Re: dns resolution problems

[Per olof Ljungmark]

Peter Schoenmaker wrote:

I am having problems resolving hosts with freebsd.  Specificly i have
problems resolving hosts @ united airlines.  These include www.ual.com,
www.united.com, www.ua2go.com, www.itn.net.  Some of them use different
dns servers but they still have the problem.  I have tried to look into
the problem but can't find it.  The problem doesn't occur on solaris
2.8/2.9, or windows.  I am running FreeBSD 4.7 RELEASE, and the box
is not behind a firewall.  I have tried having the box resolve again
multiple DNS servers with the same result.  Does anyone have any ideas,
or are experiencing the same problem?

peter



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Have similar problems here with own servers. For example, www.ual.com does not resolve but ual.com does. Have no explanation at the moment though. Servers are OpenBSD running BIND-8.

bash# dig www.ual.com

; <<>> DiG 2.2 <<>> www.ual.com
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 38129
;; flags: qr rd ra; Ques: 1, Ans: 0, Auth: 0, Addit: 0
;; QUESTIONS:
;; www.ual.com, type = A, class = IN

;; Total query time: 1 msec
;; FROM: as9-2-1.bi.s.bonet.se to SERVER: default -- 127.0.0.1
;; WHEN: Mon Nov 11 21:27:48 2002
;; MSG SIZE sent: 29 rcvd: 29

bash# dig ual.com

; <<>> DiG 2.2 <<>> ual.com
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55825
;; flags: qr rd ra; Ques: 1, Ans: 1, Auth: 7, Addit: 7
;; QUESTIONS:
;; ual.com, type = A, class = IN

;; ANSWERS:
ual.com. 246 A 64.95.89.20

;; AUTHORITY RECORDS:
ual.com. 246 NS gw.ual.com.
ual.com. 246 NS auth100.ns.uu.net.
ual.com. 246 NS auth110.ns.uu.net.
ual.com. 246 NS swhqswd1.ual.com.
ual.com. 246 NS swhqswd2.ual.com.
ual.com. 246 NS swhqswd3.ual.com.
ual.com. 246 NS swhqswd4.ual.com.

;; ADDITIONAL RECORDS:
gw.ual.com. 172130 A 161.215.19.154
auth100.ns.uu.net. 172131 A 198.6.1.202
auth110.ns.uu.net. 137699 A 198.6.1.114
swhqswd1.ual.com. 247 A 161.215.38.8
swhqswd2.ual.com. 247 A 161.215.38.9
swhqswd3.ual.com. 247 A 161.215.38.30
swhqswd4.ual.com. 247 A 161.215.38.31

;; Total query time: 4 msec
;; FROM: as9-2-1.bi.s.bonet.se to SERVER: default -- 127.0.0.1
;; WHEN: Mon Nov 11 21:28:07 2002
;; MSG SIZE sent: 25 rcvd: 31



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