Check that www.siu.edu 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 siu.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 966
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			173974	IN	NS	b.root-servers.net.
.			173974	IN	NS	e.root-servers.net.
.			173974	IN	NS	c.root-servers.net.
.			173974	IN	NS	d.root-servers.net.
.			173974	IN	NS	a.root-servers.net.
.			173974	IN	NS	l.root-servers.net.
.			173974	IN	NS	k.root-servers.net.
.			173974	IN	NS	g.root-servers.net.
.			173974	IN	NS	f.root-servers.net.
.			173974	IN	NS	h.root-servers.net.
.			173974	IN	NS	j.root-servers.net.
.			173974	IN	NS	m.root-servers.net.
.			173974	IN	NS	i.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	43297	IN	A	198.41.0.4
a.root-servers.net.	43297	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	1561	IN	A	192.228.79.201
c.root-servers.net.	389345	IN	A	192.33.4.12
d.root-servers.net.	347694	IN	A	128.8.10.90
d.root-servers.net.	347694	IN	AAAA	2001:500:2d::d
e.root-servers.net.	603686	IN	A	192.203.230.10
f.root-servers.net.	44168	IN	A	192.5.5.241
f.root-servers.net.	349044	IN	AAAA	2001:500:2f::f
g.root-servers.net.	44832	IN	A	192.112.36.4
h.root-servers.net.	1870	IN	A	128.63.2.53
h.root-servers.net.	1870	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	43404	IN	A	192.36.148.17
i.root-servers.net.	43404	IN	AAAA	2001:7fe::53

;; Query time: 8 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 01:58:27 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1449
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

;; QUESTION SECTION:
;siu.edu.			IN	SOA

;; AUTHORITY SECTION:
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	c.edu-servers.net.
edu.			172800	IN	NS	d.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	g.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.

;; ADDITIONAL SECTION:
a.edu-servers.net.	172800	IN	A	192.5.6.30
c.edu-servers.net.	172800	IN	A	192.26.92.30
d.edu-servers.net.	172800	IN	A	192.31.80.30
f.edu-servers.net.	172800	IN	A	192.35.51.30
g.edu-servers.net.	172800	IN	A	192.42.93.30
l.edu-servers.net.	172800	IN	A	192.41.162.30
g.edu-servers.net.	172800	IN	AAAA	2001:503:cc2c::2:36

;; Query time: 23 msec
;; SERVER: 192.203.230.10#53(e.root-servers.net)
;; WHEN: Wed May 23 01:58:27 2012
;; MSG SIZE  rcvd: 263

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1953
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;siu.edu.			IN	SOA

;; AUTHORITY SECTION:
siu.edu.		172800	IN	NS	ns1.siu.edu.
siu.edu.		172800	IN	NS	ns4.siu.edu.
siu.edu.		172800	IN	NS	ns3.siu.edu.

;; ADDITIONAL SECTION:
ns1.siu.edu.		172800	IN	A	131.230.252.1
ns4.siu.edu.		172800	IN	A	131.230.2.1
ns3.siu.edu.		172800	IN	A	131.230.24.1

;; Query time: 132 msec
;; SERVER: 2001:503:cc2c::2:36#53(g.edu-servers.net)
;; WHEN: Wed May 23 01:58:27 2012
;; MSG SIZE  rcvd: 127

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 658
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;siu.edu.			IN	SOA

;; ANSWER SECTION:
siu.edu.		3600	IN	SOA	ns1.siu.edu. network-engineering.siu.edu. 2012052200 600 300 172800 3600

;; AUTHORITY SECTION:
siu.edu.		3600	IN	NS	ns1.siu.edu.
siu.edu.		3600	IN	NS	ns4.siu.edu.
siu.edu.		3600	IN	NS	ns3.siu.edu.

;; ADDITIONAL SECTION:
ns1.siu.edu.		3600	IN	A	131.230.252.1
ns3.siu.edu.		3600	IN	A	131.230.24.1
ns4.siu.edu.		3600	IN	A	131.230.2.1

;; Query time: 767 msec
;; SERVER: 131.230.24.1#53(ns3.siu.edu)
;; WHEN: Wed May 23 01:58:29 2012
;; MSG SIZE  rcvd: 183

HTTP

Looking for CNAME of www.siu.edu
Checking if there is a AAAA for www.siu.edu ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.siu.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1815
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.siu.edu.			IN	AAAA

;; AUTHORITY SECTION:
siu.edu.		3600	IN	SOA	ns1.siu.edu. network-engineering.siu.edu. 2012052200 600 300 172800 3600

;; Query time: 4 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 01:58:30 2012
;; MSG SIZE  rcvd: 89

Checking other options ... failed too.

SMTP

MX 10 aspmx.l.google.com
Looking for AAAA on aspmx.l.google.com
MX 10 alt1.aspmx.l.google.com
Looking for AAAA on alt1.aspmx.l.google.com
MX 10 alt2.aspmx.l.google.com
Looking for AAAA on alt2.aspmx.l.google.com
MX 10 aspmx3.googlemail.com
Looking for AAAA on aspmx3.googlemail.com
MX 10 aspmx2.googlemail.com
Looking for AAAA on aspmx2.googlemail.com

DNS

Looking for AAAA of NS ns1.siu.edu
No AAAA record for ns1.siu.edu
Looking for AAAA of NS ns4.siu.edu
No AAAA record for ns4.siu.edu
Looking for AAAA of NS ns3.siu.edu
No AAAA record for ns3.siu.edu

NTP

Looking for an A record for ntp.siu.edu
Found an A or AAAA record. Now looking for a AAAA.
Cannot find a AAAA record for ntp.siu.edu
Cannot find a AAAA record for ntp.ipv6.siu.edu

XMPP

Looking for a SRV record for _xmpp-client._tcp.siu.edu
Looking for a SRV record for _xmpp-server._tcp.siu.edu

Last Updated: Tue May 22 16:28:34 2012 UTC