Check that www.chula.ac.th exists for IPv4 in case we have a typo on the domain name. Use dig to query the local name server (::1).


; <<>> DiG 9.4.1-P1 <<>> +trace +all chula.ac.th soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1159
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; AUTHORITY SECTION:
.			3600000	IN	NS	B.ROOT-SERVERS.NET.
.			3600000	IN	NS	L.ROOT-SERVERS.NET.
.			3600000	IN	NS	G.ROOT-SERVERS.NET.
.			3600000	IN	NS	C.ROOT-SERVERS.NET.
.			3600000	IN	NS	A.ROOT-SERVERS.NET.
.			3600000	IN	NS	D.ROOT-SERVERS.NET.
.			3600000	IN	NS	F.ROOT-SERVERS.NET.
.			3600000	IN	NS	E.ROOT-SERVERS.NET.
.			3600000	IN	NS	J.ROOT-SERVERS.NET.
.			3600000	IN	NS	K.ROOT-SERVERS.NET.
.			3600000	IN	NS	I.ROOT-SERVERS.NET.
.			3600000	IN	NS	H.ROOT-SERVERS.NET.
.			3600000	IN	NS	M.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	438178	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	438178	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	396442	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	138836	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	135390	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	135390	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	393762	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	439049	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	134785	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	439713	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	396751	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	396751	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	438285	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	438285	IN	AAAA	2001:7fe::53

;; Query time: 13 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 12:17:06 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 987
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 12

;; QUESTION SECTION:
;chula.ac.th.			IN	SOA

;; AUTHORITY SECTION:
th.			172800	IN	NS	sfba.sns-pb.isc.org.
th.			172800	IN	NS	dns1.thnic.co.th.
th.			172800	IN	NS	ns-e.thnic.co.th.
th.			172800	IN	NS	th.cctld.authdns.ripe.net.
th.			172800	IN	NS	ns-a.thnic.co.th.
th.			172800	IN	NS	ams.sns-pb.isc.org.
th.			172800	IN	NS	ns.thnic.net.

;; ADDITIONAL SECTION:
ns.thnic.net.		172800	IN	A	202.28.0.1
th.cctld.authdns.ripe.net. 172800 IN	A	193.0.9.116
ams.sns-pb.isc.org.	172800	IN	A	199.6.1.30
dns1.thnic.co.th.	172800	IN	A	202.28.1.22
ns-a.thnic.co.th.	172800	IN	A	61.19.242.38
ns-e.thnic.co.th.	172800	IN	A	194.0.1.28
sfba.sns-pb.isc.org.	172800	IN	A	149.20.64.3
th.cctld.authdns.ripe.net. 172800 IN	AAAA	2001:67c:e0::116
ams.sns-pb.isc.org.	172800	IN	AAAA	2001:500:60::30
dns1.thnic.co.th.	172800	IN	AAAA	2001:3c8:1209:1::22
ns-e.thnic.co.th.	172800	IN	AAAA	2001:678:4::1c
sfba.sns-pb.isc.org.	172800	IN	AAAA	2001:4f8:0:2::19

;; Query time: 128 msec
;; SERVER: 192.112.36.4#53(G.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 12:17:07 2012
;; MSG SIZE  rcvd: 460

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 521
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 2

;; QUESTION SECTION:
;chula.ac.th.			IN	SOA

;; AUTHORITY SECTION:
chula.ac.th.		7200	IN	NS	ns.thnic.net.
chula.ac.th.		7200	IN	NS	ns.netserv.chula.ac.th.
chula.ac.th.		7200	IN	NS	explorer.netserv.chula.ac.th.

;; ADDITIONAL SECTION:
ns.netserv.chula.ac.th.	7200	IN	A	161.200.192.4
explorer.netserv.chula.ac.th. 7200 IN	A	161.200.192.200

;; Query time: 167 msec
;; SERVER: 2001:3c8:1209:1::22#53(dns1.thnic.co.th)
;; WHEN: Fri May 18 12:17:07 2012
;; MSG SIZE  rcvd: 135

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 722
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 1

;; QUESTION SECTION:
;chula.ac.th.			IN	SOA

;; ANSWER SECTION:
chula.ac.th.		3600	IN	SOA	ns.netserv.chula.ac.th. netmaster.netserv.chula.ac.th. 2012032800 43200 10800 1209600 3600

;; AUTHORITY SECTION:
chula.ac.th.		3600	IN	NS	ns.netserv.chula.ac.th.
chula.ac.th.		3600	IN	NS	explorer.netserv.chula.ac.th.
chula.ac.th.		3600	IN	NS	ns.thnic.net.

;; ADDITIONAL SECTION:
ns.thnic.net.		7200	IN	A	202.28.0.1

;; Query time: 111 msec
;; SERVER: 202.28.0.1#53(ns.thnic.net)
;; WHEN: Fri May 18 12:17:07 2012
;; MSG SIZE  rcvd: 165

HTTP

Looking for CNAME of www.chula.ac.th
Checking if there is a AAAA for www.chula.ac.th ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.chula.ac.th aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1677
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.chula.ac.th.		IN	AAAA

;; AUTHORITY SECTION:
chula.ac.th.		3600	IN	SOA	ns.netserv.chula.ac.th. netmaster.netserv.chula.ac.th. 2012032800 43200 10800 1209600 3600

;; Query time: 13 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 12:17:08 2012
;; MSG SIZE  rcvd: 90

Checking other options ... failed too.

SMTP

MX 10 mail-gw1.it.chula.ac.th
Looking for AAAA on mail-gw1.it.chula.ac.th

DNS

Looking for AAAA of NS ns.netserv.chula.ac.th
No AAAA record for ns.netserv.chula.ac.th
Looking for AAAA of NS explorer.netserv.chula.ac.th
No AAAA record for explorer.netserv.chula.ac.th
Looking for AAAA of NS ns.thnic.net
No AAAA record for ns.thnic.net

NTP

Looking for an A record for ntp.chula.ac.th
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for ntp.chula.ac.th
Cannot find a AAAA record for ntp.ipv6.chula.ac.th

XMPP

Looking for a SRV record for _xmpp-client._tcp.chula.ac.th
Looking for a SRV record for _xmpp-server._tcp.chula.ac.th

Last Updated: Fri May 18 02:47:10 2012 UTC