Check that www.carleton.ca 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 carleton.ca soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1499
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

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

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	443881	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	443881	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	402145	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	144539	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	141093	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	141093	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	399465	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	444752	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	140488	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	445416	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	402454	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	402454	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	443988	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	443988	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 10:42:03 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 834
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 10, ADDITIONAL: 14

;; QUESTION SECTION:
;carleton.ca.			IN	SOA

;; AUTHORITY SECTION:
ca.			172800	IN	NS	tld.isc-sns.net.
ca.			172800	IN	NS	f.ca-servers.ca.
ca.			172800	IN	NS	j.ca-servers.ca.
ca.			172800	IN	NS	z.ca-servers.ca.
ca.			172800	IN	NS	l.ca-servers.ca.
ca.			172800	IN	NS	k.ca-servers.ca.
ca.			172800	IN	NS	c.ca-servers.ca.
ca.			172800	IN	NS	a.ca-servers.ca.
ca.			172800	IN	NS	e.ca-servers.ca.
ca.			172800	IN	NS	sns-pb.isc.org.

;; ADDITIONAL SECTION:
a.ca-servers.ca.	172800	IN	A	199.253.251.2
c.ca-servers.ca.	172800	IN	A	192.228.28.9
e.ca-servers.ca.	172800	IN	A	192.228.30.9
f.ca-servers.ca.	172800	IN	A	199.4.28.220
j.ca-servers.ca.	172800	IN	A	198.182.167.1
k.ca-servers.ca.	172800	IN	A	156.154.100.4
l.ca-servers.ca.	172800	IN	A	156.154.101.4
z.ca-servers.ca.	172800	IN	A	192.228.25.66
tld.isc-sns.net.	172800	IN	A	63.243.194.3
sns-pb.isc.org.		172800	IN	A	192.5.4.1
a.ca-servers.ca.	172800	IN	AAAA	2001:500:80:5000::2
j.ca-servers.ca.	172800	IN	AAAA	2001:500:83::1
tld.isc-sns.net.	172800	IN	AAAA	2001:5a0:10::3
sns-pb.isc.org.		172800	IN	AAAA	2001:500:2e::1

;; Query time: 130 msec
;; SERVER: 192.112.36.4#53(G.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 10:42:03 2012
;; MSG SIZE  rcvd: 497

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 743
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 2

;; QUESTION SECTION:
;carleton.ca.			IN	SOA

;; AUTHORITY SECTION:
carleton.ca.		86400	IN	NS	ns1.carleton.ca.
carleton.ca.		86400	IN	NS	ns2.carleton.ca.
carleton.ca.		86400	IN	NS	pri2.dns.ca.telus.com.

;; ADDITIONAL SECTION:
ns1.carleton.ca.	86400	IN	A	134.117.253.195
ns2.carleton.ca.	86400	IN	A	134.117.253.196

;; Query time: 312 msec
;; SERVER: 192.228.30.9#53(e.ca-servers.ca)
;; WHEN: Fri May 18 10:42:03 2012
;; MSG SIZE  rcvd: 132

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1483
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;carleton.ca.			IN	SOA

;; ANSWER SECTION:
carleton.ca.		900	IN	SOA	dns1.ccs.carleton.ca. dns_admin.carleton.ca. 130112106 1800 300 2419200 3600

;; Query time: 265 msec
;; SERVER: 134.117.253.195#53(ns1.carleton.ca)
;; WHEN: Fri May 18 10:42:04 2012
;; MSG SIZE  rcvd: 84

HTTP

Looking for CNAME of www.carleton.ca
Checking if there is a AAAA for www.carleton.ca ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.carleton.ca aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 171
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.carleton.ca.		IN	AAAA

;; ANSWER SECTION:
www.carleton.ca.	899	IN	CNAME	carleton.ca.

;; AUTHORITY SECTION:
carleton.ca.		900	IN	SOA	dns1.ccs.carleton.ca. dns_admin.carleton.ca. 130112106 1800 300 2419200 3600

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 10:42:05 2012
;; MSG SIZE  rcvd: 102

Checking other options ... failed too.

SMTP

MX 10 smtp-gateway2.carleton.ca
Looking for AAAA on smtp-gateway2.carleton.ca
MX 10 smtp-gateway3.carleton.ca
Looking for AAAA on smtp-gateway3.carleton.ca

DNS

Looking for AAAA of NS dns1.ccs.carleton.ca
No AAAA record for dns1.ccs.carleton.ca
Looking for AAAA of NS ns2.carleton.ca
No AAAA record for ns2.carleton.ca
Looking for AAAA of NS ns1.carleton.ca
No AAAA record for ns1.carleton.ca
Looking for AAAA of NS pri2.dns.ca.telus.com
No AAAA record for pri2.dns.ca.telus.com
Looking for AAAA of NS dns2.ccs.carleton.ca
No AAAA record for dns2.ccs.carleton.ca
Looking for AAAA of NS dns3.carleton.ca
No AAAA record for dns3.carleton.ca

NTP

Looking for an A record for ntp.carleton.ca
Looking for an A record for clock.carleton.ca
Looking for an A record for time.carleton.ca
Looking for an A record for chime.carleton.ca

XMPP

Looking for a SRV record for _xmpp-client._tcp.carleton.ca
Looking for a SRV record for _xmpp-server._tcp.carleton.ca

Last Updated: Fri May 18 01:12:10 2012 UTC