Check that www.niu.edu 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 niu.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1067
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			261264	IN	NS	h.root-servers.net.
.			261264	IN	NS	c.root-servers.net.
.			261264	IN	NS	m.root-servers.net.
.			261264	IN	NS	b.root-servers.net.
.			261264	IN	NS	d.root-servers.net.
.			261264	IN	NS	j.root-servers.net.
.			261264	IN	NS	g.root-servers.net.
.			261264	IN	NS	f.root-servers.net.
.			261264	IN	NS	a.root-servers.net.
.			261264	IN	NS	i.root-servers.net.
.			261264	IN	NS	l.root-servers.net.
.			261264	IN	NS	e.root-servers.net.
.			261264	IN	NS	k.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	130587	IN	A	198.41.0.4
a.root-servers.net.	130587	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	88851	IN	A	192.228.79.201
c.root-servers.net.	476635	IN	A	192.33.4.12
d.root-servers.net.	434984	IN	A	128.8.10.90
d.root-servers.net.	434984	IN	AAAA	2001:500:2d::d
e.root-servers.net.	86171	IN	A	192.203.230.10
f.root-servers.net.	131458	IN	A	192.5.5.241
f.root-servers.net.	436334	IN	AAAA	2001:500:2f::f
g.root-servers.net.	132122	IN	A	192.112.36.4
h.root-servers.net.	89160	IN	A	128.63.2.53
h.root-servers.net.	89160	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	130694	IN	A	192.36.148.17
i.root-servers.net.	130694	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 01:43:37 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 460
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

;; QUESTION SECTION:
;niu.edu.			IN	SOA

;; AUTHORITY SECTION:
edu.			172800	IN	NS	d.edu-servers.net.
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	g.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	c.edu-servers.net.

;; ADDITIONAL SECTION:
a.edu-servers.net.	172800	IN	A	192.5.6.30
c.edu-servers.net.	172800	IN	A	192.26.92.30
d.edu-servers.net.	172800	IN	A	192.31.80.30
f.edu-servers.net.	172800	IN	A	192.35.51.30
g.edu-servers.net.	172800	IN	A	192.42.93.30
g.edu-servers.net.	172800	IN	AAAA	2001:503:cc2c::2:36
l.edu-servers.net.	172800	IN	A	192.41.162.30

;; Query time: 35 msec
;; SERVER: 2001:7fe::53#53(i.root-servers.net)
;; WHEN: Tue May 22 01:43:37 2012
;; MSG SIZE  rcvd: 260

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 855
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;niu.edu.			IN	SOA

;; AUTHORITY SECTION:
niu.edu.		172800	IN	NS	netmgr.cso.niu.edu.
niu.edu.		172800	IN	NS	netmgrts.cso.niu.edu.

;; ADDITIONAL SECTION:
netmgr.cso.niu.edu.	172800	IN	A	131.156.1.11
netmgrts.cso.niu.edu.	172800	IN	A	131.156.126.2

;; Query time: 236 msec
;; SERVER: 192.31.80.30#53(d.edu-servers.net)
;; WHEN: Tue May 22 01:43:37 2012
;; MSG SIZE  rcvd: 105

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 759
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 3

;; QUESTION SECTION:
;niu.edu.			IN	SOA

;; ANSWER SECTION:
niu.edu.		86400	IN	SOA	netmgr.cso.niu.edu. networks.cs.niu.edu. 7931 43200 7200 604800 50400

;; AUTHORITY SECTION:
niu.edu.		86400	IN	NS	mp.cs.niu.edu.
niu.edu.		86400	IN	NS	netmgr.cso.niu.edu.
niu.edu.		86400	IN	NS	dns1.cso.uiuc.edu.
niu.edu.		86400	IN	NS	netmgrts.cso.niu.edu.

;; ADDITIONAL SECTION:
mp.cs.niu.edu.		86400	IN	A	131.156.145.41
netmgr.cso.niu.edu.	86400	IN	A	131.156.1.11
netmgrts.cso.niu.edu.	86400	IN	A	131.156.126.2

;; Query time: 257 msec
;; SERVER: 131.156.1.11#53(netmgr.cso.niu.edu)
;; WHEN: Tue May 22 01:43:37 2012
;; MSG SIZE  rcvd: 214

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.niu.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 662
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.niu.edu.			IN	AAAA

;; AUTHORITY SECTION:
niu.edu.		10799	IN	SOA	netmgr.cso.niu.edu. networks.cs.niu.edu. 7931 43200 7200 604800 50400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 01:43:39 2012
;; MSG SIZE  rcvd: 88

Checking other options ... failed too.

SMTP

MX 0 mailgw02.ess.niu.edu
Looking for AAAA on mailgw02.ess.niu.edu
MX 0 mailgw03.ess.niu.edu
Looking for AAAA on mailgw03.ess.niu.edu
MX 0 mailgw04.ess.niu.edu
Looking for AAAA on mailgw04.ess.niu.edu
MX 0 mailgw01.ess.niu.edu
Looking for AAAA on mailgw01.ess.niu.edu

DNS

Looking for AAAA of NS netmgr.cso.niu.edu
No AAAA record for netmgr.cso.niu.edu
Looking for AAAA of NS netmgrts.cso.niu.edu
No AAAA record for netmgrts.cso.niu.edu
Looking for AAAA of NS dns1.cso.uiuc.edu
No AAAA record for dns1.cso.uiuc.edu
Looking for AAAA of NS mp.cs.niu.edu
No AAAA record for mp.cs.niu.edu

NTP

Looking for an A record for ntp.niu.edu
Looking for an A record for clock.niu.edu
Looking for an A record for time.niu.edu
Looking for an A record for chime.niu.edu

XMPP

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

Last Updated: Mon May 21 16:13:44 2012 UTC