Today is a great day for my server (nanofortnight.org).
basti@Woody:~$ host nanofortnight.org
host nanofortnight.org has address 81.3.21.3
basti@Woody:~$ host 81.3.21.3
3.21.3.81.in-addr.arpa domain name pointer nanofortnight.org
Seems like my provider accepted my wish for a PTR record for my IP. I'm really really happy
about this. :-)
If you don't understand all the lines above, you can have an additional look at some resources: