Date: Thu, 14 Oct 1999 11:24:42 +0200 From: Vadim Chekan <vadim@gc.lviv.ua> To: "stable@FreeBSD.ORG" <stable@FreeBSD.ORG> Subject: Resolver in FreeBSD-3.[12] is broken? Message-ID: <3805A15A.FFA7934D@gc.lviv.ua>
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Hi
It seems, FreeBSD-3.[12] doesn't support RFC-2317 (Classless
IN-ADDR.ARPA delegation)
From FreeBSD-3.2 (I checked this on 4 machines)
=========================================================
bash-2.03$ host 212.109.34.132
132.34.109.212.IN-ADDR.ARPA is a nickname for
132.34.109.212.cscd.lviv.ua
=========================================================
From FreeBSD-2.2.8 (this is the right ansver)
=========================================================
bash-2.02$ host 212.109.34.132
Name: extra.gc.lviv.ua
Address: 212.109.34.132
Aliases:
bash-2.02$
=========================================================
Different FreeBSDs resolves the same IP in different ways!
Ok, turn on debug information on 3.2
=========================================================
host -d -v 212.109.34.132
;; res_mkquery(0, 132.34.109.212.IN-ADDR.ARPA., 1, 12)
;; res_send()
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30587
;; flags: rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; 132.34.109.212.IN-ADDR.ARPA, type = PTR, class = IN
;; Querying server (# 1) address = 195.5.56.19
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30587
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 2
;; 132.34.109.212.IN-ADDR.ARPA, type = PTR, class = IN
132.34.109.212.IN-ADDR.ARPA. 9h25m52s IN CNAME
132.34.109.212.cscd.lviv.ua.
132.34.109.212.cscd.lviv.ua. 14h37m49s IN PTR extra.gc.lviv.ua.
cscd.lviv.ua. 23h31m46s IN NS ns.cscd.lviv.ua.
cscd.lviv.ua. 23h31m46s IN NS ns.lviv.gu.net.
ns.cscd.lviv.ua. 23h31m46s IN A 195.5.56.1
ns.lviv.gu.net. 11h38m41s IN A 195.123.17.1
rcode = 0 (Success), ancount=2
The following answer is not authoritative:
132.34.109.212.IN-ADDR.ARPA 33952 IN CNAME
132.34.109.212.cscd.lviv.ua
132.34.109.212.cscd.lviv.ua 52669 IN PTR extra.gc.lviv.ua
For authoritative answers, see:
cscd.lviv.ua 84706 IN NS ns.cscd.lviv.ua
cscd.lviv.ua 84706 IN NS ns.lviv.gu.net
Additional information:
ns.cscd.lviv.ua 84706 IN A 195.5.56.1
ns.lviv.gu.net 41921 IN A 195.123.17.1
================================================================
But it has all information necessary to sucessful resolving.
132.34.109.212.IN-ADDR.ARPA. 9h25m52s IN CNAME
132.34.109.212.cscd.lviv.ua.
132.34.109.212.cscd.lviv.ua. 14h37m49s IN PTR extra.gc.lviv.ua.
^^^^^^^^^^^^^^^^^ here's
the ansver!
Can anyone comment this situation?
Vadim Chekan.
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