Port 53 Forwarding.

[Ryan Korock]

By default BIND is going to listen on port 53. Although a majority of
DNS traffic will be UDP, BIND will accept both (and there are reasons
such as zone transfers & antiquated resolvers to allow both).

Have you been able to do any low level (tcpdumps, etc) tests to confirm
that the DNS requests are even reaching your DNS server through the
firewall? That would probably be a good place to start.

Regards
Ryan

-----Original Message-----
From: sams [mailto:sams at freeddns.org]=20
Sent: Monday, July 21, 2003 6:34 AM
To: comp-protocols-dns-bind at isc.org
Subject: Port 53 Forwarding.

I made a port 53 forwarding from my firewall to my internal DNS Bind
server. However when I tested from outside firewall with dig tool it
didnt
work. The same command works inside the network, which confirms the DNS
Bind Server is working accordingly.

Now my question is, is ISC Bind server users Port 53 or other? I didnt
change anything while install Bind and Does it use  UDP or TCP?

Appreciate any help.

Thank you

Sam.