Check that www.rochester.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 rochester.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 953
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			167808	IN	NS	h.root-servers.net.
.			167808	IN	NS	i.root-servers.net.
.			167808	IN	NS	d.root-servers.net.
.			167808	IN	NS	b.root-servers.net.
.			167808	IN	NS	m.root-servers.net.
.			167808	IN	NS	e.root-servers.net.
.			167808	IN	NS	g.root-servers.net.
.			167808	IN	NS	f.root-servers.net.
.			167808	IN	NS	k.root-servers.net.
.			167808	IN	NS	a.root-servers.net.
.			167808	IN	NS	j.root-servers.net.
.			167808	IN	NS	c.root-servers.net.
.			167808	IN	NS	l.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	37131	IN	A	198.41.0.4
a.root-servers.net.	37131	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	513796	IN	A	192.228.79.201
c.root-servers.net.	383179	IN	A	192.33.4.12
d.root-servers.net.	341528	IN	A	128.8.10.90
d.root-servers.net.	341528	IN	AAAA	2001:500:2d::d
e.root-servers.net.	513796	IN	A	192.203.230.10
f.root-servers.net.	38002	IN	A	192.5.5.241
f.root-servers.net.	342878	IN	AAAA	2001:500:2f::f
g.root-servers.net.	38666	IN	A	192.112.36.4
h.root-servers.net.	600517	IN	A	128.63.2.53
h.root-servers.net.	600517	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	37238	IN	A	192.36.148.17
i.root-servers.net.	37238	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 03:41:13 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1937
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
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.
edu.			172800	IN	NS	d.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 03:41:13 2012
;; MSG SIZE  rcvd: 266

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1366
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 5, ADDITIONAL: 5

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

;; AUTHORITY SECTION:
rochester.edu.		172800	IN	NS	dns.cs.wisc.edu.
rochester.edu.		172800	IN	NS	ns1.utd.rochester.edu.
rochester.edu.		172800	IN	NS	ns2.utd.rochester.edu.
rochester.edu.		172800	IN	NS	ns.cc.rochester.edu.
rochester.edu.		172800	IN	NS	ns3.net.rochester.edu.

;; ADDITIONAL SECTION:
dns.cs.wisc.edu.	172800	IN	A	128.105.2.10
ns1.utd.rochester.edu.	172800	IN	A	128.151.2.1
ns2.utd.rochester.edu.	172800	IN	A	128.151.7.6
ns.cc.rochester.edu.	172800	IN	A	128.151.224.6
ns3.net.rochester.edu.	172800	IN	A	128.151.16.189

;; Query time: 239 msec
;; SERVER: 192.31.80.30#53(d.edu-servers.net)
;; WHEN: Wed May 23 03:41:14 2012
;; MSG SIZE  rcvd: 219

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1669
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 4

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

;; ANSWER SECTION:
rochester.edu.		3600	IN	SOA	ns1.utd.rochester.edu. postmaster.utd.rochester.edu. 2012042501 3600 1800 864000 86400

;; AUTHORITY SECTION:
rochester.edu.		3600	IN	NS	ns.cc.rochester.edu.
rochester.edu.		3600	IN	NS	dns.cs.wisc.edu.
rochester.edu.		3600	IN	NS	ns1.utd.rochester.edu.
rochester.edu.		3600	IN	NS	ns3.net.rochester.edu.
rochester.edu.		3600	IN	NS	ns2.utd.rochester.edu.

;; ADDITIONAL SECTION:
ns.cc.rochester.edu.	300	IN	A	128.151.224.6
ns1.utd.rochester.edu.	86400	IN	A	128.151.2.1
ns2.utd.rochester.edu.	86400	IN	A	128.151.7.6
ns3.net.rochester.edu.	300	IN	A	128.151.16.189

;; Query time: 240 msec
;; SERVER: 128.151.7.6#53(ns2.utd.rochester.edu)
;; WHEN: Wed May 23 03:41:14 2012
;; MSG SIZE  rcvd: 250

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.rochester.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1601
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

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

;; AUTHORITY SECTION:
rochester.edu.		3600	IN	SOA	ns1.utd.rochester.edu. postmaster.utd.rochester.edu. 2012042501 3600 1800 864000 86400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 03:41:16 2012
;; MSG SIZE  rcvd: 90

Checking other options ... failed too.

SMTP

MX 10 mx1.its.rochester.edu
Looking for AAAA on mx1.its.rochester.edu
MX 10 mx2.its.rochester.edu
Looking for AAAA on mx2.its.rochester.edu
MX 10 mx3.its.rochester.edu
Looking for AAAA on mx3.its.rochester.edu
MX 10 mx4.its.rochester.edu
Looking for AAAA on mx4.its.rochester.edu
MX 10 mx5.its.rochester.edu
Looking for AAAA on mx5.its.rochester.edu
MX 10 mx6.its.rochester.edu
Looking for AAAA on mx6.its.rochester.edu
MX 10 mx7.its.rochester.edu
Looking for AAAA on mx7.its.rochester.edu
MX 10 mx8.its.rochester.edu
Looking for AAAA on mx8.its.rochester.edu

DNS

Looking for AAAA of NS ns2.utd.rochester.edu
No AAAA record for ns2.utd.rochester.edu
Looking for AAAA of NS ns3.net.rochester.edu
No AAAA record for ns3.net.rochester.edu
Looking for AAAA of NS ns1.utd.rochester.edu
No AAAA record for ns1.utd.rochester.edu
Looking for AAAA of NS ns.cc.rochester.edu
No AAAA record for ns.cc.rochester.edu
Looking for AAAA of NS dns.cs.wisc.edu
No AAAA record for dns.cs.wisc.edu

NTP

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

XMPP

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

Last Updated: Tue May 22 18:11:24 2012 UTC