Samba 3.0.22a (with backports from up to 3.0.25) on HP-UX 11iv3 (HP CIFS Server), "security=ADS" to W2003R2 domain, winbind running with "idmap backend = rid:", and "root = DOMAIN+Administrator" in username.map. From Administrator on a domain Vista client, using Explore to map a share and then set an ACL from Properties/Security/Permissions, I choose a Windows group from the list to add to the directory ACL. The winbind GID is 12011. The correct groupname is displayed in the Explorer window, but when doing a getacl from unix, the GID is 100, or sys - the Administrator home group. So I went to /var/opt/samba/locks and deleted all of the cache files and restarted - same result. If I set the directory to a different owner, and add the same GID with a different client user, then the correct winbind GID is added to the ACL. Any idea why Administrator=root maps the sys GID to a winbind group name? Log entry and smb.conf below. Thanks, Eric Roseme [2008/05/14 09:57:02, 10] passdb/passdb.c:local_sid_to_gid(1318) local_sid_to_gid: Fall back to algorithmic mapping [2008/05/14 09:57:02, 10] passdb/passdb.c:local_sid_to_gid(1325) local_sid_to_gid: mapping: S-1-5-21-463747597-202940698-2940076759-1201 -> 100 [2008/05/14 09:57:02, 10] passdb/lookup_sid.c:sid_to_gid(1245) sid_to_gid: S-1-5-21-463747597-202940698-2940076759-1201 -> 100 [2008/05/14 09:57:02, 10] smbd/posix_acls.c:create_canon_ace_lists(1453) create_canon_ace_lists: adding dir ACL: canon_ace index 0. Type = allow SID = S-1-5-21-463747597-202940698-2940076759-1201 gid 100 (100) S MB_ACL_GROUP perms r-x [2008/05/14 09:57:02, 10] smbd/posix_acls.c:create_canon_ace_lists(1511) create_canon_ace_lists: adding file ACL: canon_ace index 0. Type = allow SID = S-1-5-21-463747597-202940698-2940076759-1201 gid 100 (100) S MB_ACL_GROUP perms r-x -------------- next part -------------- # Samba config file created using SWAT # from 16.93.45.222 (16.93.45.222) # Date: 2006/04/28 10:10:56 # Global parameters [global] workgroup = SNSLATC realm = SNSLATC.HP.COM server string = Samba Server interfaces = xx.xxx.xxx.xx bind interfaces only = Yes netbios name = SERVER14 security = ADS client schannel = No server schannel = No password server = SNSLATC-DC.SNSLATC.HP.COM log level = 10 log file = /var/opt/samba/log.%m username map = /etc/opt/samba/username.map max log size = 1000 machine password timeout = 300 local master = No wins server = xx.xxx.xxx.xx ldap ssl = no idmap uid = 10000-20000 idmap gid = 10000-20000 idmap backend = rid:SNSLATC=10000-20000 template homedir = /home/%U template shell = /usr/bin/sh winbind separator = + winbind use default domain = yes allow trusted domains = no winbind enum users = yes winbind enum groups = yes read only = No short preserve case = No dos filetime resolution = Yes # use kerberos keytab = yes [homes] comment = Home Directories valid users = %S browseable = No [tmp] comment = Temporary file space path = /tmp [sbx_interface] path = /home/sbx_interface