Hello, First of all, I would like to say that this is my third attempt to make Samba working as PDC. On the very beginning I had a problem with machine account, but after group mapping and cleaning group maps, I was able to add it from command line - using smbpasswd (according to this point, I would like to ask: "machine" unix group is only allowed for machines? Am I not able to use my own like:smbmachines?). Now I am fighting with usrmgr.exe. When I connect from domain member XP station as root and choice one of the listed users, I have recived sth like this in logs and usrmgr error: [2006/05/27 15:41:29, 1] rpc_server/srv_util.c:get_domain_user_groups(298) get_domain_user_groups: primary gid of user [root] is not a Domain group ! get_domain_user_groups: You should fix it, NT doesn't like that [2006/05/27 15:41:29, 0] rpc_server/srv_util.c:get_alias_user_groups(206) get_alias_user_groups: gid of user root doesn't exist. Check your /etc/passwd and /etc/group files [2006/05/27 15:41:29, 1] rpc_server/srv_util.c:get_domain_user_groups(298) get_domain_user_groups: primary gid of user [root] is not a Domain group ! get_domain_user_groups: You should fix it, NT doesn't like that [2006/05/27 15:41:30, 1] smbd/service.c:make_connection_snum(648) tws (192.168.0.102) connect to service root initially as user root (uid=0, gid=0) (pid 4492) [2006/05/27 15:41:32, 0] rpc_server/srv_util.c:get_alias_user_groups(206) get_alias_user_groups: gid of user tomek doesn't exist. Check your /etc/passwd and /etc/group files [2006/05/27 15:42:12, 1] smbd/service.c:close_cnum(836) tws (192.168.0.102) closed connection to service root When I use command "net group", after entering root's smb password, I recive groups list(with double "Domain Admins") with "ads_connect: Transport end point is not connected" error. Command: "net groupmap list" shows me also double "Domain Admins" entries and I am not able to delete both of them, only one of them. I've tried net groupmap delete,modify with SID,ntgroupname, also net groupmap cleanup, but it doesn't work. So I think that the solution is somewhere connected with a proper defining of SID,RID or groupmaps. Thank you, This is my smb.conf(only general section): #======================= Global Settings ====================================[global] netbios name = Asterisk server string = Asterisk PDC workgroup = BB socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 security = user local master = yes domain master = yes preferred master = yes domain logons = yes nt acl support = yes time server = yes wins support = yes dns proxy = no os level = 33 logon drive logon path = \\Asterisk\profiles\%U logon script = logoon.bat lm announce = yes lm interval = 120 name resolve order = wins bcast max log size = 50 log file = /var/log/samba/%m.log debug level = 1 unix charset = ISO8859-2 dos charset = CP852 cups options = raw load printers = yes printcap name = cups available = no browseable = no directory mask = 0777 force directory mode = 0555 create mask = 0666 force create mode = 0444 printer admin = root passdb backend = tdbsam null passwords = no encrypt passwords = yes unix password sync = no hosts allow = 192.168.0. 127. interfaces = 192.168.0.5 127.0.0.1 bind interfaces only = yes username map = /etc/samba/smbusers add user script = /usr/sbin/useradd -m %u delete user script = /usr/sbin/userdel -r %u add group script = /usr/sbin/groupadd %g add machine script = /usr/sbin/useradd -n -g machines -d dev/null -s /bin/false %u