Check that www.heanet.ie 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 heanet.ie soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2005
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			326625	IN	NS	f.root-servers.net.
.			326625	IN	NS	l.root-servers.net.
.			326625	IN	NS	i.root-servers.net.
.			326625	IN	NS	a.root-servers.net.
.			326625	IN	NS	g.root-servers.net.
.			326625	IN	NS	h.root-servers.net.
.			326625	IN	NS	e.root-servers.net.
.			326625	IN	NS	d.root-servers.net.
.			326625	IN	NS	b.root-servers.net.
.			326625	IN	NS	m.root-servers.net.
.			326625	IN	NS	k.root-servers.net.
.			326625	IN	NS	j.root-servers.net.
.			326625	IN	NS	c.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	195948	IN	A	198.41.0.4
a.root-servers.net.	195948	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	154212	IN	A	192.228.79.201
c.root-servers.net.	541996	IN	A	192.33.4.12
d.root-servers.net.	500345	IN	A	128.8.10.90
d.root-servers.net.	500345	IN	AAAA	2001:500:2d::d
e.root-servers.net.	151532	IN	A	192.203.230.10
f.root-servers.net.	196819	IN	A	192.5.5.241
f.root-servers.net.	501695	IN	AAAA	2001:500:2f::f
g.root-servers.net.	197483	IN	A	192.112.36.4
h.root-servers.net.	154521	IN	A	128.63.2.53
h.root-servers.net.	154521	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	196055	IN	A	192.36.148.17
i.root-servers.net.	196055	IN	AAAA	2001:7fe::53

;; Query time: 18 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon May 21 07:34:16 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 586
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 8, ADDITIONAL: 10

;; QUESTION SECTION:
;heanet.ie.			IN	SOA

;; AUTHORITY SECTION:
ie.			172800	IN	NS	gns1.domainregistry.ie.
ie.			172800	IN	NS	d.iedr.ie.
ie.			172800	IN	NS	ns3.ns.esat.net.
ie.			172800	IN	NS	c.iedr.ie.
ie.			172800	IN	NS	b.iedr.ie.
ie.			172800	IN	NS	banba.domainregistry.ie.
ie.			172800	IN	NS	ns-ie.nic.fr.
ie.			172800	IN	NS	gns2.domainregistry.ie.

;; ADDITIONAL SECTION:
b.iedr.ie.		172800	IN	A	77.72.72.34
b.iedr.ie.		172800	IN	AAAA	2a01:4b0::2
c.iedr.ie.		172800	IN	A	194.146.106.98
d.iedr.ie.		172800	IN	A	77.72.229.245
ns3.ns.esat.net.	172800	IN	A	192.111.39.100
ns3.ns.esat.net.	172800	IN	AAAA	2001:7c8:2:a::64
gns1.domainregistry.ie.	172800	IN	A	198.133.199.102
gns2.domainregistry.ie.	172800	IN	A	198.133.199.103
banba.domainregistry.ie. 172800	IN	A	193.1.142.2
ns-ie.nic.fr.		172800	IN	A	192.93.0.4

;; Query time: 133 msec
;; SERVER: 2001:503:ba3e::2:30#53(a.root-servers.net)
;; WHEN: Mon May 21 07:34:16 2012
;; MSG SIZE  rcvd: 392

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1644
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 5

;; QUESTION SECTION:
;heanet.ie.			IN	SOA

;; AUTHORITY SECTION:
heanet.ie.		172800	IN	NS	ns2.kerna.ie.
heanet.ie.		172800	IN	NS	auth-ns2.heanet.ie.
heanet.ie.		172800	IN	NS	ns.heanet.ie.

;; ADDITIONAL SECTION:
ns.heanet.ie.		172800	IN	A	193.1.193.194
ns.heanet.ie.		172800	IN	AAAA	2001:770:18:4::c101:c1c2
ns2.kerna.ie.		172800	IN	A	194.106.143.66
auth-ns2.heanet.ie.	172800	IN	A	193.1.247.198
auth-ns2.heanet.ie.	172800	IN	AAAA	2001:770:1c:4::c101:f7c6

;; Query time: 1733 msec
;; SERVER: 193.1.142.2#53(banba.domainregistry.ie)
;; WHEN: Mon May 21 07:34:19 2012
;; MSG SIZE  rcvd: 195

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 275
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4

;; QUESTION SECTION:
;heanet.ie.			IN	SOA

;; ANSWER SECTION:
heanet.ie.		3600	IN	SOA	ns.heanet.ie. hostmaster.heanet.ie. 2012051800 7200 3600 2419200 3600

;; AUTHORITY SECTION:
heanet.ie.		3600	IN	NS	ns.heanet.ie.
heanet.ie.		3600	IN	NS	auth-ns2.heanet.ie.
heanet.ie.		3600	IN	NS	ns2.kerna.ie.

;; ADDITIONAL SECTION:
ns.heanet.ie.		3600	IN	A	193.1.193.194
ns.heanet.ie.		3600	IN	AAAA	2001:770:18:4::c101:c1c2
auth-ns2.heanet.ie.	3600	IN	A	193.1.247.198
auth-ns2.heanet.ie.	3600	IN	AAAA	2001:770:1c:4::c101:f7c6

;; Query time: 909 msec
;; SERVER: 194.106.143.66#53(ns2.kerna.ie)
;; WHEN: Mon May 21 07:34:20 2012
;; MSG SIZE  rcvd: 226

HTTP

Looking for CNAME of www.heanet.ie
Checking if there is a AAAA for www.heanet.ie ... success.
Sending...

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

Reading ...

HTTP/1.1 200 OK
Date: Sun, 20 May 2012 22:04:22 GMT
Server: Apache
X-Powered-By: PHP/5.2.4-2ubuntu5.23
Set-Cookie: SESS1bc64e95793154fafe3d946a6d766d4d=368d4e5056c9e9d1da875675b051170c; expires=Wed, 13 Jun 2012 01:37:42 GMT; path=/; domain=.heanet.ie
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Sun, 20 May 2012 22:04:22 GMT
Cache-Control: store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Content-Type: text/html; charset=utf-8

Accessed / [2001:770:18:2:0:0:c101:db6c] Response: HTTP/1.1 200 OK

SMTP

MX 120 mail.heanet.ie
Looking for AAAA on mail.heanet.ie
Connecting to 2001:770:18:2:0:0:0:90 ... done.
220 saratoga.heanet.ie ESMTP Exim 4.69 Sun, 20 May 2012 23:04:28 +0100
250-saratoga.heanet.ie Hello suzuka.mrp.net [2001:44b8:60::2]
250-SIZE 52428800
250-PIPELINING
250-STARTTLS
250 HELP

DNS

Looking for AAAA of NS ns.heanet.ie
Querying 2001:770:18:4:0:0:c101:c1c2 for SOA of heanet.ie over IPv6 ... successful!
Looking for AAAA of NS ns2.kerna.ie
No AAAA record for ns2.kerna.ie
Looking for AAAA of NS auth-ns2.heanet.ie
Querying 2001:770:1c:4:0:0:c101:f7c6 for SOA of heanet.ie over IPv6 ... successful!

NTP

Looking for an A record for ntp.heanet.ie
Found an A or AAAA record. Now looking for a AAAA.
ntpdate -sq ntp.heanet.ie (2001:770:18:2:0:0:c101:db74)
server 2001:770:18:2::c101:db74, stratum 1, offset 0.016132, delay 0.37817

XMPP

Looking for a SRV record for _xmpp-client._tcp.heanet.ie
Looking for a SRV record for _xmpp-server._tcp.heanet.ie

Last Updated: Sun May 20 22:04:32 2012 UTC