Description of problem: When integrating Samba into a Windows domain, it helps to keep consistent UID/GID's for users. That's where the idmap backend comes in... unfortunately, the RPM for Samba doesn't include the options for Active Directory-held UID/GID's or Home Directories... thereby making integration very difficult. Also, this is required for integration with Windows 2003 R2, which all new servers now come with. Version-Release number of selected component (if applicable): 3.0.10-1.4E.6 How reproducible: Always Steps to Reproduce: 1. Install Windows 2003 R2 as a Domain Controller 2. Attempt to set up Samba with "idmap backend = ad" and/or "winbind nss info = sfu" 3. Actual results: Fails with error "could not load remote backend 'ad'" in winbindd.log and/or "ignoring unknown parameter 'winbind nss info'". Expected results: It should load the backend, then retrieve the UID & GID and/or Home Directory / Profile from the AD server. Additional info: This functionality was added in the official Samba release of 3.0.20 back in August of 2005.