I am running an Ubuntu 9.04 machine with kernel 2.6.28-16-server, Samba v3.3.2 that uses winbind for authentication of users. My log files are littered with messages like these every time a user remotely mounts their home directory: Apr 5 07:12:40 csfile smbd[15517]: pam_unix(samba:session): session opened for user STLAWU\akwood06 by (uid=0) Apr 5 07:12:40 csfile winbindd[3549]: [2010/04/05 07:12:40, 0] winbindd/idmap.c:smb_register_idmap(149) Apr 5 07:12:40 csfile winbindd[3549]: Idmap module rid already registered! Apr 5 07:12:40 csfile winbindd[3549]: [2010/04/05 07:12:40, 0] lib/module.c:do_smb_load_module(69) Apr 5 07:12:40 csfile winbindd[3549]: Module '/usr/lib/samba/idmap/rid.so' initialization failed: NT_STATUS_OBJECT_NAME_COLLISION Apr 5 07:12:40 csfile winbindd[3549]: [2010/04/05 07:12:40, 0] winbindd/idmap.c:smb_register_idmap(149) Apr 5 07:12:40 csfile winbindd[3549]: Idmap module rid already registered! Apr 5 07:12:40 csfile winbindd[3549]: [2010/04/05 07:12:40, 0] lib/module.c:do_smb_load_module(69) Apr 5 07:12:40 csfile winbindd[3549]: Module '/usr/lib/samba/idmap/rid.so' initialization failed: NT_STATUS_OBJECT_NAME_COLLISION Everything seems to work on the user end but I don't completely know what I'm doing and I'm afraid I've misconfigured something. I've included my smb.conf file below. Any help is appreciated. Thank you, Rich smb.conf: [global] workgroup = STLAWU server string = %h netbios name = %h security = ads realm = STLAWU.LOCAL encrypt passwords = true obey pam restrictions = yes client use spnego = yes log file = /var/log/samba/%U.log max log size = 500 #log level = 4 socket options = TCP_NODELAY SO_RCVBUF=16348 SO_SNDBUF=16348 local master = no domain master = no preferred master = no dns proxy = no load printers = no printcap name = /dev/null disable spoolss = yes printing = bsd show add printer wizard = no template homedir = /home/stlawu/%u template shell = /bin/bash veto files = /.kde/.bash_history/.bash_logout/.bash_profile/.bashrc/.emacs/.gtkrc/.zshrc/.ssh/ veto oplock files = /*.xls/*.xlt/ winbind use default domain = yes winbind enum users = yes winbind enum groups = yes winbind nested groups = yes idmap backend = rid:STLAWU=10000-1000000 idmap uid = 10000-1000000 idmap gid = 10000-1000000 allow trusted domains = no store dos attributes = yes unix extensions = yes [homes] comment = Home Directories browseable = yes writable = yes create mask = 0700 force create mode = 0700 directory mask = 0700 force directory mode = 0700 inherit acls = yes full_audit: syslog = 0 full_audit: log level = 0 vfs:10 #end smb.conf