Check that www.kreonet.net 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 kreonet.net soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 345
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			324607	IN	NS	c.root-servers.net.
.			324607	IN	NS	d.root-servers.net.
.			324607	IN	NS	k.root-servers.net.
.			324607	IN	NS	l.root-servers.net.
.			324607	IN	NS	m.root-servers.net.
.			324607	IN	NS	e.root-servers.net.
.			324607	IN	NS	i.root-servers.net.
.			324607	IN	NS	h.root-servers.net.
.			324607	IN	NS	g.root-servers.net.
.			324607	IN	NS	a.root-servers.net.
.			324607	IN	NS	j.root-servers.net.
.			324607	IN	NS	b.root-servers.net.
.			324607	IN	NS	f.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	193930	IN	A	198.41.0.4
a.root-servers.net.	193930	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	152194	IN	A	192.228.79.201
c.root-servers.net.	539978	IN	A	192.33.4.12
d.root-servers.net.	498327	IN	A	128.8.10.90
d.root-servers.net.	498327	IN	AAAA	2001:500:2d::d
e.root-servers.net.	149514	IN	A	192.203.230.10
f.root-servers.net.	194801	IN	A	192.5.5.241
f.root-servers.net.	499677	IN	AAAA	2001:500:2f::f
g.root-servers.net.	195465	IN	A	192.112.36.4
h.root-servers.net.	152503	IN	A	128.63.2.53
h.root-servers.net.	152503	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	194037	IN	A	192.36.148.17
i.root-servers.net.	194037	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 08:07:54 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1991
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;kreonet.net.			IN	SOA

;; AUTHORITY SECTION:
net.			172800	IN	NS	i.gtld-servers.net.
net.			172800	IN	NS	j.gtld-servers.net.
net.			172800	IN	NS	f.gtld-servers.net.
net.			172800	IN	NS	m.gtld-servers.net.
net.			172800	IN	NS	c.gtld-servers.net.
net.			172800	IN	NS	l.gtld-servers.net.
net.			172800	IN	NS	h.gtld-servers.net.
net.			172800	IN	NS	e.gtld-servers.net.
net.			172800	IN	NS	d.gtld-servers.net.
net.			172800	IN	NS	a.gtld-servers.net.
net.			172800	IN	NS	g.gtld-servers.net.
net.			172800	IN	NS	k.gtld-servers.net.
net.			172800	IN	NS	b.gtld-servers.net.

;; ADDITIONAL SECTION:
a.gtld-servers.net.	172800	IN	A	192.5.6.30
a.gtld-servers.net.	172800	IN	AAAA	2001:503:a83e::2:30
b.gtld-servers.net.	172800	IN	A	192.33.14.30
b.gtld-servers.net.	172800	IN	AAAA	2001:503:231d::2:30
c.gtld-servers.net.	172800	IN	A	192.26.92.30
d.gtld-servers.net.	172800	IN	A	192.31.80.30
e.gtld-servers.net.	172800	IN	A	192.12.94.30
f.gtld-servers.net.	172800	IN	A	192.35.51.30
g.gtld-servers.net.	172800	IN	A	192.42.93.30
h.gtld-servers.net.	172800	IN	A	192.54.112.30
i.gtld-servers.net.	172800	IN	A	192.43.172.30
j.gtld-servers.net.	172800	IN	A	192.48.79.30
k.gtld-servers.net.	172800	IN	A	192.52.178.30
l.gtld-servers.net.	172800	IN	A	192.41.162.30

;; Query time: 134 msec
;; SERVER: 2001:503:ba3e::2:30#53(a.root-servers.net)
;; WHEN: Mon May 21 08:07:54 2012
;; MSG SIZE  rcvd: 498

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 953
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 0

;; QUESTION SECTION:
;kreonet.net.			IN	SOA

;; AUTHORITY SECTION:
kreonet.net.		172800	IN	NS	ns.kreonet.re.kr.
kreonet.net.		172800	IN	NS	ns.kisti.re.kr.
kreonet.net.		172800	IN	NS	ns.ksc.re.kr.

;; Query time: 324 msec
;; SERVER: 192.12.94.30#53(e.gtld-servers.net)
;; WHEN: Mon May 21 08:07:55 2012
;; MSG SIZE  rcvd: 103

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 179
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;kreonet.net.			IN	SOA

;; ANSWER SECTION:
kreonet.net.		300	IN	SOA	ns.kreonet.re.kr. hostmaster.kreonet.net. 20090827 86400 7200 2592000 3600

;; AUTHORITY SECTION:
kreonet.net.		300	IN	NS	ns.kreonet.re.kr.
kreonet.net.		300	IN	NS	ns.kisti.re.kr.
kreonet.net.		300	IN	NS	ns.ksc.re.kr.

;; ADDITIONAL SECTION:
ns.ksc.re.kr.		86400	IN	A	150.183.135.135
ns.kisti.re.kr.		86400	IN	A	150.183.95.96
ns.kreonet.re.kr.	86400	IN	A	134.75.30.1

;; Query time: 150 msec
;; SERVER: 134.75.30.1#53(ns.kreonet.re.kr)
;; WHEN: Mon May 21 08:07:55 2012
;; MSG SIZE  rcvd: 198

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.kreonet.net aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1267
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.kreonet.net.		IN	AAAA

;; AUTHORITY SECTION:
kreonet.net.		300	IN	SOA	ns.kreonet.re.kr. hostmaster.kreonet.net. 20090827 86400 7200 2592000 3600

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 08:07:56 2012
;; MSG SIZE  rcvd: 96

Checking other options ... failed too.

SMTP

MX 20 antispam1.kisti.re.kr
Looking for AAAA on antispam1.kisti.re.kr

DNS

Looking for AAAA of NS ns.kreonet.re.kr
No AAAA record for ns.kreonet.re.kr
Looking for AAAA of NS ns.kisti.re.kr
No AAAA record for ns.kisti.re.kr
Looking for AAAA of NS ns.ksc.re.kr
No AAAA record for ns.ksc.re.kr

NTP

Looking for an A record for ntp.kreonet.net
Looking for an A record for clock.kreonet.net
Looking for an A record for time.kreonet.net
Looking for an A record for chime.kreonet.net

XMPP

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

Last Updated: Sun May 20 22:37:59 2012 UTC