Check that www.tanet2.net.tw 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 tanet2.net.tw soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 279
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			236453	IN	NS	g.root-servers.net.
.			236453	IN	NS	h.root-servers.net.
.			236453	IN	NS	b.root-servers.net.
.			236453	IN	NS	l.root-servers.net.
.			236453	IN	NS	a.root-servers.net.
.			236453	IN	NS	d.root-servers.net.
.			236453	IN	NS	k.root-servers.net.
.			236453	IN	NS	f.root-servers.net.
.			236453	IN	NS	e.root-servers.net.
.			236453	IN	NS	c.root-servers.net.
.			236453	IN	NS	j.root-servers.net.
.			236453	IN	NS	i.root-servers.net.
.			236453	IN	NS	m.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	105776	IN	A	198.41.0.4
a.root-servers.net.	105776	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	64040	IN	A	192.228.79.201
c.root-servers.net.	451824	IN	A	192.33.4.12
d.root-servers.net.	410173	IN	A	128.8.10.90
d.root-servers.net.	410173	IN	AAAA	2001:500:2d::d
e.root-servers.net.	61360	IN	A	192.203.230.10
f.root-servers.net.	106647	IN	A	192.5.5.241
f.root-servers.net.	411523	IN	AAAA	2001:500:2f::f
g.root-servers.net.	107311	IN	A	192.112.36.4
h.root-servers.net.	64349	IN	A	128.63.2.53
h.root-servers.net.	64349	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	105883	IN	A	192.36.148.17
i.root-servers.net.	105883	IN	AAAA	2001:7fe::53

;; Query time: 15 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 08:37:09 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 170
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 10, ADDITIONAL: 14

;; QUESTION SECTION:
;tanet2.net.tw.			IN	SOA

;; AUTHORITY SECTION:
tw.			172800	IN	NS	a.dns.tw.
tw.			172800	IN	NS	b.dns.tw.
tw.			172800	IN	NS	c.dns.tw.
tw.			172800	IN	NS	d.dns.tw.
tw.			172800	IN	NS	e.dns.tw.
tw.			172800	IN	NS	f.dns.tw.
tw.			172800	IN	NS	g.dns.tw.
tw.			172800	IN	NS	h.dns.tw.
tw.			172800	IN	NS	ns.twnic.net.
tw.			172800	IN	NS	sec4.apnic.net.

;; ADDITIONAL SECTION:
a.dns.tw.		172800	IN	A	203.73.24.8
b.dns.tw.		172800	IN	A	210.201.138.58
c.dns.tw.		172800	IN	A	61.220.48.1
d.dns.tw.		172800	IN	A	210.17.9.230
e.dns.tw.		172800	IN	A	211.79.207.26
f.dns.tw.		172800	IN	A	163.28.1.10
g.dns.tw.		172800	IN	A	220.229.225.195
h.dns.tw.		172800	IN	A	203.119.3.1
ns.twnic.net.		172800	IN	A	192.83.166.11
sec4.apnic.net.		172800	IN	A	202.12.31.141
a.dns.tw.		172800	IN	AAAA	2001:cd8:800::8
b.dns.tw.		172800	IN	AAAA	2404:0:10a0::58
c.dns.tw.		172800	IN	AAAA	2001:b020:0:77::1
d.dns.tw.		172800	IN	AAAA	2001:c50:ffff:1::230

;; Query time: 24 msec
;; SERVER: 192.203.230.10#53(e.root-servers.net)
;; WHEN: Tue May 22 08:37:09 2012
;; MSG SIZE  rcvd: 488

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 962
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 8, ADDITIONAL: 10

;; QUESTION SECTION:
;tanet2.net.tw.			IN	SOA

;; AUTHORITY SECTION:
net.tw.			86400	IN	NS	d.twnic.net.tw.
net.tw.			86400	IN	NS	e.twnic.net.tw.
net.tw.			86400	IN	NS	f.twnic.net.tw.
net.tw.			86400	IN	NS	g.twnic.net.tw.
net.tw.			86400	IN	NS	ns2.cuhk.edu.hk.
net.tw.			86400	IN	NS	a.twnic.net.tw.
net.tw.			86400	IN	NS	b.twnic.net.tw.
net.tw.			86400	IN	NS	c.twnic.net.tw.

;; ADDITIONAL SECTION:
a.twnic.net.tw.		86400	IN	A	192.83.166.9
a.twnic.net.tw.		86400	IN	AAAA	2001:288:1:1006:21b:fcff:fe41:6c81
b.twnic.net.tw.		86400	IN	A	203.73.24.203
b.twnic.net.tw.		86400	IN	AAAA	2001:cd8:800::203
c.twnic.net.tw.		86400	IN	A	168.95.192.10
d.twnic.net.tw.		86400	IN	A	210.17.9.229
d.twnic.net.tw.		86400	IN	AAAA	2001:c50:ffff:1::229
e.twnic.net.tw.		86400	IN	A	211.79.207.25
f.twnic.net.tw.		86400	IN	A	220.229.225.196
g.twnic.net.tw.		86400	IN	A	203.119.3.2

;; Query time: 230 msec
;; SERVER: 2001:b020:0:77::1#53(c.dns.tw)
;; WHEN: Tue May 22 08:37:10 2012
;; MSG SIZE  rcvd: 374

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1108
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;tanet2.net.tw.			IN	SOA

;; AUTHORITY SECTION:
tanet2.net.tw.		86400	IN	NS	nstt.twaren.net.
tanet2.net.tw.		86400	IN	NS	nshc.twaren.net.

;; Query time: 223 msec
;; SERVER: 220.229.225.196#53(f.twnic.net.tw)
;; WHEN: Tue May 22 08:37:10 2012
;; MSG SIZE  rcvd: 79

;; connection timed out; no servers could be reached

HTTP

Looking for CNAME of www.tanet2.net.tw
Checking if there is a AAAA for www.tanet2.net.tw ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.tanet2.net.tw aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 443
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.tanet2.net.tw.		IN	AAAA

;; AUTHORITY SECTION:
tanet2.net.tw.		10800	IN	SOA	nstt.twaren.net. root.twaren.net. 2008081201 10800 3600 3600000 86400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 08:37:30 2012
;; MSG SIZE  rcvd: 91

Checking other options ... failed too.

SMTP

MX 10 mail2.tanet2.net.tw
Looking for AAAA on mail2.tanet2.net.tw
MX 10 mail1.tanet2.net.tw
Looking for AAAA on mail1.tanet2.net.tw

DNS

Looking for AAAA of NS nshc.twaren.net
Querying 2001:e10:3c00:1:0:0:0:3 for SOA of tanet2.net.tw over IPv6 ... FAILED
Looking for AAAA of NS nstt.twaren.net
Querying 2001:e10:5c00:1:0:0:0:4 for SOA of tanet2.net.tw over IPv6 ... FAILED

NTP

Looking for an A record for ntp.tanet2.net.tw
Looking for an A record for clock.tanet2.net.tw
Looking for an A record for time.tanet2.net.tw
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for time.tanet2.net.tw
Cannot find a AAAA record for time.ipv6.tanet2.net.tw

XMPP

Looking for a SRV record for _xmpp-client._tcp.tanet2.net.tw
Looking for a SRV record for _xmpp-server._tcp.tanet2.net.tw

Last Updated: Mon May 21 23:12:33 2012 UTC