Check that www.ut.ac.ir 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 ut.ac.ir soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1970
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			130133	IN	NS	k.root-servers.net.
.			130133	IN	NS	e.root-servers.net.
.			130133	IN	NS	g.root-servers.net.
.			130133	IN	NS	i.root-servers.net.
.			130133	IN	NS	h.root-servers.net.
.			130133	IN	NS	f.root-servers.net.
.			130133	IN	NS	d.root-servers.net.
.			130133	IN	NS	l.root-servers.net.
.			130133	IN	NS	m.root-servers.net.
.			130133	IN	NS	c.root-servers.net.
.			130133	IN	NS	b.root-servers.net.
.			130133	IN	NS	j.root-servers.net.
.			130133	IN	NS	a.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	604259	IN	A	198.41.0.4
a.root-servers.net.	604259	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	476121	IN	A	192.228.79.201
c.root-servers.net.	345504	IN	A	192.33.4.12
d.root-servers.net.	303853	IN	A	128.8.10.90
d.root-servers.net.	303853	IN	AAAA	2001:500:2d::d
e.root-servers.net.	476121	IN	A	192.203.230.10
f.root-servers.net.	327	IN	A	192.5.5.241
f.root-servers.net.	305203	IN	AAAA	2001:500:2f::f
g.root-servers.net.	991	IN	A	192.112.36.4
h.root-servers.net.	562842	IN	A	128.63.2.53
h.root-servers.net.	562842	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	604367	IN	A	192.36.148.17
i.root-servers.net.	604367	IN	AAAA	2001:7fe::53

;; Query time: 35 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 14:09:08 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1048
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 4

;; QUESTION SECTION:
;ut.ac.ir.			IN	SOA

;; AUTHORITY SECTION:
ir.			172800	IN	NS	ns1.nic.ir.
ir.			172800	IN	NS	ns5.univie.ac.at.
ir.			172800	IN	NS	auth02.ns.uu.net.

;; ADDITIONAL SECTION:
ns1.nic.ir.		172800	IN	A	194.225.70.83
ns5.univie.ac.at.	172800	IN	A	193.171.255.77
ns5.univie.ac.at.	172800	IN	AAAA	2001:628:453:4305::53
auth02.ns.uu.net.	172800	IN	A	198.6.1.82

;; Query time: 135 msec
;; SERVER: 2001:503:c27::2:30#53(j.root-servers.net)
;; WHEN: Wed May 23 14:09:08 2012
;; MSG SIZE  rcvd: 184

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 864
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 1

;; QUESTION SECTION:
;ut.ac.ir.			IN	SOA

;; AUTHORITY SECTION:
ac.ir.			14400	IN	NS	a.nic.ir.
ac.ir.			14400	IN	NS	auth51.ns.uu.net.
ac.ir.			14400	IN	NS	ns5.univie.ac.at.

;; ADDITIONAL SECTION:
a.nic.ir.		14400	IN	A	193.189.123.2

;; Query time: 246 msec
;; SERVER: 198.6.1.82#53(auth02.ns.uu.net)
;; WHEN: Wed May 23 14:09:08 2012
;; MSG SIZE  rcvd: 122

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1455
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;ut.ac.ir.			IN	SOA

;; AUTHORITY SECTION:
ut.ac.ir.		14400	IN	NS	utsrvns2.ut.ac.ir.
ut.ac.ir.		14400	IN	NS	utsrvns1.ut.ac.ir.

;; ADDITIONAL SECTION:
utsrvns1.ut.ac.ir.	14400	IN	A	80.66.177.23
utsrvns2.ut.ac.ir.	14400	IN	A	80.66.177.22

;; Query time: 1072 msec
;; SERVER: 2001:628:453:4305::53#53(ns5.univie.ac.at)
;; WHEN: Wed May 23 14:09:10 2012
;; MSG SIZE  rcvd: 104

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1631
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;ut.ac.ir.			IN	SOA

;; ANSWER SECTION:
ut.ac.ir.		86400	IN	SOA	utsrvns2.ut.ac.ir. root.ut.ac.ir. 2006050401 3600 7000 2400000 7200

;; AUTHORITY SECTION:
ut.ac.ir.		86400	IN	NS	utsrvns1.ut.ac.ir.
ut.ac.ir.		86400	IN	NS	utsrvns2.ut.ac.ir.

;; ADDITIONAL SECTION:
utsrvns1.ut.ac.ir.	86400	IN	A	80.66.177.23
utsrvns2.ut.ac.ir.	86400	IN	A	80.66.177.22

;; Query time: 483 msec
;; SERVER: 80.66.177.23#53(utsrvns1.ut.ac.ir)
;; WHEN: Wed May 23 14:09:11 2012
;; MSG SIZE  rcvd: 145

HTTP

Looking for CNAME of www.ut.ac.ir
Checking if there is a AAAA for www.ut.ac.ir ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.ut.ac.ir aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1751
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.ut.ac.ir.			IN	AAAA

;; AUTHORITY SECTION:
ut.ac.ir.		7200	IN	SOA	utsrvns2.ut.ac.ir. root.ut.ac.ir. 2006050401 3600 7000 2400000 7200

;; Query time: 6 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed May 23 14:09:13 2012
;; MSG SIZE  rcvd: 80

Checking other options ... failed too.

SMTP

MX 10 utservm.ut.ac.ir
Looking for AAAA on utservm.ut.ac.ir

DNS

Looking for AAAA of NS utsrvns2.ut.ac.ir
No AAAA record for utsrvns2.ut.ac.ir
Looking for AAAA of NS utsrvns1.ut.ac.ir
No AAAA record for utsrvns1.ut.ac.ir

NTP

Looking for an A record for ntp.ut.ac.ir
Looking for an A record for clock.ut.ac.ir
Looking for an A record for time.ut.ac.ir
Looking for an A record for chime.ut.ac.ir

XMPP

Looking for a SRV record for _xmpp-client._tcp.ut.ac.ir
Looking for a SRV record for _xmpp-server._tcp.ut.ac.ir

Last Updated: Wed May 23 04:39:20 2012 UTC