Reverse DNS problems
Mark.Andrews at nominum.com
Mark.Andrews at nominum.com
Sun Oct 15 22:47:41 UTC 2000
Len, They have performed a classless delegation. Here are
the NS records from there servers.
32.34.219.64.in-addr.arpa. 2H IN NS r65.org.
32.34.219.64.in-addr.arpa. 2H IN NS littlebrother.r65.org.
32.34.219.64.in-addr.arpa. 2H IN NS ns1.swbell.net.
32.34.219.64.in-addr.arpa. 2H IN NS ns2.swbell.net.
James, call your zone 32.34.219.64.in-addr.arpa in named.conf
and populate it with the following.
$TTL 86400
@ SOA r65.org. sloth.r65.org. (
2000100414 ; serial
10800 ; refresh
3600 ; retry
604800 ; expire
86400 ; default_ttl
)
NS r65.org.
NS littlebrother.r65.org.
NS ns1.swbell.net.
NS ns2.swbell.net.
33 PTR public2.r65.org.
34 PTR public.r65.org.
35 PTR r65gate1.r65.org.
This works because your ISP has added CNAMES in 34.219.64.in-addr.arpa
which point into 32.34.219.64.in-addr.arpa.
Mark
>
>
> >Your SBIS assigned IP block of :: 64.219.34.32/29
> >
> >has been delegated to your DNS server for the reverse
> >
> >in-addr lookups. This is RFC2317 < class C DEFANGED_STYLEreverse delegation.
> >
> >The in-addr zone has been delegated to:
> >
> >r65.org 64.219.34.34
>
> Maybe in the paperwork, as you can see here:
>
> http://www.samspade.org/t/lookat.cgi?address=64.219.34.34&ipblock=on
>
> but not technically ...
>
> dig -x 64.219.34.34
>
> says they haven't done it in their DNS.
>
> And this:
>
> http://www.samspade.org/t/dnl.cgi?a=64.219.34.34
>
> shows your ip's PTR in not in their reverse zone anymore
>
> And here's some progress:
>
> # dig -x 64.219.34.34 soa
>
> ; <<>> DiG 8.2 <<>> -x soa
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 4
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
> ;; QUERY SECTION:
> ;; 34.34.219.64.in-addr.arpa, type = SOA, class = IN
>
> ;; ANSWER SECTION:
> 34.34.219.64.in-addr.arpa. 1h34m28s IN CNAME 34.32.34.219.64.in-addr.arpa.
>
> ;; AUTHORITY SECTION:
> 34.219.64.in-addr.arpa. 0S IN SOA r65.org.
> sloth.r65.org.34.219.64.in-addr.arpa. (
> 2000100414 ; serial
> 3H ; refresh
> 1H ; retry
> 1W ; expiry
> 1D ) ; minimum
>
>
> Len
>
>
> http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
> http://IMGate.MEIway.com: Build free, hi-perf, anti-spam mail gateways
>
>
>
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
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