Reverse lookups not working when Internet connection failed.

[David Carvalho]

Hello, good afternoon.

We've had an internet failure for a few days last week and as services got
online I found the following:

 

Dns queries about my.domain from my.domain  worked as expected. Since there
was no internet connection, I obviously couldn't  query the outside world.

Reverse (PTR) Dns queries about my.domain from my.domain didn't work. Now
that the internet connection is restored, everything is ok.

 

The reverse entries are in the format  "z.y.x.in-addr.arpa."    for IP x.y.z

Aren't they supposed to work locally when no outside connection is
available? What could I be missing?

 

Thanks and regards.

David

 

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