Check that www.tum.de 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 tum.de soa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 715
;; flags: qr ra; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 14

;; QUESTION SECTION:
;.				IN	NS

;; ANSWER SECTION:
.			217217	IN	NS	f.root-servers.net.
.			217217	IN	NS	l.root-servers.net.
.			217217	IN	NS	c.root-servers.net.
.			217217	IN	NS	a.root-servers.net.
.			217217	IN	NS	d.root-servers.net.
.			217217	IN	NS	i.root-servers.net.
.			217217	IN	NS	j.root-servers.net.
.			217217	IN	NS	h.root-servers.net.
.			217217	IN	NS	e.root-servers.net.
.			217217	IN	NS	g.root-servers.net.
.			217217	IN	NS	m.root-servers.net.
.			217217	IN	NS	k.root-servers.net.
.			217217	IN	NS	b.root-servers.net.

;; ADDITIONAL SECTION:
a.root-servers.net.	86540	IN	A	198.41.0.4
a.root-servers.net.	86540	IN	AAAA	2001:503:ba3e::2:30
b.root-servers.net.	44804	IN	A	192.228.79.201
c.root-servers.net.	432588	IN	A	192.33.4.12
d.root-servers.net.	390937	IN	A	128.8.10.90
d.root-servers.net.	390937	IN	AAAA	2001:500:2d::d
e.root-servers.net.	42124	IN	A	192.203.230.10
f.root-servers.net.	87411	IN	A	192.5.5.241
f.root-servers.net.	392287	IN	AAAA	2001:500:2f::f
g.root-servers.net.	88075	IN	A	192.112.36.4
h.root-servers.net.	45113	IN	A	128.63.2.53
h.root-servers.net.	45113	IN	AAAA	2001:500:1::803f:235
i.root-servers.net.	86647	IN	A	192.36.148.17
i.root-servers.net.	86647	IN	AAAA	2001:7fe::53

;; Query time: 7 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 13:57:44 2012
;; MSG SIZE  rcvd: 512

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1810
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 10

;; QUESTION SECTION:
;tum.de.				IN	SOA

;; AUTHORITY SECTION:
de.			172800	IN	NS	n.de.net.
de.			172800	IN	NS	f.nic.de.
de.			172800	IN	NS	s.de.net.
de.			172800	IN	NS	z.nic.de.
de.			172800	IN	NS	l.de.net.
de.			172800	IN	NS	a.nic.de.

;; ADDITIONAL SECTION:
a.nic.de.		172800	IN	A	194.0.0.53
a.nic.de.		172800	IN	AAAA	2001:678:2::53
f.nic.de.		172800	IN	A	81.91.164.5
f.nic.de.		172800	IN	AAAA	2a02:568:0:2::53
l.de.net.		172800	IN	A	77.67.63.105
l.de.net.		172800	IN	AAAA	2001:668:1f:11::105
n.de.net.		172800	IN	A	194.146.107.6
n.de.net.		172800	IN	AAAA	2001:67c:1011:1::53
s.de.net.		172800	IN	A	195.243.137.26
z.nic.de.		172800	IN	A	194.246.96.1

;; Query time: 195 msec
;; SERVER: 192.33.4.12#53(c.root-servers.net)
;; WHEN: Tue May 22 13:57:44 2012
;; MSG SIZE  rcvd: 338

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 180
;; flags: qr; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 6

;; QUESTION SECTION:
;tum.de.				IN	SOA

;; AUTHORITY SECTION:
tum.de.			86400	IN	NS	dns3.lrz.de.
tum.de.			86400	IN	NS	dns2.lrz.de.
tum.de.			86400	IN	NS	dns1.lrz.de.

;; ADDITIONAL SECTION:
dns1.lrz.de.		86400	IN	A	129.187.19.183
dns1.lrz.de.		86400	IN	AAAA	2001:4ca0:0:100:0:53:1:1
dns2.lrz.de.		86400	IN	A	141.40.9.211
dns2.lrz.de.		86400	IN	AAAA	2001:4ca0:0:100:0:53:1:2
dns3.lrz.de.		86400	IN	A	193.136.2.123
dns3.lrz.de.		86400	IN	AAAA	2001:690:a00:3008:809::123

;; Query time: 333 msec
;; SERVER: 2a02:568:0:2::53#53(f.nic.de)
;; WHEN: Tue May 22 13:57:44 2012
;; MSG SIZE  rcvd: 217

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 105
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 6

;; QUESTION SECTION:
;tum.de.				IN	SOA

;; ANSWER SECTION:
tum.de.			86400	IN	SOA	dns1.lrz.de. hostmaster.lrz.de. 2012051419 21600 1800 3600000 86400

;; AUTHORITY SECTION:
tum.de.			86400	IN	NS	dns2.lrz.de.
tum.de.			86400	IN	NS	dns1.lrz.de.
tum.de.			86400	IN	NS	dns3.lrz.de.

;; ADDITIONAL SECTION:
dns1.lrz.de.		86400	IN	A	129.187.19.183
dns1.lrz.de.		86400	IN	AAAA	2001:4ca0:0:100:0:53:1:1
dns2.lrz.de.		86400	IN	A	141.40.9.211
dns2.lrz.de.		86400	IN	AAAA	2001:4ca0:0:100:0:53:1:2
dns3.lrz.de.		86400	IN	A	193.136.2.123
dns3.lrz.de.		86400	IN	AAAA	2001:690:a00:3008:809::123

;; Query time: 399 msec
;; SERVER: 2001:690:a00:3008:809::123#53(dns3.lrz.de)
;; WHEN: Tue May 22 13:57:45 2012
;; MSG SIZE  rcvd: 264

HTTP

Looking for CNAME of www.tum.de
Checking if there is a AAAA for www.tum.de ... FAILED.


; <<>> DiG 9.4.1-P1 <<>> www.tum.de aaaa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1305
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;www.tum.de.			IN	AAAA

;; ANSWER SECTION:
www.tum.de.		755	IN	CNAME	tum.www.ze.tu-muenchen.de.
tum.www.ze.tu-muenchen.de. 7199	IN	CNAME	tum.www.ze.tum.de.
tum.www.ze.tum.de.	7200	IN	CNAME	portal.mytum.de.

;; AUTHORITY SECTION:
mytum.de.		3600	IN	SOA	w3projns.ze.tu-muenchen.de. schmidt.ze.tum.de. 2012050901 14400 3600 3600000 3600

;; Query time: 12 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue May 22 13:57:46 2012
;; MSG SIZE  rcvd: 170

Checking other options ... failed too.

SMTP

MX 100 postrelay2.lrz.de
Looking for AAAA on postrelay2.lrz.de
Connecting to 2001:4ca0:0:103:0:25:1:2 ... done.
220 postrelay2.lrz.de ESMTP Postfix
250-postrelay2.lrz.de
250-PIPELINING
250-SIZE 31457280
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
MX 100 postrelay1.lrz.de
Looking for AAAA on postrelay1.lrz.de
Connecting to 2001:4ca0:0:103:0:25:1:1 ... done.
220 postrelay1.lrz.de ESMTP Postfix
250-postrelay1.lrz.de
250-PIPELINING
250-SIZE 31457280
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

DNS

Looking for AAAA of NS dns3.lrz.de
Querying 2001:690:a00:3008:809:0:0:123 for SOA of tum.de over IPv6 ... successful!
Looking for AAAA of NS dns1.lrz.de
Querying 2001:4ca0:0:100:0:53:1:1 for SOA of tum.de over IPv6 ... successful!
Looking for AAAA of NS dns2.lrz.de
Querying 2001:4ca0:0:100:0:53:1:2 for SOA of tum.de over IPv6 ... successful!

NTP

Looking for an A record for ntp.tum.de
Looking for an A record for clock.tum.de
Looking for an A record for time.tum.de
Looking for an A record for chime.tum.de

XMPP

Looking for a SRV record for _xmpp-client._tcp.tum.de
Found XMPP client xmpp.tum.de (0, 5222)
Trying to connect to 131.159.0.46 on 5222 ... Connection succeeded
Looking for a SRV record for _xmpp-server._tcp.tum.de
Found XMPP server xmpp.tum.de (0, 5269)
Trying to connect to 131.159.0.46 on 5269 ... Connection succeeded

Last Updated: Tue May 22 04:27:55 2012 UTC