Check that www.interstream.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 interstream.com soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 504
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			295184	IN	NS	i.root-servers.net.
.			295184	IN	NS	b.root-servers.net.
.			295184	IN	NS	a.root-servers.net.
.			295184	IN	NS	k.root-servers.net.
.			295184	IN	NS	f.root-servers.net.
.			295184	IN	NS	g.root-servers.net.
.			295184	IN	NS	c.root-servers.net.
.			295184	IN	NS	l.root-servers.net.
.			295184	IN	NS	d.root-servers.net.
.			295184	IN	NS	j.root-servers.net.
.			295184	IN	NS	e.root-servers.net.
.			295184	IN	NS	m.root-servers.net.
.			295184	IN	NS	h.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	164507	IN	A	198.41.0.4
a.root-servers.net.	164507	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	122771	IN	A	192.228.79.201
c.root-servers.net.	510555	IN	A	192.33.4.12
d.root-servers.net.	468904	IN	A	128.8.10.90
d.root-servers.net.	468904	IN	AAAA	2001:500:2d::d
e.root-servers.net.	120091	IN	A	192.203.230.10
f.root-servers.net.	165378	IN	A	192.5.5.241
f.root-servers.net.	470254	IN	AAAA	2001:500:2f::f
g.root-servers.net.	166042	IN	A	192.112.36.4
h.root-servers.net.	123080	IN	A	128.63.2.53
h.root-servers.net.	123080	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	164614	IN	A	192.36.148.17
i.root-servers.net.	164614	IN	AAAA	2001:7fe::53

;; Query time: 14 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 16:18:17 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 464
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

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

;; AUTHORITY SECTION:
com.			172800	IN	NS	k.gtld-servers.net.
com.			172800	IN	NS	a.gtld-servers.net.
com.			172800	IN	NS	h.gtld-servers.net.
com.			172800	IN	NS	e.gtld-servers.net.
com.			172800	IN	NS	g.gtld-servers.net.
com.			172800	IN	NS	c.gtld-servers.net.
com.			172800	IN	NS	d.gtld-servers.net.
com.			172800	IN	NS	l.gtld-servers.net.
com.			172800	IN	NS	j.gtld-servers.net.
com.			172800	IN	NS	b.gtld-servers.net.
com.			172800	IN	NS	f.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: Mon May 21 16:18:17 2012
;; MSG SIZE  rcvd: 493

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1043
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

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

;; AUTHORITY SECTION:
interstream.com.	172800	IN	NS	ns43.domaincontrol.com.
interstream.com.	172800	IN	NS	ns44.domaincontrol.com.

;; ADDITIONAL SECTION:
ns43.domaincontrol.com.	172800	IN	A	216.69.185.22
ns44.domaincontrol.com.	172800	IN	A	208.109.255.22

;; Query time: 181 msec
;; SERVER: 192.35.51.30#53(f.gtld-servers.net)
;; WHEN: Mon May 21 16:18:17 2012
;; MSG SIZE  rcvd: 117

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1493
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

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

;; ANSWER SECTION:
interstream.com.	3600	IN	SOA	ns43.domaincontrol.com. dns.jomax.net. 2012042203 28800 7200 604800 3600

;; AUTHORITY SECTION:
interstream.com.	3600	IN	NS	ns44.domaincontrol.com.
interstream.com.	3600	IN	NS	ns43.domaincontrol.com.

;; Query time: 207 msec
;; SERVER: 2607:f208:302::16#53(ns44.domaincontrol.com)
;; WHEN: Mon May 21 16:18:18 2012
;; MSG SIZE  rcvd: 148

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.interstream.com aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2018
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.interstream.com.	3600	IN	CNAME	interstream.com.

;; AUTHORITY SECTION:
interstream.com.	3600	IN	SOA	ns43.domaincontrol.com. dns.jomax.net. 2012042203 28800 7200 604800 3600

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 16:18:18 2012
;; MSG SIZE  rcvd: 119

Checking other options ... succeeded as ipv6.interstream.com.
Sending...

HEAD / HTTP/1.1
Host: ipv6.interstream.com
User-Agent: ipv6-survey.pl/1.97 http://www.mrp.net/IPv6_Survey.html

Reading ...

HTTP/1.1 200 OK
Date: Mon, 21 May 2012 06:48:19 GMT
Server: Apache/2.2.15 (Fedora)
X-Powered-By: PHP/5.3.3
Set-Cookie: SESS426a3e5ca9c322dbf764bcab3a56cf04=pc5ctck7mauslmisud4solkr05; expires=Wed, 13-Jun-2012 10:21:39 GMT; path=/; domain=.ipv6.interstream.com
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Mon, 21 May 2012 06:48:19 GMT
Cache-Control: store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Connection: close
Content-Type: text/html; charset=utf-8

Accessed / [2001:470:1f0f:b9:0:0:0:16] Response: HTTP/1.1 200 OK

SMTP

MX 15 mail.interstream.com
Looking for AAAA on mail.interstream.com
MX 15 backupmail.interstream.org
Looking for AAAA on backupmail.interstream.org

DNS

Looking for AAAA of NS ns43.domaincontrol.com
Querying 2607:f208:206:0:0:0:0:16 for SOA of interstream.com over IPv6 ... successful!
Looking for AAAA of NS ns44.domaincontrol.com
Querying 2607:f208:302:0:0:0:0:16 for SOA of interstream.com over IPv6 ... successful!

NTP

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

XMPP

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

Last Updated: Mon May 21 06:48:21 2012 UTC