Check that www.waikato.ac.nz 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 waikato.ac.nz soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 538
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			136826	IN	NS	c.root-servers.net.
.			136826	IN	NS	j.root-servers.net.
.			136826	IN	NS	d.root-servers.net.
.			136826	IN	NS	a.root-servers.net.
.			136826	IN	NS	h.root-servers.net.
.			136826	IN	NS	l.root-servers.net.
.			136826	IN	NS	b.root-servers.net.
.			136826	IN	NS	m.root-servers.net.
.			136826	IN	NS	g.root-servers.net.
.			136826	IN	NS	f.root-servers.net.
.			136826	IN	NS	i.root-servers.net.
.			136826	IN	NS	e.root-servers.net.
.			136826	IN	NS	k.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	6149	IN	A	198.41.0.4
a.root-servers.net.	6149	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	482814	IN	A	192.228.79.201
c.root-servers.net.	352197	IN	A	192.33.4.12
d.root-servers.net.	310546	IN	A	128.8.10.90
d.root-servers.net.	310546	IN	AAAA	2001:500:2d::d
e.root-servers.net.	482814	IN	A	192.203.230.10
f.root-servers.net.	7020	IN	A	192.5.5.241
f.root-servers.net.	311896	IN	AAAA	2001:500:2f::f
g.root-servers.net.	7684	IN	A	192.112.36.4
h.root-servers.net.	569535	IN	A	128.63.2.53
h.root-servers.net.	569535	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	6256	IN	A	192.36.148.17
i.root-servers.net.	6256	IN	AAAA	2001:7fe::53

;; Query time: 10 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 12:17:35 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1781
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 7, ADDITIONAL: 12

;; QUESTION SECTION:
;waikato.ac.nz.			IN	SOA

;; AUTHORITY SECTION:
nz.			172800	IN	NS	ns4.dns.net.nz.
nz.			172800	IN	NS	ns6.dns.net.nz.
nz.			172800	IN	NS	ns2.dns.net.nz.
nz.			172800	IN	NS	ns1.dns.net.nz.
nz.			172800	IN	NS	ns3.dns.net.nz.
nz.			172800	IN	NS	ns5.dns.net.nz.
nz.			172800	IN	NS	ns7.dns.net.nz.

;; ADDITIONAL SECTION:
ns1.dns.net.nz.		172800	IN	A	202.46.190.130
ns1.dns.net.nz.		172800	IN	AAAA	2001:dce:2000:2::130
ns2.dns.net.nz.		172800	IN	A	202.46.187.130
ns2.dns.net.nz.		172800	IN	AAAA	2001:dce:4000:2::130
ns3.dns.net.nz.		172800	IN	A	202.46.188.130
ns4.dns.net.nz.		172800	IN	A	202.46.189.130
ns5.dns.net.nz.		172800	IN	A	156.154.100.14
ns5.dns.net.nz.		172800	IN	AAAA	2001:502:ad09::14
ns6.dns.net.nz.		172800	IN	A	156.154.101.14
ns6.dns.net.nz.		172800	IN	AAAA	2001:502:2eda::14
ns7.dns.net.nz.		172800	IN	A	194.146.106.54
ns7.dns.net.nz.		172800	IN	AAAA	2001:67c:1010:13::53

;; Query time: 196 msec
;; SERVER: 192.33.4.12#53(c.root-servers.net)
;; WHEN: Wed May 23 12:17:35 2012
;; MSG SIZE  rcvd: 417

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 696
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;waikato.ac.nz.			IN	SOA

;; AUTHORITY SECTION:
waikato.ac.nz.		86400	IN	NS	a.ns.waikato.ac.nz.
waikato.ac.nz.		86400	IN	NS	b.ns.waikato.ac.nz.

;; ADDITIONAL SECTION:
a.ns.waikato.ac.nz.	86400	IN	A	130.217.76.99
b.ns.waikato.ac.nz.	86400	IN	A	130.217.66.99

;; Query time: 31 msec
;; SERVER: 2001:67c:1010:13::53#53(ns7.dns.net.nz)
;; WHEN: Wed May 23 12:17:36 2012
;; MSG SIZE  rcvd: 98

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 946
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;waikato.ac.nz.			IN	SOA

;; ANSWER SECTION:
waikato.ac.nz.		86400	IN	SOA	a.ns.waikato.ac.nz. dns.waikato.ac.nz. 2012051801 7200 3600 2592000 86400

;; AUTHORITY SECTION:
waikato.ac.nz.		86400	IN	NS	b.ns.waikato.ac.nz.
waikato.ac.nz.		86400	IN	NS	a.ns.waikato.ac.nz.

;; ADDITIONAL SECTION:
a.ns.waikato.ac.nz.	86400	IN	A	130.217.76.99
b.ns.waikato.ac.nz.	86400	IN	A	130.217.66.99

;; Query time: 49 msec
;; SERVER: 130.217.76.99#53(a.ns.waikato.ac.nz)
;; WHEN: Wed May 23 12:17:36 2012
;; MSG SIZE  rcvd: 138

HTTP

Looking for CNAME of www.waikato.ac.nz
Checking if there is a AAAA for www.waikato.ac.nz ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.waikato.ac.nz aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.waikato.ac.nz.		IN	AAAA

;; ANSWER SECTION:
www.waikato.ac.nz.	153	IN	CNAME	www.ha.waikato.ac.nz.

;; AUTHORITY SECTION:
ha.waikato.ac.nz.	10800	IN	SOA	a.ns.waikato.ac.nz. soa.waikato.ac.nz. 2003051465 72060 3600 2592000 86400

;; Query time: 6 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 12:17:36 2012
;; MSG SIZE  rcvd: 101

Checking other options ... failed too.

SMTP

MX 10 mx2.its.waikato.ac.nz
Looking for AAAA on mx2.its.waikato.ac.nz
MX 10 mx1.its.waikato.ac.nz
Looking for AAAA on mx1.its.waikato.ac.nz

DNS

Looking for AAAA of NS b.ns.waikato.ac.nz
No AAAA record for b.ns.waikato.ac.nz
Looking for AAAA of NS a.ns.waikato.ac.nz
No AAAA record for a.ns.waikato.ac.nz

NTP

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

XMPP

Looking for a SRV record for _xmpp-client._tcp.waikato.ac.nz
Looking for a SRV record for _xmpp-server._tcp.waikato.ac.nz

Last Updated: Wed May 23 02:47:37 2012 UTC