Check that www.illinois.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 illinois.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1866
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			256922	IN	NS	i.root-servers.net.
.			256922	IN	NS	e.root-servers.net.
.			256922	IN	NS	j.root-servers.net.
.			256922	IN	NS	b.root-servers.net.
.			256922	IN	NS	m.root-servers.net.
.			256922	IN	NS	a.root-servers.net.
.			256922	IN	NS	l.root-servers.net.
.			256922	IN	NS	g.root-servers.net.
.			256922	IN	NS	d.root-servers.net.
.			256922	IN	NS	k.root-servers.net.
.			256922	IN	NS	c.root-servers.net.
.			256922	IN	NS	f.root-servers.net.
.			256922	IN	NS	h.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	126245	IN	A	198.41.0.4
a.root-servers.net.	126245	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	84509	IN	A	192.228.79.201
c.root-servers.net.	472293	IN	A	192.33.4.12
d.root-servers.net.	430642	IN	A	128.8.10.90
d.root-servers.net.	430642	IN	AAAA	2001:500:2d::d
e.root-servers.net.	81829	IN	A	192.203.230.10
f.root-servers.net.	127116	IN	A	192.5.5.241
f.root-servers.net.	431992	IN	AAAA	2001:500:2f::f
g.root-servers.net.	127780	IN	A	192.112.36.4
h.root-servers.net.	84818	IN	A	128.63.2.53
h.root-servers.net.	84818	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	126352	IN	A	192.36.148.17
i.root-servers.net.	126352	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 02:55:59 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1688
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	f.edu-servers.net.
edu.			172800	IN	NS	d.edu-servers.net.
edu.			172800	IN	NS	g.edu-servers.net.
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	c.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
g.edu-servers.net.	172800	IN	AAAA	2001:503:cc2c::2:36
l.edu-servers.net.	172800	IN	A	192.41.162.30

;; Query time: 138 msec
;; SERVER: 2001:503:c27::2:30#53(j.root-servers.net)
;; WHEN: Tue May 22 02:55:59 2012
;; MSG SIZE  rcvd: 265

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1609
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 3

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

;; AUTHORITY SECTION:
illinois.edu.		172800	IN	NS	dns1.iu.edu.
illinois.edu.		172800	IN	NS	dns1.illinois.edu.
illinois.edu.		172800	IN	NS	dns2.illinois.edu.

;; ADDITIONAL SECTION:
dns1.iu.edu.		172800	IN	A	134.68.220.8
dns1.illinois.edu.	172800	IN	A	130.126.2.100
dns2.illinois.edu.	172800	IN	A	130.126.2.120

;; Query time: 248 msec
;; SERVER: 192.41.162.30#53(l.edu-servers.net)
;; WHEN: Tue May 22 02:55:59 2012
;; MSG SIZE  rcvd: 138

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1811
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4

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

;; ANSWER SECTION:
illinois.edu.		7200	IN	SOA	dns1.illinois.edu. hostmgr.illinois.edu. 266649759 7200 900 1209600 900

;; AUTHORITY SECTION:
illinois.edu.		7200	IN	NS	dns1.iu.edu.
illinois.edu.		7200	IN	NS	dns1.illinois.edu.
illinois.edu.		7200	IN	NS	dns2.illinois.edu.

;; ADDITIONAL SECTION:
dns1.iu.edu.		600	IN	A	134.68.220.8
dns1.iu.edu.		600	IN	AAAA	2001:18e8:3:220::10
dns1.illinois.edu.	7200	IN	A	130.126.2.100
dns2.illinois.edu.	7200	IN	A	130.126.2.120

;; Query time: 267 msec
;; SERVER: 130.126.2.120#53(dns2.illinois.edu)
;; WHEN: Tue May 22 02:56:00 2012
;; MSG SIZE  rcvd: 210

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.illinois.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1461
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0

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

;; ANSWER SECTION:
www.illinois.edu.	7199	IN	CNAME	ows-illinois.cites.uiuc.edu.

;; AUTHORITY SECTION:
cites.uiuc.edu.		900	IN	SOA	dns1.illinois.edu. hostmgr.illinois.edu. 266649391 7200 900 1209600 900

;; Query time: 5 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 02:56:01 2012
;; MSG SIZE  rcvd: 121

Checking other options ... failed too.

SMTP

MX 10 incoming-relays.illinois.edu
Looking for AAAA on incoming-relays.illinois.edu

DNS

Looking for AAAA of NS dns2.illinois.edu
No AAAA record for dns2.illinois.edu
Looking for AAAA of NS DNS1.illinois.edu
No AAAA record for DNS1.illinois.edu
Looking for AAAA of NS dns1.iu.edu
Querying 2001:18e8:3:220:0:0:0:10 for SOA of illinois.edu over IPv6 ... successful!

NTP

Looking for an A record for ntp.illinois.edu
Found an A or AAAA record. Now looking for a AAAA.
ntpdate -sq ntp.illinois.edu (2620:0:e00:4012:0:0:0:2)
server 2620:0:e00:4012::2, stratum 2, offset 0.007651, delay 0.27202

XMPP

Looking for a SRV record for _xmpp-client._tcp.illinois.edu
Looking for a SRV record for _xmpp-server._tcp.illinois.edu
Found XMPP server lyncxmpp1.illinois.edu (0, 5269)
Trying to connect to 128.174.68.38 on 5269 ... Connection succeeded

Last Updated: Mon May 21 17:26:08 2012 UTC