Check that www.brown.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 brown.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 869
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

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

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	480176	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	480176	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	438440	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	180834	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	177388	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	177388	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	435760	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	481047	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	176783	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	481711	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	438749	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	438749	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	480283	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	480283	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:37:08 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 964
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	c.edu-servers.net.
edu.			172800	IN	NS	g.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	a.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
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: 133 msec
;; SERVER: 2001:503:ba3e::2:30#53(A.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 00:37:08 2012
;; MSG SIZE  rcvd: 262

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1611
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 4

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

;; AUTHORITY SECTION:
brown.edu.		172800	IN	NS	ns1.ucsb.edu.
brown.edu.		172800	IN	NS	bru-ns1.brown.edu.
brown.edu.		172800	IN	NS	bru-ns2.brown.edu.

;; ADDITIONAL SECTION:
ns1.ucsb.edu.		172800	IN	A	128.111.1.1
ns1.ucsb.edu.		172800	IN	AAAA	2607:f378::1
bru-ns1.brown.edu.	172800	IN	A	128.148.248.11
bru-ns2.brown.edu.	172800	IN	A	128.148.248.12

;; Query time: 246 msec
;; SERVER: 192.5.6.30#53(a.edu-servers.net)
;; WHEN: Fri May 18 00:37:09 2012
;; MSG SIZE  rcvd: 170

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 546
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

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

;; ANSWER SECTION:
brown.edu.		3600	IN	SOA	bru-ns2.brown.edu. hostmaster.brown.edu. 2014584957 3600 3600 2592000 3600

;; Query time: 255 msec
;; SERVER: 128.148.248.12#53(bru-ns2.brown.edu)
;; WHEN: Fri May 18 00:37:09 2012
;; MSG SIZE  rcvd: 82

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.brown.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 2003
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

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

;; Query time: 5663 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 00:38:10 2012
;; MSG SIZE  rcvd: 31

Checking other options ... failed too.

SMTP

MX 1 brown.edu.s10a1.psmtp.com
Looking for AAAA on brown.edu.s10a1.psmtp.com
MX 1 brown.edu.s10a2.psmtp.com
Looking for AAAA on brown.edu.s10a2.psmtp.com
MX 1 brown.edu.s10b1.psmtp.com
Looking for AAAA on brown.edu.s10b1.psmtp.com
MX 1 brown.edu.s10b2.psmtp.com
Looking for AAAA on brown.edu.s10b2.psmtp.com
MX 1 aspmx.l.google.com
Looking for AAAA on aspmx.l.google.com
MX 1 alt1.aspmx.l.google.com
Looking for AAAA on alt1.aspmx.l.google.com
MX 1 alt2.aspmx.l.google.com
Looking for AAAA on alt2.aspmx.l.google.com
MX 1 aspmx2.googlemail.com
Looking for AAAA on aspmx2.googlemail.com
MX 1 aspmx3.googlemail.com
Looking for AAAA on aspmx3.googlemail.com

DNS

Looking for AAAA of NS bru-ns2.brown.edu
No AAAA record for bru-ns2.brown.edu
Looking for AAAA of NS bru-ns1.brown.edu
No AAAA record for bru-ns1.brown.edu
Looking for AAAA of NS ns1.ucsb.edu
Querying 2607:f378:0:0:0:0:0:1 for SOA of brown.edu over IPv6 ... successful!

NTP

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

XMPP

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

Last Updated: Thu May 17 15:08:14 2012 UTC