Check that www.uiowa.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 uiowa.edu soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1091
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			170540	IN	NS	j.root-servers.net.
.			170540	IN	NS	b.root-servers.net.
.			170540	IN	NS	a.root-servers.net.
.			170540	IN	NS	i.root-servers.net.
.			170540	IN	NS	f.root-servers.net.
.			170540	IN	NS	d.root-servers.net.
.			170540	IN	NS	m.root-servers.net.
.			170540	IN	NS	l.root-servers.net.
.			170540	IN	NS	c.root-servers.net.
.			170540	IN	NS	h.root-servers.net.
.			170540	IN	NS	g.root-servers.net.
.			170540	IN	NS	e.root-servers.net.
.			170540	IN	NS	k.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	39863	IN	A	198.41.0.4
a.root-servers.net.	39863	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	516528	IN	A	192.228.79.201
c.root-servers.net.	385911	IN	A	192.33.4.12
d.root-servers.net.	344260	IN	A	128.8.10.90
d.root-servers.net.	344260	IN	AAAA	2001:500:2d::d
e.root-servers.net.	516528	IN	A	192.203.230.10
f.root-servers.net.	40734	IN	A	192.5.5.241
f.root-servers.net.	345610	IN	AAAA	2001:500:2f::f
g.root-servers.net.	41398	IN	A	192.112.36.4
h.root-servers.net.	603249	IN	A	128.63.2.53
h.root-servers.net.	603249	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	39970	IN	A	192.36.148.17
i.root-servers.net.	39970	IN	AAAA	2001:7fe::53

;; Query time: 69 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 02:55:41 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 537
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 7

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

;; AUTHORITY SECTION:
edu.			172800	IN	NS	g.edu-servers.net.
edu.			172800	IN	NS	a.edu-servers.net.
edu.			172800	IN	NS	d.edu-servers.net.
edu.			172800	IN	NS	l.edu-servers.net.
edu.			172800	IN	NS	f.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
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: 249 msec
;; SERVER: 2001:500:2d::d#53(d.root-servers.net)
;; WHEN: Wed May 23 02:55:42 2012
;; MSG SIZE  rcvd: 262

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 455
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 8

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

;; AUTHORITY SECTION:
uiowa.edu.		172800	IN	NS	dns2.uiowa.edu.
uiowa.edu.		172800	IN	NS	dns3.uiowa.edu.
uiowa.edu.		172800	IN	NS	dns1.uiowa.edu.
uiowa.edu.		172800	IN	NS	sns-pb.isc.org.

;; ADDITIONAL SECTION:
dns2.uiowa.edu.		172800	IN	A	128.255.64.11
dns2.uiowa.edu.		172800	IN	AAAA	2620:0:e50:2::2
dns3.uiowa.edu.		172800	IN	A	128.255.1.8
dns3.uiowa.edu.		172800	IN	A	128.255.64.5
dns3.uiowa.edu.		172800	IN	AAAA	2620:0:e50:2::3
dns1.uiowa.edu.		172800	IN	A	128.255.1.3
dns1.uiowa.edu.		172800	IN	A	128.255.64.3
dns1.uiowa.edu.		172800	IN	AAAA	2620:0:e50:2::1

;; Query time: 248 msec
;; SERVER: 192.41.162.30#53(l.edu-servers.net)
;; WHEN: Wed May 23 02:55:42 2012
;; MSG SIZE  rcvd: 276

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1934
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

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

;; ANSWER SECTION:
uiowa.edu.		86400	IN	SOA	dns0.uiowa.edu. hostmaster.uiowa.edu. 201205221 7200 3600 3600000 21600

;; Query time: 246 msec
;; SERVER: 2620:0:e50:2::1#53(dns1.uiowa.edu)
;; WHEN: Wed May 23 02:55:43 2012
;; MSG SIZE  rcvd: 79

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.uiowa.edu aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1537
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

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

;; AUTHORITY SECTION:
uiowa.edu.		10799	IN	SOA	dns0.uiowa.edu. hostmaster.uiowa.edu. 201205221 7200 3600 3600000 21600

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 02:55:44 2012
;; MSG SIZE  rcvd: 83

Checking other options ... failed too.

SMTP

MX 10 sun.its.uiowa.edu
Looking for AAAA on sun.its.uiowa.edu
MX 10 moon.its.uiowa.edu
Looking for AAAA on moon.its.uiowa.edu
MX 10 star.its.uiowa.edu
Looking for AAAA on star.its.uiowa.edu

DNS

Looking for AAAA of NS dns3.uiowa.edu
Querying 2620:0:e50:2:0:0:0:3 for SOA of uiowa.edu over IPv6 ... successful!
Looking for AAAA of NS sns-pb.isc.org
Querying 2001:500:2e:0:0:0:0:1 for SOA of uiowa.edu over IPv6 ... successful!
Looking for AAAA of NS dns1.uiowa.edu
Querying 2620:0:e50:2:0:0:0:1 for SOA of uiowa.edu over IPv6 ... successful!
Looking for AAAA of NS dns2.uiowa.edu
Querying 2620:0:e50:2:0:0:0:2 for SOA of uiowa.edu over IPv6 ... successful!

NTP

Looking for an A record for ntp.uiowa.edu
Found an A or AAAA record. Now looking for a AAAA.
ntpdate -sq ntp.uiowa.edu (2620:0:e50:2000:0:0:0:4)
server 2620:0:e50:2000::4, stratum 3, offset 0.003601, delay 0.27148

XMPP

Looking for a SRV record for _xmpp-client._tcp.uiowa.edu
Looking for a SRV record for _xmpp-server._tcp.uiowa.edu
Found XMPP server xmpp.uiowa.edu (0, 5269)
Trying to connect to 128.255.41.65 on 5269 ... Connection succeeded

Last Updated: Tue May 22 17:25:50 2012 UTC