Adding a linux server to the Domain:

If you have lots of Linux servers, and your company is running on a Windows Active Directory, you might find it binifisial to join your Linux servers to the domain and allow log-ins with you domain administrator accounts. The following tutorial will walk you though the process.

First you have to add the Centrify DirectControl Express repository:

~$sudo -s
~#aptitude install python-software-properties

For Ubuntu server 10.04 LTS

~#add-apt-repository "deb http://archive.canonical.com/ lucid partner"
For Ubuntu server 12.04

~#add-apt-repository "deb http://archive.canonical.com/ precise partner"
~#aptitude update

Now we install Centrifydc:

~#aptitude install centrifydc
~#adjoin -w -u DomainAccount Domain.name
~#adinfo

Now we need to add our domain Admin group to Sudoers

~#nano /etc/sudoers
add: %Domain Admins ALL=(ALL) ALL

Now we need to edit the centrifydc.conf file:

~#nano /etc/centrifydc/centrifydc.conf
Change the following line:

Change the line:

##pam.allow.groups: some:group

to

pam.allow.groups: Domain Admins

If you have a user on your domain that has the same name as the local admin acount on the linux server you need to edit the following:

#pam.ignore.users: some:user

to:

pam.ignore.users: local/domain account

WARNING: If you don't make this change you will lock out the local admin account

Save the file and then:

~#adreload
~#adflush
~#adquery user DomainAccount
Your all done, you should be able to log on the the Linux server with you domain admin accounts.

Awesome!