is is able to setting up DNS server reverse lookup
on at cs.ait.ac.th
Mon Jul 16 06:08:11 UTC 2007
> >> I'm using dynamicDNS, so I will able to specify the forward *AND*
> >> reverse lookups?
> > Yes.
> No, nobody else is going to see the results your local nameserver
> sends since it isn't authoritative for the domains, and the
> delegation for the IP block isn't going to point to your server but
> to the actual nameserver. Take a look at what happens when someone
> using an external nameserver does the same queries:
For the example I gave, I am of course authoritative.
> Notice the NXDOMAIN response...?
Stange, because I don't get such response, even when querying from
germany to my domain in Thailand. (Could have been a matter of time of
day, Friday 22:00 is busy time in Thailand, the DNS may have been hard
> The answer everyone else gets, VAIO.desktops.cs.ait.ac.th, doesn't
> match alrw17.desktops.cs.ait.ac.th, so a double-reverse lookup check
> would fail.
It could have been a cache issue? Same thing I get correct answer for
a request made from Germany to that Thai domain.
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