Hello List, I have compiled and setup samba 2.2.3a with-acl-support on a s390 as a member in a W2K domain (security = domain, password server = ... etc.). Kernel and ext2 is patched with the bestbits acl patches, the users are in the /etc/passwd. Everything works fine: -File acls can be set and modified with the setfacl/getfacl tools as well as through the W2K security dialog. Except one: -When I try to add a new (domain account) user to the file acl through the W2K dialog box, I get the famous: create_canon_ace_lists: unable to map SID <SID> to uid or gid. I think the reason is that the name of the domain user account is like "domain/username" and the accounts on the samba box are showed in the dialog box like "sambaserver/username". I know this is a known problem. Is there some kind of workaround without using winbindd? Best Regards, Goetz