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DNS ports

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by allen

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Any one know what ports IP,UPD should be left open fot DNS NT4 and what ports should be closed,and what kind og TCP alowed

5 replies

by allen

I appreciat the help, I do have the list of all ports but I was looking for more specific asnwer as port #1,2.. somethignlike that but I appreciate the help though

by turambar386

DNS queries use UDP port 53. You will need to open this port.

DNS zone transfers use TCP port 53. Unless you are doing zone transfers through your firewall, you should keep this port closed.

by allen

I am aware of that , the problem if you close all theport and open only 53TCP and UPD. your RPC will not work and it will not cennect with the DNS manager, but I realy appreciate the help and thank you

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