Dear I am using Samba Version 2.2.3a on Red Hat 7.2. I have configured samba from binary with -winbindd and with nt acl support yes. I make samba as only file server (not bdc, not pdc) If I give the command wbinfo -u / wbinfo -g then it shows all user name of NT domain. If I connect from my winnt machine to Samba File server it show the permission and also show me the NT domain users name but not allow me to modify/add the permission in any folders though I am connect as a admin of NT. I got the following error Unable to save permission changes on test on Printserver : Access Denied And I got the error in log.fahriar_laptop as follows [2002/04/01 09:02:42, 0] lib/username,c: user_in_winbind_group_list(356) user_in_winbind_group list: winbind_lookup_name for group ntadmin failed [2002/04/01 09:02:42, 0] smbd/service,c: make_connection(248) fahriar_laptop (10.10.20.154) couldn't find service tes But I able to create folders from winnt machine on the test folders . then it set the permission as Drwxrwxr-x 3 DHKDOMAI DHKDOMAI 4096 .... Hello Waiting for your kind and quick response. Here is my smb.conf configuration # This is the main Samba configuration file. You should read the #======================= Global Settings ====================================[global] workgroup = DHKDOMAIN server string = Samba Server printer admin = @ntadmin hosts allow = 10.10.20.0/255.255.252.0 printcap name = /etc/printcap load printers = yes log file = /usr/local/samba/var/log.%m security = domain password server = DHKGPPDC PADMA KOROTOA encrypt passwords = yes socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 local master = no domain master = no preferred master = no domain logons = no winbind separator = + winbind uid = 10000-20000 winbind gid = 10000-20000 winbind enum users = yes winbind enum groups = yes template homedir = /home/winnt/%D/%U template shell = /bin/bash name resolve order = lmhosts, bcast, wins ; wins support = yes wins server = 10.10.20.100 ; wins proxy = yes #============================ Share Definitions ============================= [test] path = /var/test/share comment = Test Purpose public = yes writable = yes create mask = 0777 security mask = 0777 force security mode =0 directory security mask = 0777 force directory security mode = 0 write list = @ntadmin, root , admin@DHKDOMAIN ; nt acl support = yes Keep Smile (-: Regards, Fahriar Ahmed Deputy Manager Network Administration, Information Technology GrameenPhone Ltd. Phone: +88 02 988 29 90 Fax: +88 02 988 29 70 Web: http://www.grameenphone.com