Check that www.colorado.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 colorado.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1141
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; AUTHORITY SECTION:
.			3600000	IN	NS	G.ROOT-SERVERS.NET.
.			3600000	IN	NS	D.ROOT-SERVERS.NET.
.			3600000	IN	NS	L.ROOT-SERVERS.NET.
.			3600000	IN	NS	H.ROOT-SERVERS.NET.
.			3600000	IN	NS	F.ROOT-SERVERS.NET.
.			3600000	IN	NS	A.ROOT-SERVERS.NET.
.			3600000	IN	NS	B.ROOT-SERVERS.NET.
.			3600000	IN	NS	K.ROOT-SERVERS.NET.
.			3600000	IN	NS	M.ROOT-SERVERS.NET.
.			3600000	IN	NS	J.ROOT-SERVERS.NET.
.			3600000	IN	NS	E.ROOT-SERVERS.NET.
.			3600000	IN	NS	I.ROOT-SERVERS.NET.
.			3600000	IN	NS	C.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	472397	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	472397	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	430661	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	173055	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	169609	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	169609	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	427981	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	473268	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	169004	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	473932	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	430970	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	430970	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	472504	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	472504	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 02:46:47 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1137
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
edu.			172800	IN	NS	d.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	c.edu-servers.net.
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	g.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: 185 msec
;; SERVER: 192.33.4.12#53(C.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 02:46:47 2012
;; MSG SIZE  rcvd: 265

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 478
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

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

;; AUTHORITY SECTION:
colorado.edu.		172800	IN	NS	boulder.colorado.edu.
colorado.edu.		172800	IN	NS	otis.colorado.edu.
colorado.edu.		172800	IN	NS	oldduke.colorado.edu.

;; ADDITIONAL SECTION:
boulder.colorado.edu.	172800	IN	A	128.138.240.1
otis.colorado.edu.	172800	IN	A	128.138.129.76
oldduke.colorado.edu.	172800	IN	A	128.138.130.30

;; Query time: 254 msec
;; SERVER: 192.26.92.30#53(c.edu-servers.net)
;; WHEN: Fri May 18 02:46:48 2012
;; MSG SIZE  rcvd: 141

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 368
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3

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

;; ANSWER SECTION:
colorado.edu.		3600	IN	SOA	boulder.colorado.edu. postmaster.colorado.edu. 2012051701 3600 1200 3600000 10800

;; AUTHORITY SECTION:
colorado.edu.		3600	IN	NS	boulder.colorado.edu.
colorado.edu.		3600	IN	NS	otis.colorado.edu.
colorado.edu.		3600	IN	NS	oldduke.colorado.edu.

;; ADDITIONAL SECTION:
otis.colorado.edu.	3600	IN	A	128.138.129.76
boulder.colorado.edu.	3600	IN	A	128.138.240.1
oldduke.colorado.edu.	3600	IN	A	128.138.130.30

;; Query time: 219 msec
;; SERVER: 128.138.240.1#53(boulder.colorado.edu)
;; WHEN: Fri May 18 02:46:48 2012
;; MSG SIZE  rcvd: 188

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.colorado.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 274
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

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

;; AUTHORITY SECTION:
colorado.edu.		3600	IN	SOA	boulder.colorado.edu. postmaster.colorado.edu. 2012051701 3600 1200 3600000 10800

;; Query time: 19 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 02:46:49 2012
;; MSG SIZE  rcvd: 89

Checking other options ... failed too.

SMTP

MX 10 mx.colorado.edu
Looking for AAAA on mx.colorado.edu

DNS

Looking for AAAA of NS oldduke.colorado.edu
No AAAA record for oldduke.colorado.edu
Looking for AAAA of NS otis.colorado.edu
No AAAA record for otis.colorado.edu
Looking for AAAA of NS boulder.colorado.edu
No AAAA record for boulder.colorado.edu

NTP

Looking for an A record for ntp.colorado.edu
Looking for an A record for clock.colorado.edu
Looking for an A record for time.colorado.edu
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for time.colorado.edu
Cannot find a AAAA record for time.ipv6.colorado.edu

XMPP

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

Last Updated: Thu May 17 17:18:53 2012 UTC