rDNS

[Matus UHLAR - fantomas]

On 20.01.17 09:57, Ron Wingfield wrote:
>   I am having difficulty configuring reverse DNS.  This has been a problem
>   for over a year between my server(s) and my ISP, AT&T.  Specifically, I
>   cannot  eMail to any recipient that requires rDNS verification, e.g.,
>   SBCglobal.net, Comcast.net, or AOL.  Very frustrating.

>   . . .why shouldn’t this “point” to my server, 162.202.233.81 and not
>   AT&T’s?

because reverse domains are also tracked from the DNS root:

233.202.162.in-addr.arpa.	7200	IN      SOA	ns1.swbell.net. postmaster.swbell.net. 2016061700 10800 900 604800 3600

81.233.202.162.in-addr.arpa.	7200	IN	CNAME	81.80.233.202.162.in-addr.arpa.

>   I have coded my BIND 9 in-addr.arpa zone file as follows:
>
>   $ORIGIN   233.202.162.in-addr.arpa.

stop defining $ORIGIN in zone file. the $ORIGIN is taken from named "zone"
statement.

According to those above you have to configure zone 80.233.202.162.in-addr.arpa.
and adk swbell.net to fetchit from you.

>   $TTL 3h
>   @       IN   SOA      ns1.archaxis.net.  me.archaxis.net. (
>                             2017012002    ; Serial
>                                   1h      ; Refresh
>                                   1h      ; Retry
>                                   1h      ; Expire
>                                   1h )    ; Negative cashing TTL
>
>                   3600    IN   NS   ns1.archaxis.net.
>                   3600    IN   NS   ns2.archaxis.net.
>
>   80              3600    IN   PTR  network.archaxis.net.
>   81              3600    IN   PTR  alpha.archaxis.net.
>   82              3600    IN   PTR  bravo.archaxis.net.
>   87              3600    IN   PTR  broadcast.archaxis.net.
>
>   What is wrong?  Is this my problem, or with AT&T?



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Matus UHLAR - fantomas, uhlar at fantomas.sk ; http://www.fantomas.sk/
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