[uug] DNS and IPTables

[Andrew Jacobs]

I'm trying to set up a simple DNS server, but somehow I can't figure 
out what's going on with my IPTables--they seem to be stopping DNS 
traffic from passing through.  If I stop my IPTables, the DNS works 
just fine.  Also if I query locally, it works as well.  Here's the 
command I've entered:

iptables -A INPUT -p tcp -i eth0 --destination-port 53 -j ACCEPT

Shouldn't that be enough?  Doing a tcpdump reveals a prompt "udp port 
domain unreachable [tos 0xc0] "

-Andrew

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