Dear all, I've got a question concerning winbind and idmap. I've been googling for days and read through the official HOWTO but yet cannot find the answer. My situation is as follow: I have a UNIX infrastructure (including NFS) with all user information stored in LDAP for distributed passwd/group/shadow using nsswitch. I also have Windows 2003 AD (MYREALM) set up. I want to setup a samba DMS under the realm MYREALM. Everything works fine. However, I also want to allow the windows users to manipulate the ACLs of the files on the samba share. This creates a problem. If I don't use winbind, the ACEs on the files cannot contains any SIDs from the AD domain (MYREALM). If I use winbind with tdb or LDAP backend, winbind will map the SID to a new UID different from the existing UIDs for the UNIX user accounts. I want to ask how can I map SID to existing UIDs if the username is identical between the Unix world and the AD world? Any suggestions?? or Any pointers to documentation/HOWTO ? Thanks x 100000 Cheers, Jacky Hui