Ubuntu – How to add Ubuntu to a windows domain

Well try this before installing likewise-open

Open Terminal

ping domain e.g. domain.com ping doimain controller e.g. domaincontroller.domain.com ping domain controller IP Address 192.168.X.X

For this Process I used ¨root user¨

$ sudo su

gedit /etc/hosts

Put this below the first two lines:

IPADDRESSOFDCSERVER SERVERNAME 192.168.0.1 Ubuntuserver1

gedit /etc/nsswitch.conf

look for line that says hosts and comment is out with ¨#¨ then add the following line above it:

hosts: files dns mdns4

gedit /etc/resolv.conf

comment out everything with ¨#¨ and add line below

search domain.com nameserver 192.168.X.X (IP ADDRESS OF DOMAIN CONTROLLER)

gedit /etc/dhcp3/dhclient.conf

Then add line below the ¨option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;¨

supersede domain-name ¨domain.com¨;

prepend domain-name-servers 192.168.0.2; (IP ADDRESS OF DOMAIN CONTROLLER)

Here I added the user I will be log into the machine with to a two group:

sudo visudo

under #User privilege specification: put domain user DOMAIN\username ALL=(ALL) ALL

and

under #Member of admin group may gain root privileges:

%DOMAIN\domain^users ALL=(ALL) ALL

Then Install likewise with the following:

apt-get install likewise-open likewise-open-gui

Then join the domain:

domainjoin-cli join --ou COMPUTERS DOMAIN.COM administrator

This is opitional to allow you to just type in the username without the domain:

lwconfig assumeDefaultDomain True

Then you reboot the machine:

sudo reboot

After reboot you login:

login with domain username

from terminal you now check to see if all configuration went well:

lw-get-status (to see if active Directory is there)

lw-enum-users (to see the user of active Directory)

If errors should occur like not seeing the login page:

Enable domain login on login screen

gedit /etc/lightdm/lightdm.conf

Acutally adding: greeter-hide-users=true (this hide the users so becareful with this one)

greeter-show-manual-login=true (This shows all users and login function)

To leave the domain

sudo domainjoin-cli leave

Let me know if this helps!

This also worked for me:

%domain^admins ALL=(ALL:ALL) ALL

I assume this is because of the following commands used when setting up PBIS:

sudo /opt/pbis/bin/config UserDomainPrefix $domain
sudo /opt/pbis/bin/config AssumeDefaultDomain true
sudo /opt/pbis/bin/config LoginShellTemplate /bin/bash
sudo /opt/pbis/bin/config HomeDirTemplate %H/%U

This seems to make the domain accounts appear as local accounts to the system by assuming the domain name is before the login account. Therefore the domain name is not required by the sudoers list.

Any thoughts?