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DNS Problem

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3 replies

by joshg 1 view

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We have turned on Packet filtering on our WEB/DNS/Proxy Server and now we cannot access the site by DNS name only IP. I have entered the BOTH UDP DNS entry into the Packet Filter Exceptions list. There are two other sites that this box does DNS for that are now unreachable by DNS. E-mail for these domains will not get resolved either.

This is a WINNT4 SP6a box with Proxy 2.0 SP2 and IIS4

3 replies

by cavedweller

It sounds like you are blocking the DNS port (53/tcp). You seem to have enabled 53/udp already. Add an exception for 53/tcp.

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