Reverse Dns Problem
 

I have a DNS server running BIND 9.2.2 - I have set up named.conf and the in-addr.arpa for my IP address in this box as a primary DNS server on the internet. :D

The problem is this: Whenever I run a host x.x.x.x or a dig -x x.x.x.x locally from my machine I get the proper NOERROR responses with all the details listed. However, whenever I try to run the same host or dig from another machine not connected to the same ISP network, I get a SERVFAIL error! :mad:

Is the host or dig supposed to resolve the reverse DNS entry from my server's IP address, or is it looking at my ISP's primary and secondary DNS servers for this? :confused:

I can ping my server from the 2nd machine, no problem. When I use my server as my primary DNS on the 2nd machine, no problem. Why is this? Can anyone shed some light here for me?

Thanx!

Hein-ZA,

It is your ISP who is responsible for this, since they "own" the IP address. You will need to contact them if you want the reverse dns lookup to work. No one will query your DNS server unless you "own" the IP address.

Try http://www.arin.net/whois/index.html for IP assignments.

Hope this helps,
chris

Thanks!

Spoke to my ISP and all is OK now! They sorted it out for me and my box is up and running!

Greetz!