Problem with sakon.com.sg
Khoo Boon Hing
bhkhoo at nic.net.sg
Tue Oct 19 12:37:35 UTC 1999
Hi,
One of our customer has this problem of getting connection timed out when
querying for records other that 'any' and 'soa' on host1.sakon.com.sg and
host2.sakon.com.sg :
% dig @host1.sakon.com.sg host1.sakon.com.sg a
; <<>> DiG 8.2 <<>> @host1.sakon.com.sg host1.sakon.com.sg a
; (1 server found)
;; res options: init recurs defnam dnsrch
;; res_nsend to server host1.sakon.com.sg 203.116.235.67: Connection timed out
But when asking for 'and' or 'soa', it looks completely normal :
% dig @host1.sakon.com.sg sakon.com.sg soa
; <<>> DiG 8.2 <<>> @host1.sakon.com.sg sakon.com.sg soa
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
;; QUERY SECTION:
;; sakon.com.sg, type = SOA, class = IN
;; ANSWER SECTION:
sakon.com.sg. 1D IN SOA host1.sakon.com.sg. root.host1.sakon.com.sg. (
1999101419 ; serial
3H ; refresh
1H ; retry
1W ; expiry
1D ) ; minimum
;; AUTHORITY SECTION:
sakon.com.sg. 1D IN NS host1.sakon.com.sg.
sakon.com.sg. 1D IN NS host2.sakon.com.sg.
sakon.com.sg. 1D IN NS ss.nic.net.sg.
;; ADDITIONAL SECTION:
host1.sakon.com.sg. 1D IN A 203.116.235.67
host2.sakon.com.sg. 1D IN A 203.116.235.68
ss.nic.net.sg. 16h46m54s IN A 202.42.194.208
;; Total query time: 51 msec
;; FROM: ast.nic.net.sg to SERVER: host1.sakon.com.sg 203.116.235.67
;; WHEN: Tue Oct 19 20:19:44 1999
;; MSG SIZE sent: 30 rcvd: 186
Asking for bind version, it's able to answer :
% dig @host1.sakon.com.sg version.bind chaos txt
; <<>> DiG 8.2 <<>> @host1.sakon.com.sg version.bind chaos txt
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUERY SECTION:
;; version.bind, type = TXT, class = CHAOS
;; ANSWER SECTION:
VERSION.BIND. 0S CHAOS TXT "8.1.2-T3B"
;; Total query time: 37 msec
;; FROM: ast.nic.net.sg to SERVER: host1.sakon.com.sg 203.116.235.67
;; WHEN: Tue Oct 19 20:31:17 1999
;; MSG SIZE sent: 30 rcvd: 64
There's no problem for the third name server ss.nic.net.sg.
Any idea what could be wrong ? The two servers are behind firewall, but only
certain types of dns query get timed out. Please help.
Thanks in advance.
bh khoo
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