Check that www.cornell.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 cornell.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 421
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

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

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	479582	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	479582	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	437846	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	180240	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	176794	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	176794	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	435166	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	480453	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	176189	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	481117	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	438155	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	438155	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	479689	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	479689	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:47:02 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 402
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

;; QUESTION SECTION:
;cornell.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	g.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	f.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
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: 125 msec
;; SERVER: 2001:dc3::35#53(M.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 00:47:02 2012
;; MSG SIZE  rcvd: 264

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1464
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

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

;; AUTHORITY SECTION:
cornell.edu.		172800	IN	NS	bigred.cit.cornell.edu.
cornell.edu.		172800	IN	NS	dns.cit.cornell.edu.
cornell.edu.		172800	IN	NS	drdns.cit.cornell.edu.

;; ADDITIONAL SECTION:
bigred.cit.cornell.edu.	172800	IN	A	128.253.180.35
dns.cit.cornell.edu.	172800	IN	A	192.35.82.53
drdns.cit.cornell.edu.	172800	IN	A	192.195.74.252

;; Query time: 207 msec
;; SERVER: 192.35.51.30#53(f.edu-servers.net)
;; WHEN: Fri May 18 00:47:03 2012
;; MSG SIZE  rcvd: 140

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 225
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

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

;; ANSWER SECTION:
cornell.edu.		86400	IN	SOA	dns.cit.cornell.edu. nsmaster.cornell.edu. 2205171102 1860 600 2592000 3600

;; AUTHORITY SECTION:
cornell.edu.		432000	IN	NS	dns.cit.cornell.edu.
cornell.edu.		432000	IN	NS	cudns.cit.cornell.edu.
cornell.edu.		432000	IN	NS	bigred.cit.cornell.edu.
cornell.edu.		432000	IN	NS	drdns.cit.cornell.edu.

;; ADDITIONAL SECTION:
dns.cit.cornell.edu.	86400	IN	A	192.35.82.53
cudns.cit.cornell.edu.	86400	IN	A	132.236.56.252
drdns.cit.cornell.edu.	86400	IN	A	192.195.74.252
bigred.cit.cornell.edu.	86400	IN	A	128.253.180.35

;; Query time: 258 msec
;; SERVER: 192.35.82.53#53(dns.cit.cornell.edu)
;; WHEN: Fri May 18 00:47:03 2012
;; MSG SIZE  rcvd: 221

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.cornell.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 939
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.cornell.edu.	183	IN	CNAME	wwwcornelledu-ssl.cit.cornell.edu.

;; AUTHORITY SECTION:
cit.cornell.edu.	3600	IN	SOA	dns.cit.cornell.edu. nsmaster.cornell.edu. 2205171102 1860 600 2592000 3600

;; Query time: 6 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:47:04 2012
;; MSG SIZE  rcvd: 118

Checking other options ... succeeded as www.ipv6.cornell.edu.
Sending...

HEAD / HTTP/1.1
Host: www.ipv6.cornell.edu
User-Agent: ipv6-survey.pl/1.97 http://www.mrp.net/IPv6_Survey.html

Reading ...

HTTP/1.1 200 OK
Date: Thu, 17 May 2012 15:17:05 GMT
Server: Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.7d
Last-Modified: Tue, 15 Jun 2010 19:43:24 GMT
ETag: "200f-26e-48916d187459c"
Accept-Ranges: bytes
Content-Length: 622
Content-Type: text/html

Accessed / [2620:0:2bd0:4a:0:0:0:5] Response: HTTP/1.1 200 OK

SMTP

MX 10 router1.mail.cornell.edu
Looking for AAAA on router1.mail.cornell.edu
MX 10 router2.mail.cornell.edu
Looking for AAAA on router2.mail.cornell.edu
MX 10 router3.mail.cornell.edu
Looking for AAAA on router3.mail.cornell.edu
MX 10 router4.mail.cornell.edu
Looking for AAAA on router4.mail.cornell.edu
MX 10 router9.mail.cornell.edu
Looking for AAAA on router9.mail.cornell.edu
MX 10 router10.mail.cornell.edu
Looking for AAAA on router10.mail.cornell.edu

DNS

Looking for AAAA of NS bigred.cit.cornell.edu
No AAAA record for bigred.cit.cornell.edu
Looking for AAAA of NS drdns.cit.cornell.edu
No AAAA record for drdns.cit.cornell.edu
Looking for AAAA of NS cudns.cit.cornell.edu
No AAAA record for cudns.cit.cornell.edu
Looking for AAAA of NS dns.cit.cornell.edu
No AAAA record for dns.cit.cornell.edu

NTP

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

XMPP

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

Last Updated: Thu May 17 15:18:28 2012 UTC