This guide provided by Randy Carpenter

In order to configure Drupal as described in this guide you will need a GTED access account. If you don't have one, you may request one by filling out the Signup Form

Configure the LDAP Module
• The Drupal LDAP module (http://drupal.org/project/ldap_integration) has already been installed.
• Login as an admin on your Drupal instance.
• Go to 'Administer/Modules and enable all three LDAP Authentication modules.
• Go to Administer/Site Configuration/LDAP Authentication and use use these values:
• Select Add Server
• Under "'Server Settings'", use these values:
• Name: GTED
• LDAP server: ldaps://r.gted.gatech.edu
• LDAP port: 636
• Under Login Procedure, use these values:
• Base DNs: ou=Accounts,ou=gtaccounts,ou=departments,DC=GTED,DC=GATECH,DC=EDU
• UserName attribute: uid
• Email attribute: mail
• Under Advanced Configuration, use this value:
• DN for non-anonymous search: uid=your-gtedaccess-account,ou=Local Accounts,dc=gted,dc=gatech,dc=edu
• Where "your-gtedaccess-account" is a GTED lookup service account that you have requested through OIT
• Make sure you are using HTTPS, since at that point users will be using GT credentials.

Configure the LDAP Group Module
• Select Site Configuration
• Select LDAP Groups
• Click Edit GTED
• Under Group by DN
• do nothing
• Under Group by Attribute
• Check Groups are specified by LDAP attributes (This maps LDAP attributes to Drupal Roles)
• Add gtAccountEntitlement to Attribute names field (Maps GT Account Entitlement to Drupal Role)
• Add gtPersonEntitlement to Attribute names field (Maps GT Person Entitlement to a Drupal Role)
• Under Group by entry
• do nothing
• click Update.
• Logout of local admin
• Login with a GT account in a GTED group that you want to use, then immediately log out (Drupal roles are not added until someone with that role logs in)
• Login with local admin again (now you can see the roles)
• Select Administer
• Select User Management
• Select Roles page,
• Locate the Role (group) you want
• Click edit permissions.
• Check off whatever permissions you like.
• Click Update