Today, i've noticed:

connecting to server irc.rizon.net:6667...
Error: address "irc.rizon.net" not found
connecting to server irc.rizon.net:6667...
Error: address "irc.rizon.net" not found
connecting to server irc.rizon.net:6667...
Error: address "irc.rizon.net" not found
connecting to server irc.rizon.net:6667...
Error: address "irc.rizon.net" not found
connecting to server irc.rizon.net:6667...
Error: address "irc.rizon.net" not found
connecting to server irc.rizon.net:6667...
Error: address "irc.rizon.net" not found

Then, i've checked:

Code:
; <<>> DiG 9.6.0-P1 <<>> irc.rizon.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 11787
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;irc.rizon.net.                 IN      A
Then:

Code:
rizon.net.              85706   IN      NS      pdns0.rizon.net.
rizon.net.              85706   IN      NS      pdns1.rizon.net.
rizon.net.              85706   IN      NS      pdns2.rizon.net.
rizon.net.              85706   IN      NS      pdns3.rizon.net.
Code:
;; ANSWER SECTION:
irc.rizon.net.          120     IN      CNAME   irc.geo.rizon.net.
irc.geo.rizon.net.      3600    IN      CNAME   sa.iso.rizon.net.

;; AUTHORITY SECTION:
rizon.net.              86400   IN      SOA     pdns1.rizon.net. fiberoptic.rizon.net. 2010010329 10800 3600 604800 3600

;; Query time: 169 msec
;; SERVER: 208.100.20.83#53(208.100.20.83)
Code:
;; QUESTION SECTION:
;sa.iso.rizon.net.              IN      A

;; AUTHORITY SECTION:
rizon.net.              86400   IN      SOA     pdns1.rizon.net. fiberoptic.rizon.net. 2010010329 10800 3600 604800 3600

;; Query time: 163 msec
;; SERVER: 208.100.20.83#53(208.100.20.83)
;; WHEN: Sun Jan  3 18:09:52 2010
;; MSG SIZE  rcvd: 87
So... my suggestion: somebody, fix it! Thanks