listed as the dns server.

Andy

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