Check that www.clemson.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 clemson.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 587
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

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

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	480068	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	480068	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	438332	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	180726	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	177280	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	177280	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	435652	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	480939	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	176675	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	481603	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	438641	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	438641	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	480175	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	480175	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:38:56 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2018
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

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

;; 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: Fri May 18 00:38:56 2012
;; MSG SIZE  rcvd: 264

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1237
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 5

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

;; AUTHORITY SECTION:
clemson.edu.		172800	IN	NS	extns1.clemson.edu.
clemson.edu.		172800	IN	NS	extns2.clemson.edu.
clemson.edu.		172800	IN	NS	extns3.clemson.edu.

;; ADDITIONAL SECTION:
extns1.clemson.edu.	172800	IN	A	130.127.255.252
extns1.clemson.edu.	172800	IN	AAAA	2620:103:a004::252
extns2.clemson.edu.	172800	IN	A	130.127.255.253
extns2.clemson.edu.	172800	IN	AAAA	2620:103:a004::253
extns3.clemson.edu.	172800	IN	A	192.42.3.5

;; Query time: 246 msec
;; SERVER: 192.5.6.30#53(a.edu-servers.net)
;; WHEN: Fri May 18 00:38:56 2012
;; MSG SIZE  rcvd: 196

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 543
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 5

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

;; ANSWER SECTION:
clemson.edu.		3600	IN	SOA	extns1.clemson.edu. hostmaster.clemson.edu. 2012051608 3600 900 1209600 5400

;; AUTHORITY SECTION:
clemson.edu.		3600	IN	NS	extns3.clemson.edu.
clemson.edu.		3600	IN	NS	extns1.clemson.edu.
clemson.edu.		3600	IN	NS	extns2.clemson.edu.

;; ADDITIONAL SECTION:
extns1.clemson.edu.	3600	IN	A	130.127.255.252
extns2.clemson.edu.	3600	IN	A	130.127.255.253
extns3.clemson.edu.	3600	IN	A	192.42.3.5
extns1.clemson.edu.	3600	IN	AAAA	2620:103:a004::252
extns2.clemson.edu.	3600	IN	AAAA	2620:103:a004::253

;; Query time: 265 msec
;; SERVER: 2620:103:a004::253#53(extns2.clemson.edu)
;; WHEN: Fri May 18 00:38:56 2012
;; MSG SIZE  rcvd: 243

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.clemson.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

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

;; AUTHORITY SECTION:
clemson.edu.		3600	IN	SOA	extns1.clemson.edu. hostmaster.clemson.edu. 2012051608 3600 900 1209600 5400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:38:57 2012
;; MSG SIZE  rcvd: 87

Checking other options ... failed too.

SMTP

MX 10 mx7.clemson.edu
Looking for AAAA on mx7.clemson.edu
MX 10 mx1.clemson.edu
Looking for AAAA on mx1.clemson.edu
MX 10 mx2.clemson.edu
Looking for AAAA on mx2.clemson.edu

DNS

Looking for AAAA of NS extns1.clemson.edu
Querying 2620:103:a004:0:0:0:0:252 for SOA of clemson.edu over IPv6 ... successful!
Looking for AAAA of NS extns2.clemson.edu
Querying 2620:103:a004:0:0:0:0:253 for SOA of clemson.edu over IPv6 ... successful!
Looking for AAAA of NS extns3.clemson.edu
No AAAA record for extns3.clemson.edu

NTP

Looking for an A record for ntp.clemson.edu
Looking for an A record for clock.clemson.edu
Looking for an A record for time.clemson.edu
Found an A or AAAA record. Now looking for a AAAA.
ntpdate -sq time.clemson.edu (2620:103:a004:0:0:0:0:248)
server 2620:103:a004::248, stratum 0, offset 0.000000, delay 0.00000
Found problem with stratum (0)

XMPP

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

Last Updated: Thu May 17 15:09:06 2012 UTC