Check that www.ncl.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 ncl.ac.uk soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			303442	IN	NS	l.root-servers.net.
.			303442	IN	NS	a.root-servers.net.
.			303442	IN	NS	i.root-servers.net.
.			303442	IN	NS	f.root-servers.net.
.			303442	IN	NS	m.root-servers.net.
.			303442	IN	NS	j.root-servers.net.
.			303442	IN	NS	h.root-servers.net.
.			303442	IN	NS	g.root-servers.net.
.			303442	IN	NS	b.root-servers.net.
.			303442	IN	NS	k.root-servers.net.
.			303442	IN	NS	d.root-servers.net.
.			303442	IN	NS	e.root-servers.net.
.			303442	IN	NS	c.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	172765	IN	A	198.41.0.4
a.root-servers.net.	172765	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	131029	IN	A	192.228.79.201
c.root-servers.net.	518813	IN	A	192.33.4.12
d.root-servers.net.	477162	IN	A	128.8.10.90
d.root-servers.net.	477162	IN	AAAA	2001:500:2d::d
e.root-servers.net.	128349	IN	A	192.203.230.10
f.root-servers.net.	173636	IN	A	192.5.5.241
f.root-servers.net.	478512	IN	AAAA	2001:500:2f::f
g.root-servers.net.	174300	IN	A	192.112.36.4
h.root-servers.net.	131338	IN	A	128.63.2.53
h.root-servers.net.	131338	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	172872	IN	A	192.36.148.17
i.root-servers.net.	172872	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 14:00:39 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 521
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 11, ADDITIONAL: 14

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

;; AUTHORITY SECTION:
uk.			172800	IN	NS	ns1.nic.uk.
uk.			172800	IN	NS	ns2.nic.uk.
uk.			172800	IN	NS	ns3.nic.uk.
uk.			172800	IN	NS	ns4.nic.uk.
uk.			172800	IN	NS	ns5.nic.uk.
uk.			172800	IN	NS	ns6.nic.uk.
uk.			172800	IN	NS	ns7.nic.uk.
uk.			172800	IN	NS	nsa.nic.uk.
uk.			172800	IN	NS	nsb.nic.uk.
uk.			172800	IN	NS	nsc.nic.uk.
uk.			172800	IN	NS	nsd.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: 25 msec
;; SERVER: 2001:500:3::42#53(l.root-servers.net)
;; WHEN: Mon May 21 14:00:39 2012
;; MSG SIZE  rcvd: 489

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 269
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 0

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

;; AUTHORITY SECTION:
ac.uk.			172800	IN	NS	ns4.ja.net.
ac.uk.			172800	IN	NS	auth03.ns.uu.net.
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.

;; Query time: 229 msec
;; SERVER: 156.154.101.3#53(nsb.nic.uk)
;; WHEN: Mon May 21 14:00:39 2012
;; MSG SIZE  rcvd: 195

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1703
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

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

;; AUTHORITY SECTION:
ncl.ac.uk.		86400	IN	NS	dns0.ncl.ac.uk.
ncl.ac.uk.		86400	IN	NS	dns1.ncl.ac.uk.
ncl.ac.uk.		86400	IN	NS	dns2.ncl.ac.uk.

;; ADDITIONAL SECTION:
dns0.ncl.ac.uk.		86400	IN	A	128.240.2.80
dns1.ncl.ac.uk.		86400	IN	A	128.240.229.18
dns2.ncl.ac.uk.		86400	IN	A	128.240.229.34

;; Query time: 321 msec
;; SERVER: 2001:630:0:46::67#53(ns3.ja.net)
;; WHEN: Mon May 21 14:00:40 2012
;; MSG SIZE  rcvd: 132

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1641
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 3

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

;; ANSWER SECTION:
ncl.ac.uk.		86400	IN	SOA	dns0.ncl.ac.uk. hostmaster.newcastle.ac.uk. 2012051900 10800 3600 604800 3600

;; AUTHORITY SECTION:
ncl.ac.uk.		86400	IN	NS	dennis.cent.gla.ac.uk.
ncl.ac.uk.		86400	IN	NS	dns2.ncl.ac.uk.
ncl.ac.uk.		86400	IN	NS	dns0.ncl.ac.uk.
ncl.ac.uk.		86400	IN	NS	dns1.ncl.ac.uk.

;; ADDITIONAL SECTION:
dns0.ncl.ac.uk.		86400	IN	A	128.240.2.80
dns1.ncl.ac.uk.		86400	IN	A	128.240.229.18
dns2.ncl.ac.uk.		86400	IN	A	128.240.229.34

;; Query time: 326 msec
;; SERVER: 128.240.229.34#53(dns2.ncl.ac.uk)
;; WHEN: Mon May 21 14:00:41 2012
;; MSG SIZE  rcvd: 219

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.ncl.ac.uk aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1611
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.ncl.ac.uk.		10799	IN	CNAME	spade97.ncl.ac.uk.

;; AUTHORITY SECTION:
ncl.ac.uk.		3600	IN	SOA	dns0.ncl.ac.uk. hostmaster.newcastle.ac.uk. 2012051900 10800 3600 604800 3600

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 14:00:42 2012
;; MSG SIZE  rcvd: 115

Checking other options ... succeeded as ipv6.ncl.ac.uk.
Connection failed: IO::Socket::INET6: connect: Connection timed out

Ping to ipv6.ncl.ac.uk [2001:630:a0:4000:0:0:0:5]

no answer from 2001:630:a0:4000:0:0:0:5

Traceroute to ipv6.ncl.ac.uk [2001:630:a0:4000:0:0:0:5]

 1  2001:44b8:60::1  0.724 ms  0.922 ms  0.620 ms
 2  2001:44b8:8060:18::6  1.004 ms  1.100 ms  0.733 ms
 3  2001:44b8:8060:34::1  9.016 ms  0.921 ms  0.593 ms
 4  2001:44b8:b060:7::2  20.333 ms  20.286 ms  20.302 ms
 5  2001:44b8:b060:1::22  175.608 ms  175.817 ms  175.582 ms
 6  2001:44b8:f030:4::2  235.369 ms  235.320 ms  235.236 ms
 7  2001:44b8:f030:5::2  309.700 ms  309.782 ms  309.812 ms
 8  2001:7f8:4::312:1  309.646 ms  309.613 ms  357.576 ms
 9  2001:630:0:10::151  309.739 ms  309.624 ms  309.664 ms
10  2001:630:0:10::192  309.970 ms  309.739 ms  309.738 ms
11  * * *
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19  * * *
20  * * *
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28  * * *
29  * * *
30  * * *

SMTP

MX 10 cheviot21.ncl.ac.uk
Looking for AAAA on cheviot21.ncl.ac.uk
MX 10 cheviot10.ncl.ac.uk
Looking for AAAA on cheviot10.ncl.ac.uk
MX 10 cheviot11.ncl.ac.uk
Looking for AAAA on cheviot11.ncl.ac.uk
MX 10 cheviot20.ncl.ac.uk
Looking for AAAA on cheviot20.ncl.ac.uk

DNS

Looking for AAAA of NS dns2.ncl.ac.uk
No AAAA record for dns2.ncl.ac.uk
Looking for AAAA of NS dns1.ncl.ac.uk
No AAAA record for dns1.ncl.ac.uk
Looking for AAAA of NS dns0.ncl.ac.uk
No AAAA record for dns0.ncl.ac.uk
Looking for AAAA of NS dennis.cent.gla.ac.uk
No AAAA record for dennis.cent.gla.ac.uk

NTP

Looking for an A record for ntp.ncl.ac.uk
Looking for an A record for clock.ncl.ac.uk
Looking for an A record for time.ncl.ac.uk
Looking for an A record for chime.ncl.ac.uk

XMPP

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

Last Updated: Mon May 21 04:39:41 2012 UTC