Check that www.kaist.ac.kr 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 kaist.ac.kr soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1375
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			309750	IN	NS	m.root-servers.net.
.			309750	IN	NS	g.root-servers.net.
.			309750	IN	NS	a.root-servers.net.
.			309750	IN	NS	d.root-servers.net.
.			309750	IN	NS	e.root-servers.net.
.			309750	IN	NS	h.root-servers.net.
.			309750	IN	NS	i.root-servers.net.
.			309750	IN	NS	l.root-servers.net.
.			309750	IN	NS	j.root-servers.net.
.			309750	IN	NS	b.root-servers.net.
.			309750	IN	NS	f.root-servers.net.
.			309750	IN	NS	c.root-servers.net.
.			309750	IN	NS	k.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	179073	IN	A	198.41.0.4
a.root-servers.net.	179073	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	137337	IN	A	192.228.79.201
c.root-servers.net.	525121	IN	A	192.33.4.12
d.root-servers.net.	483470	IN	A	128.8.10.90
d.root-servers.net.	483470	IN	AAAA	2001:500:2d::d
e.root-servers.net.	134657	IN	A	192.203.230.10
f.root-servers.net.	179944	IN	A	192.5.5.241
f.root-servers.net.	484820	IN	AAAA	2001:500:2f::f
g.root-servers.net.	180608	IN	A	192.112.36.4
h.root-servers.net.	137646	IN	A	128.63.2.53
h.root-servers.net.	137646	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	179180	IN	A	192.36.148.17
i.root-servers.net.	179180	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 12:15:31 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1418
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 8

;; QUESTION SECTION:
;kaist.ac.kr.			IN	SOA

;; AUTHORITY SECTION:
kr.			172800	IN	NS	b.dns.kr.
kr.			172800	IN	NS	c.dns.kr.
kr.			172800	IN	NS	d.dns.kr.
kr.			172800	IN	NS	e.dns.kr.
kr.			172800	IN	NS	f.dns.kr.
kr.			172800	IN	NS	g.dns.kr.

;; ADDITIONAL SECTION:
b.dns.kr.		172800	IN	A	61.74.75.1
c.dns.kr.		172800	IN	A	203.248.246.220
d.dns.kr.		172800	IN	A	203.83.159.1
e.dns.kr.		172800	IN	A	202.30.124.100
f.dns.kr.		172800	IN	A	218.38.181.90
g.dns.kr.		172800	IN	A	202.31.190.1
e.dns.kr.		172800	IN	AAAA	2001:dcc:5::100
g.dns.kr.		172800	IN	AAAA	2001:dc5:a::1

;; Query time: 250 msec
;; SERVER: 2001:500:1::803f:235#53(h.root-servers.net)
;; WHEN: Mon May 21 12:15:31 2012
;; MSG SIZE  rcvd: 283

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1329
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;kaist.ac.kr.			IN	SOA

;; AUTHORITY SECTION:
kaist.ac.kr.		86400	IN	NS	sns.kaist.ac.kr.
kaist.ac.kr.		86400	IN	NS	apan-ns.kaist.ac.kr.
kaist.ac.kr.		86400	IN	NS	ns1.kaist.ac.kr.
kaist.ac.kr.		86400	IN	NS	ns.kaist.ac.kr.

;; ADDITIONAL SECTION:
ns.kaist.ac.kr.		86400	IN	A	143.248.1.177
ns1.kaist.ac.kr.	86400	IN	A	143.248.2.177
sns.kaist.ac.kr.	86400	IN	A	137.68.225.10
apan-ns.kaist.ac.kr.	86400	IN	A	192.249.24.62

;; Query time: 453 msec
;; SERVER: 2001:dcc:5::100#53(e.dns.kr)
;; WHEN: Mon May 21 12:15:31 2012
;; MSG SIZE  rcvd: 168

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 633
;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;kaist.ac.kr.			IN	SOA

;; ANSWER SECTION:
kaist.ac.kr.		7200	IN	SOA	ns.kaist.ac.kr. root.ns.kaist.ac.kr. 2012052101 3600 900 604800 7200

;; AUTHORITY SECTION:
kaist.ac.kr.		7200	IN	NS	ns.kaist.ac.kr.
kaist.ac.kr.		7200	IN	NS	ns1.kaist.ac.kr.

;; ADDITIONAL SECTION:
ns.kaist.ac.kr.		7200	IN	A	143.248.1.177
ns1.kaist.ac.kr.	7200	IN	A	143.248.2.177

;; Query time: 315 msec
;; SERVER: 143.248.1.177#53(ns.kaist.ac.kr)
;; WHEN: Mon May 21 12:15:33 2012
;; MSG SIZE  rcvd: 137

HTTP

Looking for CNAME of www.kaist.ac.kr
Checking if there is a AAAA for www.kaist.ac.kr ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.kaist.ac.kr aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1300
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.kaist.ac.kr.		IN	AAAA

;; AUTHORITY SECTION:
kaist.ac.kr.		7200	IN	SOA	ns.kaist.ac.kr. root.ns.kaist.ac.kr. 2012052101 3600 900 604800 7200

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 12:15:34 2012
;; MSG SIZE  rcvd: 77

Checking other options ... failed too.

SMTP

MX 0 smtp.kaist.ac.kr
Looking for AAAA on smtp.kaist.ac.kr

DNS

Looking for AAAA of NS ns.kaist.ac.kr
No AAAA record for ns.kaist.ac.kr
Looking for AAAA of NS ns1.kaist.ac.kr
No AAAA record for ns1.kaist.ac.kr

NTP

Looking for an A record for ntp.kaist.ac.kr
Looking for an A record for clock.kaist.ac.kr
Looking for an A record for time.kaist.ac.kr
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for time.kaist.ac.kr
Cannot find a AAAA record for time.ipv6.kaist.ac.kr

XMPP

Looking for a SRV record for _xmpp-client._tcp.kaist.ac.kr
Looking for a SRV record for _xmpp-server._tcp.kaist.ac.kr

Last Updated: Mon May 21 02:45:37 2012 UTC