Check that www.num.edu.mn 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 num.edu.mn soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 936
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			309739	IN	NS	g.root-servers.net.
.			309739	IN	NS	c.root-servers.net.
.			309739	IN	NS	e.root-servers.net.
.			309739	IN	NS	l.root-servers.net.
.			309739	IN	NS	d.root-servers.net.
.			309739	IN	NS	b.root-servers.net.
.			309739	IN	NS	i.root-servers.net.
.			309739	IN	NS	a.root-servers.net.
.			309739	IN	NS	h.root-servers.net.
.			309739	IN	NS	j.root-servers.net.
.			309739	IN	NS	f.root-servers.net.
.			309739	IN	NS	m.root-servers.net.
.			309739	IN	NS	k.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	179062	IN	A	198.41.0.4
a.root-servers.net.	179062	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	137326	IN	A	192.228.79.201
c.root-servers.net.	525110	IN	A	192.33.4.12
d.root-servers.net.	483459	IN	A	128.8.10.90
d.root-servers.net.	483459	IN	AAAA	2001:500:2d::d
e.root-servers.net.	134646	IN	A	192.203.230.10
f.root-servers.net.	179933	IN	A	192.5.5.241
f.root-servers.net.	484809	IN	AAAA	2001:500:2f::f
g.root-servers.net.	180597	IN	A	192.112.36.4
h.root-servers.net.	137635	IN	A	128.63.2.53
h.root-servers.net.	137635	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	179169	IN	A	192.36.148.17
i.root-servers.net.	179169	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 12:15:42 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1644
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 10, ADDITIONAL: 13

;; QUESTION SECTION:
;num.edu.mn.			IN	SOA

;; AUTHORITY SECTION:
mn.			172800	IN	NS	b0.cctld.afilias-nst.org.
mn.			172800	IN	NS	d0.cctld.afilias-nst.org.
mn.			172800	IN	NS	ns1.magic.mn.
mn.			172800	IN	NS	ns4.magic.mn.
mn.			172800	IN	NS	ns3.magic.mn.
mn.			172800	IN	NS	ns2.magic.mn.
mn.			172800	IN	NS	c0.cctld.afilias-nst.info.
mn.			172800	IN	NS	a0.cctld.afilias-nst.info.
mn.			172800	IN	NS	a2.cctld.afilias-nst.info.
mn.			172800	IN	NS	b2.cctld.afilias-nst.org.

;; ADDITIONAL SECTION:
a0.cctld.afilias-nst.info. 172800 IN	A	199.254.59.1
a2.cctld.afilias-nst.info. 172800 IN	A	199.249.116.1
b0.cctld.afilias-nst.org. 172800 IN	A	199.254.60.1
b2.cctld.afilias-nst.org. 172800 IN	A	199.249.124.1
c0.cctld.afilias-nst.info. 172800 IN	A	199.254.61.1
d0.cctld.afilias-nst.org. 172800 IN	A	199.254.62.1
ns1.magic.mn.		172800	IN	A	202.131.0.10
ns2.magic.mn.		172800	IN	A	202.72.241.5
ns3.magic.mn.		172800	IN	A	202.131.224.80
ns4.magic.mn.		172800	IN	A	218.100.84.26
a0.cctld.afilias-nst.info. 172800 IN	AAAA	2001:500:25::1
a2.cctld.afilias-nst.info. 172800 IN	AAAA	2001:500:44::1
b0.cctld.afilias-nst.org. 172800 IN	AAAA	2001:500:26::1

;; Query time: 252 msec
;; SERVER: 2001:500:2d::d#53(d.root-servers.net)
;; WHEN: Mon May 21 12:15:42 2012
;; MSG SIZE  rcvd: 495

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 782
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;num.edu.mn.			IN	SOA

;; AUTHORITY SECTION:
edu.mn.			4800	IN	NS	ns2.erdemnet.mn.
edu.mn.			4800	IN	NS	ns.erdemnet.mn.

;; ADDITIONAL SECTION:
ns.erdemnet.mn.		4800	IN	A	202.5.192.8
ns2.erdemnet.mn.	4800	IN	A	202.5.192.9

;; Query time: 352 msec
;; SERVER: 202.131.0.10#53(ns1.magic.mn)
;; WHEN: Mon May 21 12:15:43 2012
;; MSG SIZE  rcvd: 104

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1020
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;num.edu.mn.			IN	SOA

;; AUTHORITY SECTION:
num.edu.mn.		3600	IN	NS	ad1.num.edu.mn.
num.edu.mn.		3600	IN	NS	ns2.num.edu.mn.

;; ADDITIONAL SECTION:
ns2.num.edu.mn.		3600	IN	A	202.131.227.132
ad1.num.edu.mn.		3600	IN	A	202.131.227.130

;; Query time: 732 msec
;; SERVER: 202.5.192.9#53(ns2.erdemnet.mn)
;; WHEN: Mon May 21 12:15:45 2012
;; MSG SIZE  rcvd: 96

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 286
;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; QUESTION SECTION:
;num.edu.mn.			IN	SOA

;; ANSWER SECTION:
num.edu.mn.		3600	IN	SOA	ns1.num.edu.mn. sdblg.num.edu.mn. 10432 900 600 86400 3600

;; ADDITIONAL SECTION:
ns1.num.edu.mn.		3600	IN	A	202.131.227.130

;; Query time: 1122 msec
;; SERVER: 202.131.227.130#53(ad1.num.edu.mn)
;; WHEN: Mon May 21 12:15:48 2012
;; MSG SIZE  rcvd: 90

HTTP

Looking for CNAME of www.num.edu.mn
Checking if there is a AAAA for www.num.edu.mn ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.num.edu.mn aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 500
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.num.edu.mn.			IN	AAAA

;; ANSWER SECTION:
www.num.edu.mn.		3598	IN	CNAME	webserver1.num.edu.mn.

;; AUTHORITY SECTION:
num.edu.mn.		3599	IN	SOA	ns1.num.edu.mn. sdblg.num.edu.mn. 10432 900 600 86400 3600

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 12:15:50 2012
;; MSG SIZE  rcvd: 103

Checking other options ... failed too.

SMTP

MX 8 mail.num.edu.mn
Looking for AAAA on mail.num.edu.mn
MX 8 mbx.num.edu.mn
Looking for AAAA on mbx.num.edu.mn
MX 8 mail1.num.edu.mn
Looking for AAAA on mail1.num.edu.mn

DNS

Looking for AAAA of NS ns1.num.edu.mn
No AAAA record for ns1.num.edu.mn
Looking for AAAA of NS ad2.num.edu.mn
No AAAA record for ad2.num.edu.mn

NTP

Looking for an A record for ntp.num.edu.mn
Looking for an A record for clock.num.edu.mn
Looking for an A record for time.num.edu.mn
Looking for an A record for chime.num.edu.mn

XMPP

Looking for a SRV record for _xmpp-client._tcp.num.edu.mn
Looking for a SRV record for _xmpp-server._tcp.num.edu.mn

Last Updated: Mon May 21 02:45:56 2012 UTC