Check that www.amres.ac.rs 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 amres.ac.rs soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 595
;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; AUTHORITY SECTION:
.			3600000	IN	NS	I.ROOT-SERVERS.NET.
.			3600000	IN	NS	J.ROOT-SERVERS.NET.
.			3600000	IN	NS	G.ROOT-SERVERS.NET.
.			3600000	IN	NS	K.ROOT-SERVERS.NET.
.			3600000	IN	NS	C.ROOT-SERVERS.NET.
.			3600000	IN	NS	M.ROOT-SERVERS.NET.
.			3600000	IN	NS	H.ROOT-SERVERS.NET.
.			3600000	IN	NS	B.ROOT-SERVERS.NET.
.			3600000	IN	NS	F.ROOT-SERVERS.NET.
.			3600000	IN	NS	D.ROOT-SERVERS.NET.
.			3600000	IN	NS	A.ROOT-SERVERS.NET.
.			3600000	IN	NS	E.ROOT-SERVERS.NET.
.			3600000	IN	NS	L.ROOT-SERVERS.NET.

;; ADDITIONAL SECTION:
A.ROOT-SERVERS.NET.	458229	IN	A	198.41.0.4
A.ROOT-SERVERS.NET.	458229	IN	AAAA	2001:503:ba3e::2:30
B.ROOT-SERVERS.NET.	416493	IN	A	192.228.79.201
C.ROOT-SERVERS.NET.	158887	IN	A	192.33.4.12
D.ROOT-SERVERS.NET.	155441	IN	A	128.8.10.90
D.ROOT-SERVERS.NET.	155441	IN	AAAA	2001:500:2d::d
E.ROOT-SERVERS.NET.	413813	IN	A	192.203.230.10
F.ROOT-SERVERS.NET.	459100	IN	A	192.5.5.241
F.ROOT-SERVERS.NET.	154836	IN	AAAA	2001:500:2f::f
G.ROOT-SERVERS.NET.	459764	IN	A	192.112.36.4
H.ROOT-SERVERS.NET.	416802	IN	A	128.63.2.53
H.ROOT-SERVERS.NET.	416802	IN	AAAA	2001:500:1::803f:235
I.ROOT-SERVERS.NET.	458336	IN	A	192.36.148.17
I.ROOT-SERVERS.NET.	458336	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Fri May 18 06:42:55 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 204
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 8, ADDITIONAL: 11

;; QUESTION SECTION:
;amres.ac.rs.			IN	SOA

;; AUTHORITY SECTION:
rs.			172800	IN	NS	c.nic.rs.
rs.			172800	IN	NS	f.nic.rs.
rs.			172800	IN	NS	b.nic.rs.
rs.			172800	IN	NS	g.nic.rs.
rs.			172800	IN	NS	a.nic.rs.
rs.			172800	IN	NS	k.nic.rs.
rs.			172800	IN	NS	h.nic.rs.
rs.			172800	IN	NS	d.nic.rs.

;; ADDITIONAL SECTION:
a.nic.rs.		172800	IN	A	91.199.17.59
b.nic.rs.		172800	IN	A	195.178.32.2
c.nic.rs.		172800	IN	A	212.124.160.1
d.nic.rs.		172800	IN	A	193.0.9.107
d.nic.rs.		172800	IN	AAAA	2001:67c:e0::107
f.nic.rs.		172800	IN	A	204.61.216.32
f.nic.rs.		172800	IN	AAAA	2001:500:14:6032:ad::1
g.nic.rs.		172800	IN	A	147.91.8.6
h.nic.rs.		172800	IN	A	91.199.17.60
k.nic.rs.		172800	IN	A	192.5.4.1
k.nic.rs.		172800	IN	AAAA	2001:500:2e::1

;; Query time: 134 msec
;; SERVER: 2001:503:ba3e::2:30#53(A.ROOT-SERVERS.NET)
;; WHEN: Fri May 18 06:42:55 2012
;; MSG SIZE  rcvd: 373

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 468
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 8, ADDITIONAL: 6

;; QUESTION SECTION:
;amres.ac.rs.			IN	SOA

;; AUTHORITY SECTION:
ac.rs.			10800	IN	NS	gaea.rcub.bg.ac.rs.
ac.rs.			10800	IN	NS	ns.rcub.bg.ac.rs.
ac.rs.			10800	IN	NS	ns.unic.kg.ac.rs.
ac.rs.			10800	IN	NS	ban.junis.ni.ac.rs.
ac.rs.			10800	IN	NS	odisej.telekom.rs.
ac.rs.			10800	IN	NS	ns1.uns.ac.rs.
ac.rs.			10800	IN	NS	ns.etf.bg.ac.rs.
ac.rs.			10800	IN	NS	ns2.iif.hu.

;; ADDITIONAL SECTION:
ns.etf.bg.ac.rs.	10800	IN	A	147.91.8.6
ns.rcub.bg.ac.rs.	10800	IN	A	147.91.1.5
ns.unic.kg.ac.rs.	10800	IN	A	147.91.209.2
ban.junis.ni.ac.rs.	10800	IN	A	160.99.1.1
ns1.uns.ac.rs.		10800	IN	A	147.91.173.4
gaea.rcub.bg.ac.rs.	10800	IN	A	147.91.1.7

;; Query time: 348 msec
;; SERVER: 91.199.17.60#53(h.nic.rs)
;; WHEN: Fri May 18 06:42:55 2012
;; MSG SIZE  rcvd: 317

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1876
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4

;; QUESTION SECTION:
;amres.ac.rs.			IN	SOA

;; ANSWER SECTION:
amres.ac.rs.		86400	IN	SOA	ns.rcub.bg.ac.rs. amres.afrodita.rcub.bg.ac.rs. 2012042500 10800 3600 360000 86400

;; AUTHORITY SECTION:
amres.ac.rs.		86400	IN	NS	gaea.rcub.bg.ac.rs.
amres.ac.rs.		86400	IN	NS	ns.rcub.bg.ac.rs.
amres.ac.rs.		86400	IN	NS	ban.junis.ni.ac.rs.

;; ADDITIONAL SECTION:
ns.rcub.bg.ac.rs.	86400	IN	A	147.91.1.5
ns.rcub.bg.ac.rs.	86400	IN	AAAA	2001:4170:0:1::5
gaea.rcub.bg.ac.rs.	86400	IN	A	147.91.1.7
gaea.rcub.bg.ac.rs.	86400	IN	AAAA	2001:4170:0:1::7

;; Query time: 1791 msec
;; SERVER: 2001:4170:0:1::7#53(gaea.rcub.bg.ac.rs)
;; WHEN: Fri May 18 06:42:58 2012
;; MSG SIZE  rcvd: 239

HTTP

Looking for CNAME of www.amres.ac.rs
Checking if there is a AAAA for www.amres.ac.rs ... success.
Sending...

HEAD / HTTP/1.1
Host: www.amres.ac.rs
User-Agent: ipv6-survey.pl/1.97 http://www.mrp.net/IPv6_Survey.html

Reading ...

HTTP/1.1 200 OK
Date: Thu, 17 May 2012 21:13:01 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Wed, 03 Dec 2008 12:50:08 GMT
ETag: "260197-184-e2412000"
Accept-Ranges: bytes
Content-Length: 388
Connection: close
Content-Type: text/html

Accessed / [2001:4170:0:1:0:0:0:7] Response: HTTP/1.1 200 OK

SMTP

MX 10 afrodita.rcub.bg.ac.rs
Looking for AAAA on afrodita.rcub.bg.ac.rs
Connecting to 2001:4170:0:1:0:0:0:120 ... done.
220 afrodita.rcub.bg.ac.rs ESMTP Postfix
250-afrodita.rcub.bg.ac.rs
250-PIPELINING
250-SIZE 50000000
250-ETRN
250-STARTTLS
250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

DNS

Looking for AAAA of NS gaea.rcub.bg.ac.rs
Querying 2001:4170:0:1:0:0:0:7 for SOA of amres.ac.rs over IPv6 ... successful!
Looking for AAAA of NS ban.junis.ni.ac.rs
Querying 2001:4170:2801:0:0:0:0:1 for SOA of amres.ac.rs over IPv6 ... FAILED
Looking for AAAA of NS ns.rcub.bg.ac.rs
Querying 2001:4170:0:1:0:0:0:5 for SOA of amres.ac.rs over IPv6 ... successful!

NTP

Looking for an A record for ntp.amres.ac.rs
Looking for an A record for clock.amres.ac.rs
Looking for an A record for time.amres.ac.rs
Looking for an A record for chime.amres.ac.rs

XMPP

Looking for a SRV record for _xmpp-client._tcp.amres.ac.rs
Looking for a SRV record for _xmpp-server._tcp.amres.ac.rs

Last Updated: Thu May 17 21:15:38 2012 UTC