DNS
Ubuntu-xx domains are handled on one of our servers called Eshu. Distant zone updates have been made possible thanks to a script Matthias made: nsset.
Every domain has its own secret key, which you will need to update its zone. If you are the LoCoTeam contact of an approved LoCoTeam, and think you should have the key of a domain, please mail admin at ubuntu-eu.org.
To update your zone record:
# nsset -k Vkz7oSvfVjSZkrzbvxsE0oETvGaOTI6947zpQbL4 -K foo.bar. -s eshu.ubuntu-eu.org -u test.foo.bar A 10.23.45.67 ^D