Check that www.umn.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 umn.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 66
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			170016	IN	NS	i.root-servers.net.
.			170016	IN	NS	j.root-servers.net.
.			170016	IN	NS	f.root-servers.net.
.			170016	IN	NS	l.root-servers.net.
.			170016	IN	NS	e.root-servers.net.
.			170016	IN	NS	m.root-servers.net.
.			170016	IN	NS	c.root-servers.net.
.			170016	IN	NS	h.root-servers.net.
.			170016	IN	NS	g.root-servers.net.
.			170016	IN	NS	a.root-servers.net.
.			170016	IN	NS	b.root-servers.net.
.			170016	IN	NS	k.root-servers.net.
.			170016	IN	NS	d.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	39339	IN	A	198.41.0.4
a.root-servers.net.	39339	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	516004	IN	A	192.228.79.201
c.root-servers.net.	385387	IN	A	192.33.4.12
d.root-servers.net.	343736	IN	A	128.8.10.90
d.root-servers.net.	343736	IN	AAAA	2001:500:2d::d
e.root-servers.net.	516004	IN	A	192.203.230.10
f.root-servers.net.	40210	IN	A	192.5.5.241
f.root-servers.net.	345086	IN	AAAA	2001:500:2f::f
g.root-servers.net.	40874	IN	A	192.112.36.4
h.root-servers.net.	602725	IN	A	128.63.2.53
h.root-servers.net.	602725	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	39446	IN	A	192.36.148.17
i.root-servers.net.	39446	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 03:04:25 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1039
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
edu.			172800	IN	NS	c.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	d.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
l.edu-servers.net.	172800	IN	A	192.41.162.30
g.edu-servers.net.	172800	IN	AAAA	2001:503:cc2c::2:36

;; Query time: 249 msec
;; SERVER: 2001:500:2d::d#53(d.root-servers.net)
;; WHEN: Wed May 23 03:04:25 2012
;; MSG SIZE  rcvd: 260

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2044
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 5

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

;; AUTHORITY SECTION:
umn.edu.		172800	IN	NS	ns-auth-1.umn.edu.
umn.edu.		172800	IN	NS	ns-auth-2.umn.edu.
umn.edu.		172800	IN	NS	ns-auth-remote-1.umn.edu.

;; ADDITIONAL SECTION:
ns-auth-1.umn.edu.	172800	IN	A	128.101.101.1
ns-auth-1.umn.edu.	172800	IN	AAAA	2001:468:1910:4801::2
ns-auth-2.umn.edu.	172800	IN	A	128.101.101.9
ns-auth-2.umn.edu.	172800	IN	AAAA	2001:468:1910:4802::2
ns-auth-remote-1.umn.edu. 172800 IN	A	140.142.16.240

;; Query time: 189 msec
;; SERVER: 192.35.51.30#53(f.edu-servers.net)
;; WHEN: Wed May 23 03:04:25 2012
;; MSG SIZE  rcvd: 208

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1583
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

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

;; ANSWER SECTION:
umn.edu.		18000	IN	SOA	ns-auth-1.umn.edu. hostmaster.nts.umn.edu. 21153 10800 3600 2592000 900

;; Query time: 230 msec
;; SERVER: 2001:468:1910:4802::2#53(ns-auth-2.umn.edu)
;; WHEN: Wed May 23 03:04:26 2012
;; MSG SIZE  rcvd: 86

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.umn.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1709
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

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

;; AUTHORITY SECTION:
umn.edu.		900	IN	SOA	ns-auth-1.umn.edu. hostmaster.nts.umn.edu. 21153 10800 3600 2592000 900

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 03:04:27 2012
;; MSG SIZE  rcvd: 90

Checking other options ... failed too.

SMTP

MX 5 mhub-mp.tc.umn.edu
Looking for AAAA on mhub-mp.tc.umn.edu
MX 5 mhub-wp.tc.umn.edu
Looking for AAAA on mhub-wp.tc.umn.edu
MX 5 mhub-w.tc.umn.edu
Looking for AAAA on mhub-w.tc.umn.edu
MX 5 mhub-a.tc.umn.edu
Looking for AAAA on mhub-a.tc.umn.edu
MX 5 mhub-m.tc.umn.edu
Looking for AAAA on mhub-m.tc.umn.edu

DNS

Looking for AAAA of NS ns-auth-remote-1.umn.edu
No AAAA record for ns-auth-remote-1.umn.edu
Looking for AAAA of NS ns-auth-2.umn.edu
Querying 2001:468:1910:4802:0:0:0:2 for SOA of umn.edu over IPv6 ... successful!
Looking for AAAA of NS ns-auth-1.umn.edu
Querying 2001:468:1910:4801:0:0:0:2 for SOA of umn.edu over IPv6 ... successful!

NTP

Looking for an A record for ntp.umn.edu
Found an A or AAAA record. Now looking for a AAAA.
ntpdate -sq ntp.umn.edu (2001:468:1910:2007:0:0:0:53)
server 2001:468:1910:2007::53, stratum 2, offset -0.003013, delay 0.25357

XMPP

Looking for a SRV record for _xmpp-client._tcp.umn.edu
Found XMPP client talk.l.google.com (5, 5222)
Trying to connect to 74.125.31.125 on 5222 ... Connection succeeded
Trying to connect to 2404:6800:800b:0:0:0:0:7d on 5222 ... Connection succeeded

Looking for a SRV record for _xmpp-server._tcp.umn.edu
Found XMPP server xmpp-server.l.google.com (5, 5269)
Trying to connect to 74.125.31.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server4.l.google.com (20, 5269)
Trying to connect to 173.194.73.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server1.l.google.com (20, 5269)
Trying to connect to 74.125.142.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server2.l.google.com (20, 5269)
Trying to connect to 74.125.134.125 on 5269 ... Connection succeeded
Found XMPP server xmpp-server3.l.google.com (20, 5269)
Trying to connect to 173.194.68.125 on 5269 ... Connection succeeded

Last Updated: Tue May 22 17:34:35 2012 UTC