dig reveser lookups failing everywhere
enrique at podernet.com.mx
enrique at podernet.com.mx
Fri Jan 24 17:20:06 UTC 2003
On 24 Jan 2003, G. Brown wrote:
=>
=>Havn't done a reverse name lookup using dig for a while so not sure if
=>this is me but dig seems to be failing everywhere I try on all reverse
=>lookups.
=>
=>dig hotmail.com give amongst others 64.4.53.7
=>nslookup 64.4.53.7 provides an answer
=>dig 64.4.53.7 ANY gives nothing
It is because you should use either the -x flag or search the proper record on
the proper domain thus:
dig -x 64.4.53.7
or
dig 7.53.4.64.in-addr.arpa ptr
Remember reverse resolution is based on domain in-addr.arpa and the records
are of type PTR.
; <<>> DiG 9.2.1 <<>> -x 64.4.53.7
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42493
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4
;; QUESTION SECTION:
;7.53.4.64.in-addr.arpa. IN PTR
;; ANSWER SECTION:
7.53.4.64.in-addr.arpa. 1757 IN PTR lc2.law5.hotmail.com.
;; AUTHORITY SECTION:
53.4.64.in-addr.arpa. 23494 IN NS NS1.hotmail.com.
53.4.64.in-addr.arpa. 23494 IN NS NS2.hotmail.com.
53.4.64.in-addr.arpa. 23494 IN NS NS3.hotmail.com.
53.4.64.in-addr.arpa. 23494 IN NS NS4.hotmail.com.
;; ADDITIONAL SECTION:
NS1.hotmail.com. 65317 IN A 216.200.206.140
NS2.hotmail.com. 98117 IN A 216.200.206.139
NS3.hotmail.com. 104009 IN A 209.185.130.68
NS4.hotmail.com. 103877 IN A 64.4.29.24
;; Query time: 258 msec
;; SERVER: 207.248.224.71#53(207.248.224.71)
;; WHEN: Fri Jan 24 11:18:46 2003
;; MSG SIZE rcvd: 210
; <<>> DiG 9.2.1 <<>> 7.53.4.64.in-addr.arpa ptr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22876
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4
;; QUESTION SECTION:
;7.53.4.64.in-addr.arpa. IN PTR
;; ANSWER SECTION:
7.53.4.64.in-addr.arpa. 1693 IN PTR lc2.law5.hotmail.com.
;; AUTHORITY SECTION:
53.4.64.in-addr.arpa. 23430 IN NS NS1.hotmail.com.
53.4.64.in-addr.arpa. 23430 IN NS NS2.hotmail.com.
53.4.64.in-addr.arpa. 23430 IN NS NS3.hotmail.com.
53.4.64.in-addr.arpa. 23430 IN NS NS4.hotmail.com.
;; ADDITIONAL SECTION:
NS1.hotmail.com. 65253 IN A 216.200.206.140
NS2.hotmail.com. 98053 IN A 216.200.206.139
NS3.hotmail.com. 103945 IN A 209.185.130.68
NS4.hotmail.com. 103813 IN A 64.4.29.24
;; Query time: 903 msec
;; SERVER: 207.248.224.71#53(207.248.224.71)
;; WHEN: Fri Jan 24 11:19:51 2003
;; MSG SIZE rcvd: 210
=>
=>Tried this on 4 different syatems in 2 different countries.
=>
=>Redhat 7.3,7.2 and 6.0 and BSD
=>
=>Is this me or has the world gone mad?
=>
=>The world still seems ok from my window so it must be me.
=>
=>Can anyone enlighten me?
=>
=>
--
-- 'You tread upon my patience' -- William Shakespeare, "Henry IV"
The river is within us, the sea is all about us.
===============================================================================
José Enrique Díaz Jolly e-mail: enrique at podernet.com.mx
===============================================================================
@(#) $Id: signature.podernet,v 1.1 2003/01/21 23:45:50 ediaz Exp $
More information about the bind-users
mailing list