Enable LDAP group based authentication in Ubuntu Server:
Open /etc/pam.d/sshd file and uncomment the following:
sudo vi /etc/pam.d/sshd account required pam_access.socelebrex buy, generic clomid
Now open /etc/security/access.conf and add required rule.
sudo vi /etc/security/access.conf # disallow all except people in the following group and root -:ALL EXCEPT root home.netspective.com:ALL EXCEPT LOCAL
Where home.netspective.com is the ldap group.