Check that www.uni.net.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 uni.net.th soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 668
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			231634	IN	NS	b.root-servers.net.
.			231634	IN	NS	h.root-servers.net.
.			231634	IN	NS	k.root-servers.net.
.			231634	IN	NS	l.root-servers.net.
.			231634	IN	NS	d.root-servers.net.
.			231634	IN	NS	i.root-servers.net.
.			231634	IN	NS	c.root-servers.net.
.			231634	IN	NS	j.root-servers.net.
.			231634	IN	NS	m.root-servers.net.
.			231634	IN	NS	g.root-servers.net.
.			231634	IN	NS	a.root-servers.net.
.			231634	IN	NS	f.root-servers.net.
.			231634	IN	NS	e.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	100957	IN	A	198.41.0.4
a.root-servers.net.	100957	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	59221	IN	A	192.228.79.201
c.root-servers.net.	447005	IN	A	192.33.4.12
d.root-servers.net.	405354	IN	A	128.8.10.90
d.root-servers.net.	405354	IN	AAAA	2001:500:2d::d
e.root-servers.net.	56541	IN	A	192.203.230.10
f.root-servers.net.	101828	IN	A	192.5.5.241
f.root-servers.net.	406704	IN	AAAA	2001:500:2f::f
g.root-servers.net.	102492	IN	A	192.112.36.4
h.root-servers.net.	59530	IN	A	128.63.2.53
h.root-servers.net.	59530	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	101064	IN	A	192.36.148.17
i.root-servers.net.	101064	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 09:57:27 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1406
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 12

;; QUESTION SECTION:
;uni.net.th.			IN	SOA

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

;; 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: 248 msec
;; SERVER: 2001:500:1::803f:235#53(h.root-servers.net)
;; WHEN: Tue May 22 09:57:28 2012
;; MSG SIZE  rcvd: 461

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 544
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 2

;; QUESTION SECTION:
;uni.net.th.			IN	SOA

;; AUTHORITY SECTION:
uni.net.th.		7200	IN	NS	ns.netserv.chula.ac.th.
uni.net.th.		7200	IN	NS	mars.uni.net.th.
uni.net.th.		7200	IN	NS	mercury.uni.net.th.

;; ADDITIONAL SECTION:
mars.uni.net.th.	7200	IN	A	202.28.18.65
mercury.uni.net.th.	7200	IN	A	202.28.18.2

;; Query time: 646 msec
;; SERVER: 2001:4f8:0:2::19#53(sfba.sns-pb.isc.org)
;; WHEN: Tue May 22 09:57:29 2012
;; MSG SIZE  rcvd: 135

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1024
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 6

;; QUESTION SECTION:
;uni.net.th.			IN	SOA

;; ANSWER SECTION:
uni.net.th.		14400	IN	SOA	mercury.uni.net.th. noc.uni.net.th. 2012051002 3600 900 604800 86400

;; AUTHORITY SECTION:
uni.net.th.		14400	IN	NS	ns.netserv.chula.ac.th.
uni.net.th.		14400	IN	NS	mercury.uni.net.th.
uni.net.th.		14400	IN	NS	ns3.uni.net.th.
uni.net.th.		14400	IN	NS	mars.uni.net.th.

;; ADDITIONAL SECTION:
ns.netserv.chula.ac.th.	86400	IN	A	161.200.192.4
ns3.uni.net.th.		14400	IN	A	202.28.112.9
ns3.uni.net.th.		14400	IN	AAAA	2001:3c8:e100:1024::9
mars.uni.net.th.	14400	IN	A	202.28.18.65
mercury.uni.net.th.	14400	IN	A	202.28.18.2
mercury.uni.net.th.	14400	IN	AAAA	2001:3c8:e100:1019::48

;; Query time: 112 msec
;; SERVER: 161.200.192.4#53(ns.netserv.chula.ac.th)
;; WHEN: Tue May 22 09:57:29 2012
;; MSG SIZE  rcvd: 281

HTTP

Looking for CNAME of www.uni.net.th
Checking if there is a AAAA for www.uni.net.th ... success.
Sending...

HEAD / HTTP/1.1
Host: www.uni.net.th
User-Agent: ipv6-survey.pl/1.97 http://www.mrp.net/IPv6_Survey.html

Reading ...

HTTP/1.1 200 OK
Date: Tue, 22 May 2012 00:20:51 GMT
Server: Apache/2.2.14 (FreeBSD) mod_ssl/2.2.14 OpenSSL/0.9.8k DAV/2 PHP/5.2.12 with Suhosin-Patch
Last-Modified: Tue, 10 Apr 2012 06:16:22 GMT
ETag: "187015-920-4bd4d0fcbf980"
Accept-Ranges: bytes
Content-Length: 2336
Content-Type: text/html

Accessed / [2001:3c8:e100:1024:0:0:0:3] Response: HTTP/1.1 200 OK

SMTP

MX 10 venus.uni.net.th
Looking for AAAA on venus.uni.net.th

DNS

Looking for AAAA of NS mars.uni.net.th
No AAAA record for mars.uni.net.th
Looking for AAAA of NS ns.netserv.chula.ac.th
No AAAA record for ns.netserv.chula.ac.th
Looking for AAAA of NS ns3.uni.net.th
Querying 2001:3c8:e100:1024:0:0:0:9 for SOA of uni.net.th over IPv6 ... FAILED
Looking for AAAA of NS mercury.uni.net.th
Querying 2001:3c8:e100:1019:0:0:0:48 for SOA of uni.net.th over IPv6 ... successful!

NTP

Looking for an A record for ntp.uni.net.th
Found an A or AAAA record. Now looking for a AAAA.
ntpdate -sq ntp.uni.net.th (2001:3c8:e100:1024:0:0:0:4)
server 2001:3c8:e100:1024::4, stratum 2, offset 0.034097, delay 0.20329

XMPP

Looking for a SRV record for _xmpp-client._tcp.uni.net.th
Looking for a SRV record for _xmpp-server._tcp.uni.net.th

Last Updated: Tue May 22 00:27:33 2012 UTC