Check that www.squ.edu.om 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 squ.edu.om soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1123
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			220134	IN	NS	b.root-servers.net.
.			220134	IN	NS	f.root-servers.net.
.			220134	IN	NS	i.root-servers.net.
.			220134	IN	NS	h.root-servers.net.
.			220134	IN	NS	d.root-servers.net.
.			220134	IN	NS	k.root-servers.net.
.			220134	IN	NS	a.root-servers.net.
.			220134	IN	NS	c.root-servers.net.
.			220134	IN	NS	g.root-servers.net.
.			220134	IN	NS	e.root-servers.net.
.			220134	IN	NS	m.root-servers.net.
.			220134	IN	NS	j.root-servers.net.
.			220134	IN	NS	l.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	89457	IN	A	198.41.0.4
a.root-servers.net.	89457	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	47721	IN	A	192.228.79.201
c.root-servers.net.	435505	IN	A	192.33.4.12
d.root-servers.net.	393854	IN	A	128.8.10.90
d.root-servers.net.	393854	IN	AAAA	2001:500:2d::d
e.root-servers.net.	45041	IN	A	192.203.230.10
f.root-servers.net.	90328	IN	A	192.5.5.241
f.root-servers.net.	395204	IN	AAAA	2001:500:2f::f
g.root-servers.net.	90992	IN	A	192.112.36.4
h.root-servers.net.	48030	IN	A	128.63.2.53
h.root-servers.net.	48030	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	89564	IN	A	192.36.148.17
i.root-servers.net.	89564	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 13:09:07 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 648
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 4

;; QUESTION SECTION:
;squ.edu.om.			IN	SOA

;; AUTHORITY SECTION:
om.			172800	IN	NS	ns1.ausregistry.net.au.
om.			172800	IN	NS	ns2.ausregistry.net.au.
om.			172800	IN	NS	ns1.registry.om.
om.			172800	IN	NS	ns2.registry.om.

;; ADDITIONAL SECTION:
ns1.registry.om.	172800	IN	A	212.72.15.101
ns1.ausregistry.net.au.	172800	IN	A	202.65.12.73
ns2.registry.om.	172800	IN	A	188.135.6.231
ns2.ausregistry.net.au.	172800	IN	A	202.65.13.73

;; Query time: 179 msec
;; SERVER: 192.228.79.201#53(b.root-servers.net)
;; WHEN: Tue May 22 13:09:07 2012
;; MSG SIZE  rcvd: 191

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1039
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 0

;; QUESTION SECTION:
;squ.edu.om.			IN	SOA

;; AUTHORITY SECTION:
squ.edu.om.		14400	IN	NS	om41.omantel.net.om.
squ.edu.om.		14400	IN	NS	om16.omantel.net.om.
squ.edu.om.		14400	IN	NS	om14.omantel.net.om.

;; Query time: 367 msec
;; SERVER: 188.135.6.231#53(ns2.registry.om)
;; WHEN: Tue May 22 13:09:08 2012
;; MSG SIZE  rcvd: 97

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1422
;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;squ.edu.om.			IN	SOA

;; ANSWER SECTION:
squ.edu.om.		86400	IN	SOA	squ.edu.om. postmaster.squ.edu.om. 2011111465 3600 3600 604800 86400

;; Query time: 178 msec
;; SERVER: 212.72.23.4#53(om14.omantel.net.om)
;; WHEN: Tue May 22 13:09:08 2012
;; MSG SIZE  rcvd: 75

HTTP

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


; <<>> DiG 9.4.1-P1 <<>> www.squ.edu.om aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1653
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.squ.edu.om.			IN	AAAA

;; Query time: 5873 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 13:10:09 2012
;; MSG SIZE  rcvd: 32

Checking other options ... failed too.

SMTP

MX 0 mail.squ.edu.om
Looking for AAAA on mail.squ.edu.om

DNS

Looking for AAAA of NS om14.omantel.net.om
No AAAA record for om14.omantel.net.om
Looking for AAAA of NS om16.omantel.net.om
No AAAA record for om16.omantel.net.om
Looking for AAAA of NS lcomantel.squ.edu.om
No AAAA record for lcomantel.squ.edu.om
Looking for AAAA of NS om41.omantel.net.om
No AAAA record for om41.omantel.net.om
Looking for AAAA of NS lcnawras.squ.edu.om
No AAAA record for lcnawras.squ.edu.om

NTP

Looking for an A record for ntp.squ.edu.om
Looking for an A record for clock.squ.edu.om
Looking for an A record for time.squ.edu.om
Looking for an A record for chime.squ.edu.om

XMPP

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

Last Updated: Tue May 22 03:40:12 2012 UTC