Written on July 27th, 2010
Joining Ubuntu Lucid Lynx to Active Directory
From Jaunty Jackalope version of Ubuntu and now in the lastest release (Ludid, 10.4) it’s very easy to join your Ubuntu to an Active Directory. Where I work we have a huge Active Directory to centralize users, groups, computers and resources (far more than 3000 users).
Here I go to explain how to join an Ubuntu Lucid Lynx (10.04) box to an Active Directory server:
Before all take notice that your DNS are pointing to your corporative DNS and the client system-time is synchronized with the server time. To do this just issue the next command:
sudo ntpdate domain.of.your.ad.server.com- Install the likewise open AD authentication application with the next command: sudo apt-get install likewise-open
- Register your Ubuntu system:
sudo domainjoin-cli join name.of.jour.domain.com admin-user(where name.of.your.domain.com is your domain name, and admin-user is a user account on the domain with permissions to add computers to it).
- When prompted, enter the password of your adminstrator account. A dialogue box will appear asking for your domain name, enter your AD fully qualified domain name in upper case letters, i.e YOUR.DOMAIN.COM
- Finally reboot.


One of the reasons cause I love the GNU/Linux for developing is its easy and quick setup.