Check that www.kcl.ac.uk 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 kcl.ac.uk soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1588
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			303842	IN	NS	e.root-servers.net.
.			303842	IN	NS	m.root-servers.net.
.			303842	IN	NS	l.root-servers.net.
.			303842	IN	NS	a.root-servers.net.
.			303842	IN	NS	h.root-servers.net.
.			303842	IN	NS	d.root-servers.net.
.			303842	IN	NS	j.root-servers.net.
.			303842	IN	NS	k.root-servers.net.
.			303842	IN	NS	f.root-servers.net.
.			303842	IN	NS	b.root-servers.net.
.			303842	IN	NS	c.root-servers.net.
.			303842	IN	NS	g.root-servers.net.
.			303842	IN	NS	i.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	173165	IN	A	198.41.0.4
a.root-servers.net.	173165	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	131429	IN	A	192.228.79.201
c.root-servers.net.	519213	IN	A	192.33.4.12
d.root-servers.net.	477562	IN	A	128.8.10.90
d.root-servers.net.	477562	IN	AAAA	2001:500:2d::d
e.root-servers.net.	128749	IN	A	192.203.230.10
f.root-servers.net.	174036	IN	A	192.5.5.241
f.root-servers.net.	478912	IN	AAAA	2001:500:2f::f
g.root-servers.net.	174700	IN	A	192.112.36.4
h.root-servers.net.	131738	IN	A	128.63.2.53
h.root-servers.net.	131738	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	173272	IN	A	192.36.148.17
i.root-servers.net.	173272	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 13:53:59 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1007
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 11, ADDITIONAL: 14

;; QUESTION SECTION:
;kcl.ac.uk.			IN	SOA

;; AUTHORITY SECTION:
uk.			172800	IN	NS	ns2.nic.uk.
uk.			172800	IN	NS	ns6.nic.uk.
uk.			172800	IN	NS	ns1.nic.uk.
uk.			172800	IN	NS	nsa.nic.uk.
uk.			172800	IN	NS	ns5.nic.uk.
uk.			172800	IN	NS	nsd.nic.uk.
uk.			172800	IN	NS	ns4.nic.uk.
uk.			172800	IN	NS	nsb.nic.uk.
uk.			172800	IN	NS	nsc.nic.uk.
uk.			172800	IN	NS	ns3.nic.uk.
uk.			172800	IN	NS	ns7.nic.uk.

;; ADDITIONAL SECTION:
ns1.nic.uk.		172800	IN	A	195.66.240.130
ns1.nic.uk.		172800	IN	AAAA	2a01:40:1001:35::2
ns2.nic.uk.		172800	IN	A	217.79.164.131
ns3.nic.uk.		172800	IN	A	213.219.13.131
ns4.nic.uk.		172800	IN	A	194.83.244.131
ns4.nic.uk.		172800	IN	AAAA	2001:630:181:35::83
ns5.nic.uk.		172800	IN	A	213.246.167.131
ns6.nic.uk.		172800	IN	A	213.248.254.130
ns7.nic.uk.		172800	IN	A	212.121.40.130
nsa.nic.uk.		172800	IN	A	156.154.100.3
nsa.nic.uk.		172800	IN	AAAA	2001:502:ad09::3
nsb.nic.uk.		172800	IN	A	156.154.101.3
nsc.nic.uk.		172800	IN	A	156.154.102.3
nsd.nic.uk.		172800	IN	A	156.154.103.3

;; Query time: 36 msec
;; SERVER: 2001:7fe::53#53(i.root-servers.net)
;; WHEN: Mon May 21 13:53:59 2012
;; MSG SIZE  rcvd: 489

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 977
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 0

;; QUESTION SECTION:
;kcl.ac.uk.			IN	SOA

;; AUTHORITY SECTION:
ac.uk.			172800	IN	NS	ns0.ja.net.
ac.uk.			172800	IN	NS	ns3.ja.net.
ac.uk.			172800	IN	NS	ws-fra1.win-ip.dfn.de.
ac.uk.			172800	IN	NS	ns1.surfnet.nl.
ac.uk.			172800	IN	NS	ns2.ja.net.
ac.uk.			172800	IN	NS	auth03.ns.uu.net.
ac.uk.			172800	IN	NS	ns4.ja.net.

;; Query time: 329 msec
;; SERVER: 217.79.164.131#53(ns2.nic.uk)
;; WHEN: Mon May 21 13:54:00 2012
;; MSG SIZE  rcvd: 195

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1708
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 5

;; QUESTION SECTION:
;kcl.ac.uk.			IN	SOA

;; AUTHORITY SECTION:
kcl.ac.uk.		86400	IN	NS	ns3.ja.net.
kcl.ac.uk.		86400	IN	NS	watcnsint.kcl.ac.uk.
kcl.ac.uk.		86400	IN	NS	strcnsint.kcl.ac.uk.
kcl.ac.uk.		86400	IN	NS	guycnsint.kcl.ac.uk.

;; ADDITIONAL SECTION:
ns3.ja.net.		86400	IN	A	193.63.106.103
ns3.ja.net.		86400	IN	AAAA	2001:630:0:46::67
guycnsint.kcl.ac.uk.	86400	IN	A	137.73.118.200
strcnsint.kcl.ac.uk.	86400	IN	A	137.73.118.140
watcnsint.kcl.ac.uk.	86400	IN	A	137.73.118.150

;; Query time: 314 msec
;; SERVER: 2001:630:0:9::14#53(ns0.ja.net)
;; WHEN: Mon May 21 13:54:00 2012
;; MSG SIZE  rcvd: 215

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2016
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;kcl.ac.uk.			IN	SOA

;; ANSWER SECTION:
kcl.ac.uk.		86400	IN	SOA	strcnsint.kcl.ac.uk. dnsadmin.kcl.ac.uk. 2011022925 7200 3600 604800 86400

;; Query time: 317 msec
;; SERVER: 137.73.118.200#53(guycnsint.kcl.ac.uk)
;; WHEN: Mon May 21 13:54:01 2012
;; MSG SIZE  rcvd: 82

HTTP

Looking for CNAME of www.kcl.ac.uk
Checking if there is a AAAA for www.kcl.ac.uk ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.kcl.ac.uk aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1111
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.kcl.ac.uk.			IN	AAAA

;; AUTHORITY SECTION:
kcl.ac.uk.		10800	IN	SOA	strcnsint.kcl.ac.uk. dnsadmin.kcl.ac.uk. 2011022925 7200 3600 604800 86400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 13:54:02 2012
;; MSG SIZE  rcvd: 86

Checking other options ... failed too.

SMTP

MX 10 cluster2.eu.messagelabs.com
Looking for AAAA on cluster2.eu.messagelabs.com
MX 10 cluster2a.eu.messagelabs.com
Looking for AAAA on cluster2a.eu.messagelabs.com

DNS

Looking for AAAA of NS ns3.ja.net
Querying 2001:630:0:46:0:0:0:67 for SOA of kcl.ac.uk over IPv6 ... successful!
Looking for AAAA of NS watcnsint.kcl.ac.uk
No AAAA record for watcnsint.kcl.ac.uk
Looking for AAAA of NS strcnsint.kcl.ac.uk
No AAAA record for strcnsint.kcl.ac.uk
Looking for AAAA of NS dencnsint.kcl.ac.uk
No AAAA record for dencnsint.kcl.ac.uk
Looking for AAAA of NS guycnsint.kcl.ac.uk
No AAAA record for guycnsint.kcl.ac.uk

NTP

Looking for an A record for ntp.kcl.ac.uk
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for ntp.kcl.ac.uk
Cannot find a AAAA record for ntp.ipv6.kcl.ac.uk

XMPP

Looking for a SRV record for _xmpp-client._tcp.kcl.ac.uk
Looking for a SRV record for _xmpp-server._tcp.kcl.ac.uk

Last Updated: Mon May 21 04:24:08 2012 UTC