reverse resolution failing

[Matus UHLAR - fantomas]

>Jim Pazarena <bind at paz.bz> wrote:
>>
>> while it can resolve "webmail.acrodex.com" ( 139.142.184.10 )
>> it cannot reverse resolve 139.142.184.10

On 07.02.13 17:51, Tony Finch wrote:
>10.184.142.139.in-addr.arpa. CNAME 10.0-25.184.142.139.in-addr.arpa.
>
>0-25.184.142.139.in-addr.arpa. NS pluto.acrodex.com.
>0-25.184.142.139.in-addr.arpa. NS nova.acrodex.com.
>0-25.184.142.139.in-addr.arpa. NS saturn.acrodex.com.
>
>Nova does not exist.
>
>Pluto refuses most questions for 10.0-25.184.142.139.in-addr.arpa except
>if you ask for a PTR, in which case it replies with a bogus question
>section containing 139.0.184.142.in-addr.arpa.
>
>Saturn works OK for most questions, and returns a PTR record if you ask
>for ANY, but if you request a PTR directly it ignores you.

some kind of lame DNS "load balancers"?

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