Check that www.us.ntt.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 us.ntt.com soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1054
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			117635	IN	NS	f.root-servers.net.
.			117635	IN	NS	g.root-servers.net.
.			117635	IN	NS	i.root-servers.net.
.			117635	IN	NS	e.root-servers.net.
.			117635	IN	NS	k.root-servers.net.
.			117635	IN	NS	j.root-servers.net.
.			117635	IN	NS	c.root-servers.net.
.			117635	IN	NS	l.root-servers.net.
.			117635	IN	NS	b.root-servers.net.
.			117635	IN	NS	m.root-servers.net.
.			117635	IN	NS	d.root-servers.net.
.			117635	IN	NS	h.root-servers.net.
.			117635	IN	NS	a.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	506230	IN	A	198.41.0.4
a.root-servers.net.	506230	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	463623	IN	A	192.228.79.201
c.root-servers.net.	333006	IN	A	192.33.4.12
d.root-servers.net.	291355	IN	A	128.8.10.90
d.root-servers.net.	291355	IN	AAAA	2001:500:2d::d
e.root-servers.net.	463623	IN	A	192.203.230.10
f.root-servers.net.	506230	IN	A	192.5.5.241
f.root-servers.net.	292705	IN	AAAA	2001:500:2f::f
g.root-servers.net.	506901	IN	A	192.112.36.4
h.root-servers.net.	506230	IN	A	128.63.2.53
h.root-servers.net.	506230	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	506230	IN	A	192.36.148.17
i.root-servers.net.	506230	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 17:37:26 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1409
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;us.ntt.com.			IN	SOA

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

;; ADDITIONAL SECTION:
a.gtld-servers.net.	172800	IN	A	192.5.6.30
a.gtld-servers.net.	172800	IN	AAAA	2001:503:a83e::2:30
b.gtld-servers.net.	172800	IN	A	192.33.14.30
b.gtld-servers.net.	172800	IN	AAAA	2001:503:231d::2:30
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

;; Query time: 36 msec
;; SERVER: 2001:7fe::53#53(i.root-servers.net)
;; WHEN: Wed May 23 17:37:26 2012
;; MSG SIZE  rcvd: 500

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1354
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;us.ntt.com.			IN	SOA

;; AUTHORITY SECTION:
ntt.com.		172800	IN	NS	ns-os001.ocn.ad.jp.
ntt.com.		172800	IN	NS	pns.ocn.ad.jp.

;; Query time: 344 msec
;; SERVER: 192.52.178.30#53(k.gtld-servers.net)
;; WHEN: Wed May 23 17:37:26 2012
;; MSG SIZE  rcvd: 78

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 330
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;us.ntt.com.			IN	SOA

;; AUTHORITY SECTION:
us.ntt.com.		86400	IN	NS	ns0.eu.verio.net.
us.ntt.com.		86400	IN	NS	ns1.eu.verio.net.

;; ADDITIONAL SECTION:
ns0.eu.verio.net.	31497	IN	A	213.130.44.253
ns1.eu.verio.net.	31497	IN	A	213.198.65.226

;; Query time: 217 msec
;; SERVER: 203.139.161.37#53(ns-os001.ocn.ad.jp)
;; WHEN: Wed May 23 17:37:27 2012
;; MSG SIZE  rcvd: 108

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2023
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;us.ntt.com.			IN	SOA

;; ANSWER SECTION:
us.ntt.com.		86400	IN	SOA	ns0.eu.verio.net. hostmaster.us.ntt.com. 1337760364 16384 2048 1048576 2560

;; AUTHORITY SECTION:
us.ntt.com.		86400	IN	NS	ns0.eu.verio.net.
us.ntt.com.		86400	IN	NS	ns1.eu.verio.net.

;; ADDITIONAL SECTION:
ns0.eu.verio.net.	172800	IN	A	213.130.44.253
ns1.eu.verio.net.	172800	IN	A	213.198.65.226

;; Query time: 342 msec
;; SERVER: 213.198.65.226#53(ns1.eu.verio.net)
;; WHEN: Wed May 23 17:37:28 2012
;; MSG SIZE  rcvd: 155

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.us.ntt.com aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 577
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.us.ntt.com.			IN	AAAA

;; ANSWER SECTION:
www.us.ntt.com.		299	IN	CNAME	us.ntt.com.

;; AUTHORITY SECTION:
us.ntt.com.		10800	IN	SOA	ns0.eu.verio.net. hostmaster.us.ntt.com. 1337760364 16384 2048 1048576 2560

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 17:37:29 2012
;; MSG SIZE  rcvd: 109

Checking other options ... failed too.

SMTP

DNS

Looking for AAAA of NS ns1.eu.verio.net
No AAAA record for ns1.eu.verio.net
Looking for AAAA of NS ns0.eu.verio.net
No AAAA record for ns0.eu.verio.net

NTP

Looking for an A record for ntp.us.ntt.com
Looking for an A record for clock.us.ntt.com
Looking for an A record for time.us.ntt.com
Looking for an A record for chime.us.ntt.com

XMPP

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

Last Updated: Wed May 23 08:07:34 2012 UTC