Re: [exim] Odd resolver issue, I think

Góra strony
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Autor: Ted Cooper
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Dla: exim-users
Temat: Re: [exim] Odd resolver issue, I think
Is this even valid??

;; ANSWER SECTION:
5.131.80.194.in-addr.arpa. 7200    IN    PTR    ezproxy2.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    uwrz46.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    *.ezproxy2.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    uwrz05.cymru.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    uwrz15.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    ezproxy.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    *.ezproxy.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    cymru.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    *.test.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    test.wales.ac.uk.
5.131.80.194.in-addr.arpa. 7200    IN    PTR    uwrz46.cymru.ac.uk.


Multiple records are ok, but the * contain records? That really doesn't
seem right. Almost like someone forgot to take into account those kind
of records in the forward lookup zone when writing a script to
automatically create the reverse zone.

All the DNS tools are perfectly fine resolving it but it still seems
bonkers. Ah, but Exim can't .. at least in any test I can throw at it in
a couple of minutes.

Exim shouldn't bug out or error on this - perhaps it should be ignoring
garbage results and just be happy the rest being ok .. except apparently
these aren't garbage results. :/ I can't for the life of me find an RFC
past 1035 (wasn't it deprecated? Or was that the email one) that allows
a * to be part of a valid hostname and hence listed as PTR data.

I'd shoot the person who put all that cruft in the in-addr.arpa zone
file ;) Remove it and Exim should be happy again. I really don't know if
we should consider it a bug in Exim though.