Trouble with External Lookups
barmar at alum.mit.edu
Fri Jun 9 03:49:23 UTC 2006
In article <e68bpp$1s5a$1 at sf1.isc.org>, krmdv at netscape.net wrote:
> I can do everything with my IP address except get a reverse lookup off
> of it. I can nslookup connect to the IP address and it responds. I
Hey, remember when I said to use "dig", not "nslookup"?
> found an article on the next that had the same error described with my
> ISP (SBC/ATT). I called SBC and they are putting the reverse
> delegation in for my IP Block. The change should take 24 to 72 hours
> so I should hopefully be good to go. If you can think of anything else
> I can try, please let me know. I havent touched DNS in a couple years
> so things are slowly coming back.
> When I perform nslookup on my ip address outside my network I get Can't
> find IP addy Non Existent Domain. If I do an nslookup 18.104.22.168
> from inside my domain I get:
> ** server can't find 22.214.171.124.in-addr.arpa: NXDOMAIN
> I can run nslookup then connect to the IP address so there doesnt
> appear to be any firewalling issues.
> All of this investigation lead me to the ISP not delegating reverse DNS
> on my IP Block. Let me know if you any thoughts on this being
> something else.
If it works locally but not remotely, then it's probably a delegation
problem. If it doesn't work locally, either, then it may be a problem
with your configuration as well.
I'm having a hard time parsing your message to understand which of these
it is. I don't know what "I can do everything with my IP address except
get a reverse lookup off of it." What else are we discussing other than
reverse lookups, so what is "everything"?
Barry Margolin, barmar at alum.mit.edu
*** PLEASE post questions in newsgroups, not directly to me ***
*** PLEASE don't copy me on replies, I'll read them in the group ***
More information about the bind-users