Reverse DNS port

[achilleus]

Thanks in advance for any help you can offer.

I think my firewall is blocking reverse DNS lookups. I am trying to determine what port that would use. Is it just 53? Or is there another port or ports that I should be allowing for reverse dns?

Thanks. AJ
SA
HS

 

[Tels]

I think it uses the standard DNS port... please correct me if I am wrong..

Try using NSLOOKUP if you are using NT.... Mixed Linux/Win2000 Network Administrator

 

[CCIEWANNABE]

mdns Multicast DNS 5353/tcp
ddns-v3 Dynamic DNS Version 3 2164/tcp
ddns-v3 Dynamic DNS Version 3 2164/udp
ddt Dynamic DNS Tools 1052/tcp
ddt Dynamic DNS Tools 1052/udp
name Host Name Server 42/tcp
name Host Name Server 42/udp
nameserver Host Name Server 42/tcp
nameserver Host Name Server 42/udp
nicname Who Is 43/tcp
nicname Who Is 43/udp
domain Domain Name Server 53/tcp
domain Domain Name Server 53/udp


Route once; switch many