Two RFC2317 Questions
Will Yardley
william-nospam-newdream-net at no.spam.veggiechinese.net
Thu Apr 11 02:09:42 UTC 2002
In article <a921bg$9o1 at pub3.rc.vix.com>, Barry Margolin wrote:
> Notice that dig defaults to querying for an A record.
>
> When I specify PTR I get the expected result:
>
> % dig -x 216.60.241.0.17 ptr
>
> ; <<>> DiG 8.3 <<>> -x ptr
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 8
> ;; QUERY SECTION:
> ;; 17.0.241.60.216.in-addr.arpa, type = PTR, class = IN
>
> ;; ANSWER SECTION:
> 17.0.241.60.216.in-addr.arpa. 23h59m21s IN PTR csgax.able.anl.gov.
bind9 dig will follow the CNAME:
(9.3 snapshot doesn't even show the cname, although i think 9.2 dig
shows both).
jazz% dig -x 216.60.241.0.17
; <<>> DiG 9.3.0s20020328 <<>> -x 216.60.241.0.17
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33951
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 0
;; QUESTION SECTION:
;17.0.241.60.216.in-addr.arpa. IN PTR
;; ANSWER SECTION:
17.0.241.60.216.in-addr.arpa. 86400 IN PTR csgax.able.anl.gov.
;; AUTHORITY SECTION:
0.241.60.216.in-addr.arpa. 86400 IN NS dns2.anl.gov.
0.241.60.216.in-addr.arpa. 86400 IN NS ns1.swbell.net.
0.241.60.216.in-addr.arpa. 86400 IN NS ns2.es.net.
0.241.60.216.in-addr.arpa. 86400 IN NS ns2.swbell.net.
0.241.60.216.in-addr.arpa. 86400 IN NS nsx.lbl.gov.
0.241.60.216.in-addr.arpa. 86400 IN NS dns1.anl.gov.
;; Query time: 902 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Apr 10 19:08:59 2002
;; MSG SIZE rcvd: 205
--
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