Check that www.sun.com 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 sun.com soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 353
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			243440	IN	NS	k.root-servers.net.
.			243440	IN	NS	j.root-servers.net.
.			243440	IN	NS	b.root-servers.net.
.			243440	IN	NS	d.root-servers.net.
.			243440	IN	NS	l.root-servers.net.
.			243440	IN	NS	c.root-servers.net.
.			243440	IN	NS	f.root-servers.net.
.			243440	IN	NS	e.root-servers.net.
.			243440	IN	NS	a.root-servers.net.
.			243440	IN	NS	m.root-servers.net.
.			243440	IN	NS	i.root-servers.net.
.			243440	IN	NS	h.root-servers.net.
.			243440	IN	NS	g.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	112763	IN	A	198.41.0.4
a.root-servers.net.	112763	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	71027	IN	A	192.228.79.201
c.root-servers.net.	458811	IN	A	192.33.4.12
d.root-servers.net.	417160	IN	A	128.8.10.90
d.root-servers.net.	417160	IN	AAAA	2001:500:2d::d
e.root-servers.net.	68347	IN	A	192.203.230.10
f.root-servers.net.	113634	IN	A	192.5.5.241
f.root-servers.net.	418510	IN	AAAA	2001:500:2f::f
g.root-servers.net.	114298	IN	A	192.112.36.4
h.root-servers.net.	71336	IN	A	128.63.2.53
h.root-servers.net.	71336	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	112870	IN	A	192.36.148.17
i.root-servers.net.	112870	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 06:40:41 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1221
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;sun.com.			IN	SOA

;; AUTHORITY SECTION:
com.			172800	IN	NS	c.gtld-servers.net.
com.			172800	IN	NS	j.gtld-servers.net.
com.			172800	IN	NS	e.gtld-servers.net.
com.			172800	IN	NS	d.gtld-servers.net.
com.			172800	IN	NS	g.gtld-servers.net.
com.			172800	IN	NS	h.gtld-servers.net.
com.			172800	IN	NS	f.gtld-servers.net.
com.			172800	IN	NS	l.gtld-servers.net.
com.			172800	IN	NS	k.gtld-servers.net.
com.			172800	IN	NS	a.gtld-servers.net.
com.			172800	IN	NS	b.gtld-servers.net.
com.			172800	IN	NS	i.gtld-servers.net.
com.			172800	IN	NS	m.gtld-servers.net.

;; ADDITIONAL SECTION:
a.gtld-servers.net.	172800	IN	A	192.5.6.30
b.gtld-servers.net.	172800	IN	A	192.33.14.30
c.gtld-servers.net.	172800	IN	A	192.26.92.30
d.gtld-servers.net.	172800	IN	A	192.31.80.30
e.gtld-servers.net.	172800	IN	A	192.12.94.30
f.gtld-servers.net.	172800	IN	A	192.35.51.30
g.gtld-servers.net.	172800	IN	A	192.42.93.30
h.gtld-servers.net.	172800	IN	A	192.54.112.30
i.gtld-servers.net.	172800	IN	A	192.43.172.30
j.gtld-servers.net.	172800	IN	A	192.48.79.30
k.gtld-servers.net.	172800	IN	A	192.52.178.30
l.gtld-servers.net.	172800	IN	A	192.41.162.30
m.gtld-servers.net.	172800	IN	A	192.55.83.30
a.gtld-servers.net.	172800	IN	AAAA	2001:503:a83e::2:30

;; Query time: 250 msec
;; SERVER: 2001:500:2d::d#53(d.root-servers.net)
;; WHEN: Tue May 22 06:40:41 2012
;; MSG SIZE  rcvd: 485

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 906
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;sun.com.			IN	SOA

;; AUTHORITY SECTION:
sun.com.		172800	IN	NS	ns1.oracle.com.
sun.com.		172800	IN	NS	ns4.oracle.com.
sun.com.		172800	IN	NS	ns2.sun.com.
sun.com.		172800	IN	NS	ns1.sun.com.

;; ADDITIONAL SECTION:
ns1.oracle.com.		172800	IN	A	148.87.1.20
ns4.oracle.com.		172800	IN	A	148.87.112.100
ns2.sun.com.		172800	IN	A	192.18.99.5
ns1.sun.com.		172800	IN	A	192.18.128.11

;; Query time: 345 msec
;; SERVER: 192.52.178.30#53(k.gtld-servers.net)
;; WHEN: Tue May 22 06:40:41 2012
;; MSG SIZE  rcvd: 168

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 929
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;sun.com.			IN	SOA

;; ANSWER SECTION:
sun.com.		10800	IN	SOA	ns1.sun.com. hostmaster.sun.com. 2012042705 10800 3600 604800 900

;; AUTHORITY SECTION:
sun.com.		10800	IN	NS	ns2.sun.com.
sun.com.		10800	IN	NS	ns1.sun.com.
sun.com.		10800	IN	NS	ns7.sun.com.
sun.com.		10800	IN	NS	ns8.sun.com.

;; ADDITIONAL SECTION:
ns1.sun.com.		10800	IN	A	192.18.128.11
ns2.sun.com.		10800	IN	A	192.18.99.5
ns7.sun.com.		10800	IN	A	148.87.1.20
ns8.sun.com.		10800	IN	A	148.87.112.100

;; Query time: 181 msec
;; SERVER: 148.87.1.20#53(ns1.oracle.com)
;; WHEN: Tue May 22 06:40:42 2012
;; MSG SIZE  rcvd: 208

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.sun.com aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1996
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.sun.com.			IN	AAAA

;; ANSWER SECTION:
www.sun.com.		1799	IN	CNAME	legacy-sun.oraclegha.com.

;; AUTHORITY SECTION:
oraclegha.com.		900	IN	SOA	gdns1.oracle.com. hostmaster.oracle.com. 2007111686 21600 3600 604800 900

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 06:40:43 2012
;; MSG SIZE  rcvd: 124

Checking other options ... failed too.

SMTP

MX 5 acsinet40.oracle.com
Looking for AAAA on acsinet40.oracle.com
MX 5 ucsinet40.oracle.com
Looking for AAAA on ucsinet40.oracle.com
MX 5 mx3.sun.com
Looking for AAAA on mx3.sun.com
MX 5 mx4.sun.com
Looking for AAAA on mx4.sun.com

DNS

Looking for AAAA of NS ns2.sun.com
No AAAA record for ns2.sun.com
Looking for AAAA of NS ns7.sun.com
No AAAA record for ns7.sun.com
Looking for AAAA of NS ns8.sun.com
No AAAA record for ns8.sun.com
Looking for AAAA of NS ns1.sun.com
No AAAA record for ns1.sun.com

NTP

Looking for an A record for ntp.sun.com
Looking for an A record for clock.sun.com
Looking for an A record for time.sun.com
Looking for an A record for chime.sun.com

XMPP

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

Last Updated: Mon May 21 21:10:47 2012 UTC