Check that www.melbourneit.com.au 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 melbourneit.com.au soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1541
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			300087	IN	NS	a.root-servers.net.
.			300087	IN	NS	k.root-servers.net.
.			300087	IN	NS	h.root-servers.net.
.			300087	IN	NS	b.root-servers.net.
.			300087	IN	NS	j.root-servers.net.
.			300087	IN	NS	e.root-servers.net.
.			300087	IN	NS	g.root-servers.net.
.			300087	IN	NS	l.root-servers.net.
.			300087	IN	NS	i.root-servers.net.
.			300087	IN	NS	d.root-servers.net.
.			300087	IN	NS	m.root-servers.net.
.			300087	IN	NS	c.root-servers.net.
.			300087	IN	NS	f.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	169410	IN	A	198.41.0.4
a.root-servers.net.	169410	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	127674	IN	A	192.228.79.201
c.root-servers.net.	515458	IN	A	192.33.4.12
d.root-servers.net.	473807	IN	A	128.8.10.90
d.root-servers.net.	473807	IN	AAAA	2001:500:2d::d
e.root-servers.net.	124994	IN	A	192.203.230.10
f.root-servers.net.	170281	IN	A	192.5.5.241
f.root-servers.net.	475157	IN	AAAA	2001:500:2f::f
g.root-servers.net.	170945	IN	A	192.112.36.4
h.root-servers.net.	127983	IN	A	128.63.2.53
h.root-servers.net.	127983	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	169517	IN	A	192.36.148.17
i.root-servers.net.	169517	IN	AAAA	2001:7fe::53

;; Query time: 12 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 14:56:34 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 977
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 12, ADDITIONAL: 15

;; QUESTION SECTION:
;melbourneit.com.au.		IN	SOA

;; AUTHORITY SECTION:
au.			172800	IN	NS	a.au.
au.			172800	IN	NS	h.au.
au.			172800	IN	NS	r.au.
au.			172800	IN	NS	v.au.
au.			172800	IN	NS	m.au.
au.			172800	IN	NS	l.au.
au.			172800	IN	NS	b.au.
au.			172800	IN	NS	p.au.
au.			172800	IN	NS	o.au.
au.			172800	IN	NS	n.au.
au.			172800	IN	NS	s.au.
au.			172800	IN	NS	u.au.

;; ADDITIONAL SECTION:
a.au.			172800	IN	A	58.65.254.73
b.au.			172800	IN	A	58.65.253.73
h.au.			172800	IN	A	202.65.13.73
l.au.			172800	IN	A	209.112.113.34
l.au.			172800	IN	AAAA	2001:500:856e::6:34
m.au.			172800	IN	A	209.112.114.34
n.au.			172800	IN	A	69.36.145.34
o.au.			172800	IN	A	69.36.146.34
p.au.			172800	IN	A	72.13.46.34
r.au.			172800	IN	A	128.32.136.3
r.au.			172800	IN	AAAA	2607:f140:ffff:fffe::3
s.au.			172800	IN	A	128.32.136.14
s.au.			172800	IN	AAAA	2607:f140:ffff:fffe::e
u.au.			172800	IN	A	211.29.133.32
v.au.			172800	IN	A	202.12.31.141

;; Query time: 134 msec
;; SERVER: 2001:503:c27::2:30#53(j.root-servers.net)
;; WHEN: Mon May 21 14:56:34 2012
;; MSG SIZE  rcvd: 504

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 984
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 11, ADDITIONAL: 12

;; QUESTION SECTION:
;melbourneit.com.au.		IN	SOA

;; AUTHORITY SECTION:
com.au.			172800	IN	NS	n.au.
com.au.			172800	IN	NS	p.au.
com.au.			172800	IN	NS	g.au.
com.au.			172800	IN	NS	q.au.
com.au.			172800	IN	NS	m.au.
com.au.			172800	IN	NS	k.au.
com.au.			172800	IN	NS	o.au.
com.au.			172800	IN	NS	i.au.
com.au.			172800	IN	NS	j.au.
com.au.			172800	IN	NS	l.au.
com.au.			172800	IN	NS	h.au.

;; ADDITIONAL SECTION:
g.au.			172800	IN	A	202.65.12.73
h.au.			172800	IN	A	202.65.13.73
i.au.			172800	IN	A	202.65.12.72
j.au.			172800	IN	A	202.65.13.72
k.au.			172800	IN	A	202.65.12.71
l.au.			172800	IN	A	209.112.113.34
l.au.			172800	IN	AAAA	2001:500:856e::6:34
m.au.			172800	IN	A	209.112.114.34
n.au.			172800	IN	A	69.36.145.34
o.au.			172800	IN	A	69.36.146.34
p.au.			172800	IN	A	72.13.46.34
q.au.			172800	IN	A	72.13.47.34

;; Query time: 188 msec
;; SERVER: 2607:f140:ffff:fffe::e#53(s.au)
;; WHEN: Mon May 21 14:56:34 2012
;; MSG SIZE  rcvd: 416

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1301
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;melbourneit.com.au.		IN	SOA

;; AUTHORITY SECTION:
melbourneit.com.au.	14400	IN	NS	ns2.melbourneit.com.au.
melbourneit.com.au.	14400	IN	NS	ns1.melbourneit.com.au.

;; ADDITIONAL SECTION:
ns1.melbourneit.com.au.	14400	IN	A	203.27.227.50
ns2.melbourneit.com.au.	14400	IN	A	203.31.199.135

;; Query time: 123 msec
;; SERVER: 69.36.145.34#53(n.au)
;; WHEN: Mon May 21 14:56:34 2012
;; MSG SIZE  rcvd: 104

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 486
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;melbourneit.com.au.		IN	SOA

;; ANSWER SECTION:
melbourneit.com.au.	14400	IN	SOA	ns1.melbourneit.com.au. it.melbourneit.com.au. 2012041701 7200 1800 604800 14400

;; AUTHORITY SECTION:
melbourneit.com.au.	14400	IN	NS	ns1.melbourneit.com.au.
melbourneit.com.au.	14400	IN	NS	ns2.melbourneit.com.au.

;; ADDITIONAL SECTION:
ns1.melbourneit.com.au.	14400	IN	A	203.27.227.50
ns2.melbourneit.com.au.	14400	IN	A	203.31.199.135

;; Query time: 35 msec
;; SERVER: 203.31.199.135#53(ns2.melbourneit.com.au)
;; WHEN: Mon May 21 14:56:34 2012
;; MSG SIZE  rcvd: 143

HTTP

Looking for CNAME of www.melbourneit.com.au
Checking if there is a AAAA for www.melbourneit.com.au ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.melbourneit.com.au aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1007
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.melbourneit.com.au.		IN	AAAA

;; AUTHORITY SECTION:
melbourneit.com.au.	10799	IN	SOA	ns1.melbourneit.com.au. it.melbourneit.com.au. 2012041701 7200 1800 604800 14400

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 14:56:35 2012
;; MSG SIZE  rcvd: 83

Checking other options ... failed too.

SMTP

MX 10 mx1.bne.server-mail.com
Looking for AAAA on mx1.bne.server-mail.com
MX 10 mx2.bne.server-mail.com
Looking for AAAA on mx2.bne.server-mail.com
MX 10 mx3.bne.server-mail.com
Looking for AAAA on mx3.bne.server-mail.com

DNS

Looking for AAAA of NS ns1.melbourneit.com.au
No AAAA record for ns1.melbourneit.com.au
Looking for AAAA of NS ns2.melbourneit.com.au
No AAAA record for ns2.melbourneit.com.au

NTP

Looking for an A record for ntp.melbourneit.com.au
Looking for an A record for clock.melbourneit.com.au
Looking for an A record for time.melbourneit.com.au
Looking for an A record for chime.melbourneit.com.au

XMPP

Looking for a SRV record for _xmpp-client._tcp.melbourneit.com.au
Looking for a SRV record for _xmpp-server._tcp.melbourneit.com.au

Last Updated: Mon May 21 05:26:35 2012 UTC