Check that www.lboro.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 lboro.ac.uk soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2031
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			303473	IN	NS	h.root-servers.net.
.			303473	IN	NS	d.root-servers.net.
.			303473	IN	NS	c.root-servers.net.
.			303473	IN	NS	g.root-servers.net.
.			303473	IN	NS	l.root-servers.net.
.			303473	IN	NS	k.root-servers.net.
.			303473	IN	NS	e.root-servers.net.
.			303473	IN	NS	a.root-servers.net.
.			303473	IN	NS	b.root-servers.net.
.			303473	IN	NS	i.root-servers.net.
.			303473	IN	NS	j.root-servers.net.
.			303473	IN	NS	m.root-servers.net.
.			303473	IN	NS	f.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	172796	IN	A	198.41.0.4
a.root-servers.net.	172796	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	131060	IN	A	192.228.79.201
c.root-servers.net.	518844	IN	A	192.33.4.12
d.root-servers.net.	477193	IN	A	128.8.10.90
d.root-servers.net.	477193	IN	AAAA	2001:500:2d::d
e.root-servers.net.	128380	IN	A	192.203.230.10
f.root-servers.net.	173667	IN	A	192.5.5.241
f.root-servers.net.	478543	IN	AAAA	2001:500:2f::f
g.root-servers.net.	174331	IN	A	192.112.36.4
h.root-servers.net.	131369	IN	A	128.63.2.53
h.root-servers.net.	131369	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	172903	IN	A	192.36.148.17
i.root-servers.net.	172903	IN	AAAA	2001:7fe::53

;; Query time: 13 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 14:00:08 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1308
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 11, ADDITIONAL: 14

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

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

;; ADDITIONAL SECTION:
ns1.nic.uk.		172800	IN	A	195.66.240.130
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
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
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
ns1.nic.uk.		172800	IN	AAAA	2a01:40:1001:35::2
ns4.nic.uk.		172800	IN	AAAA	2001:630:181:35::83
nsa.nic.uk.		172800	IN	AAAA	2001:502:ad09::3

;; Query time: 129 msec
;; SERVER: 192.112.36.4#53(g.root-servers.net)
;; WHEN: Mon May 21 14:00:08 2012
;; MSG SIZE  rcvd: 491

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 618
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 0

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

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

;; Query time: 238 msec
;; SERVER: 156.154.102.3#53(nsc.nic.uk)
;; WHEN: Mon May 21 14:00:09 2012
;; MSG SIZE  rcvd: 197

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1989
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 8

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

;; AUTHORITY SECTION:
lboro.ac.uk.		86400	IN	NS	agate.lut.ac.uk.
lboro.ac.uk.		86400	IN	NS	ns3.ja.net.
lboro.ac.uk.		86400	IN	NS	cgate.lut.ac.uk.
lboro.ac.uk.		86400	IN	NS	bgate.lut.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
agate.lut.ac.uk.	86400	IN	A	158.125.1.100
agate.lut.ac.uk.	86400	IN	AAAA	2001:630:301:1002::a53
bgate.lut.ac.uk.	86400	IN	A	131.231.16.7
bgate.lut.ac.uk.	86400	IN	AAAA	2001:630:301:4605::b53
cgate.lut.ac.uk.	86400	IN	A	131.231.16.16
cgate.lut.ac.uk.	86400	IN	AAAA	2001:630:301:2905::c53

;; Query time: 318 msec
;; SERVER: 2001:630:0:9::14#53(ns0.ja.net)
;; WHEN: Mon May 21 14:00:09 2012
;; MSG SIZE  rcvd: 293

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1704
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 2

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

;; ANSWER SECTION:
lboro.ac.uk.		86400	IN	SOA	agate.lut.ac.uk. postmaster.lut.ac.uk. 2012051862 7200 900 1209600 86400

;; AUTHORITY SECTION:
lboro.ac.uk.		86400	IN	NS	ns3.ja.net.
lboro.ac.uk.		86400	IN	NS	cgate.lut.ac.uk.
lboro.ac.uk.		86400	IN	NS	agate.lut.ac.uk.
lboro.ac.uk.		86400	IN	NS	bgate.lut.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

;; Query time: 321 msec
;; SERVER: 2001:630:0:46::67#53(ns3.ja.net)
;; WHEN: Mon May 21 14:00:10 2012
;; MSG SIZE  rcvd: 208

HTTP

Looking for CNAME of www.lboro.ac.uk
Checking if there is a AAAA for www.lboro.ac.uk ... success.
Sending...

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

Reading ...

HTTP/1.1 200 OK
Date: Mon, 21 May 2012 04:30:12 GMT
Server: Apache/2.0.54 (Fedora)
Last-Modified: Fri, 18 May 2012 15:34:12 GMT
ETag: "3c450c-4e36-48bbe500"
Accept-Ranges: bytes
Content-Length: 20022
Content-Type: text/html

Accessed / [2001:630:301:1002:0:0:0:80] Response: HTTP/1.1 200 OK

SMTP

MX 1 bill.lut.ac.uk
Looking for AAAA on bill.lut.ac.uk
MX 1 ben.lut.ac.uk
Looking for AAAA on ben.lut.ac.uk
MX 1 boo.lut.ac.uk
Looking for AAAA on boo.lut.ac.uk

DNS

Looking for AAAA of NS agate.lut.ac.uk
Querying 2001:630:301:1002:0:0:0:a53 for SOA of lboro.ac.uk over IPv6 ... successful!
Looking for AAAA of NS cgate.lut.ac.uk
Querying 2001:630:301:2905:0:0:0:c53 for SOA of lboro.ac.uk over IPv6 ... successful!
Looking for AAAA of NS bgate.lut.ac.uk
Querying 2001:630:301:4605:0:0:0:b53 for SOA of lboro.ac.uk over IPv6 ... successful!
Looking for AAAA of NS ns3.ja.net
Querying 2001:630:0:46:0:0:0:67 for SOA of lboro.ac.uk over IPv6 ... successful!

NTP

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

XMPP

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

Last Updated: Mon May 21 04:30:18 2012 UTC