Reverse Lookup Problem
Barry Margolin
barmar at genuity.net
Wed Jan 9 16:06:58 UTC 2002
In article <a1g6ru$ou8 at pub3.rc.vix.com>,
Ian Chilton <ian at ichilton.NOSPAM.co.uk> wrote:
>Hello,
>
>Please reply directly to ian at ichilton.co.uk (remove the .NOSPAM from the
>reply address!!)
>
>Any ideas what's causing this:
>
>[ian at buzz:~]$ su -
>Password:
>[root at buzz:~]# ndc restart
>new pid is 7420
>[root at buzz:~]# logout
>
>[ian at buzz:~]$ host 66.182.11.248
>Host not found, try again.
>
>[ian at buzz:~]$ host 66.182.11.248
>248.11.182.66.IN-ADDR.ARPA is a nickname for 248.al.11.182.66.IN-ADDR.ARPA
>248.al.11.182.66.IN-ADDR.ARPA domain name pointer tigger.ichilton.co.uk
>[ian at buzz:~]$
The reverse domain contains the following NS records:
al.11.182.66.in-addr.arpa. 1D IN NS ns1.alembic.net.
al.11.182.66.in-addr.arpa. 1D IN NS ns2.alembic.net.
al.11.182.66.in-addr.arpa. 1D IN NS dns.pleasurepoint.com.
The two alembic.net servers appear to have the domain loaded, but
dns.pleasurepoint.com doesn't. So the lookups will succeed when they go to
the first two servers, but fail when trying the third.
% dig 248.al.11.182.66.in-addr.arpa ptr @dns.pleasurepoint.com +norec
; <<>> DiG 8.3 <<>> 248.al.11.182.66.in-addr.arpa ptr @dns.pleasurepoint.com +norec
; (1 server found)
;; res options: init defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59987
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 0
;; QUERY SECTION:
;; 248.al.11.182.66.in-addr.arpa, type = PTR, class = IN
;; AUTHORITY SECTION:
al.11.182.66.in-addr.arpa. 12h43m51s IN NS ns1.alembic.net.
al.11.182.66.in-addr.arpa. 12h43m51s IN NS ns2.alembic.net.
;; Total query time: 112 msec
;; FROM: tools.genuity.com to SERVER: dns.pleasurepoint.com 64.51.171.130
;; WHEN: Wed Jan 9 11:04:31 2002
;; MSG SIZE sent: 47 rcvd: 94
--
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.
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