Hello Lads, Problem could be smbldap-tools, im using 0.97. I have manually set the sid on the bdc which seems to work. I am confused because I thought net rpc getsid stored the sid from the pdc on the bdc in secrets. I wasn't aware that net getlocalsid should return identical results on both pdc & bdc. Please explain this - why isnt the BDC obtaining the sid automatic as it should from LDAP. Sorry for posting this again, but I think my last topic header people wouldnt take it seriously. I have spoken in Samba Technical about this issue already and beleive its either a bug with smbldap-tools or a miss configuration problem on my system, everything is as per the docs. If someone else has a test pdc & bdc they could try and simulate this problem again. I have a PDC & BDC / Master & Slave; I regularly make backups of the LDAP database: Slapcat -v -l backupallusers.txt. Both my PDC & BDC have been rebuilt from scratch, I slapadd -v -l backupallusers.txt and I net set localsid domainsidhere for the PDC << I get that from the backupallusers.txt. Smbpasswd -w secret < on both PDC & BDC Net rpc getsid < on the BDC; Storing domain sid in secrets¡K Now net rpc getsid gets the domain sid from the PDC. I then slapadd -v -l backupallusers.txt on the BDC. I create a new test account on the PDC and replicates to the BDC as expected. The user can login to windows workstation connected to the domain. However; if I create an account through the BDC which writes to the master ldap database this is different and user cannot login to domain ****different User SID**** Created on the PDC [root@node1 ~]# pdbedit -Lv asender WARNING: The "printer admin" option is deprecated Unix username: asender NT username: asender Account Flags: [U ] User SID: S-1-5-21-3959433150-537517574-2380176113-3000 „²-------------------------------------- Primary Group SID: S-1-5-21-3959433150-537517574-2380176113-513 „²------------------------------------ Full Name: System User Home Directory: \\192.168.0.4\asender HomeDir Drive: H: Logon Script: asender.bat Profile Path: \\192.168.0.4\profiles\asender Domain: DDESIGN Account desc: System User Workstations: Munged dial: Logon time: 0 Logoff time: Tue, 19 Jan 2038 14:14:07 EST Kickoff time: Tue, 19 Jan 2038 14:14:07 EST Password last set: Sun, 05 Feb 2006 22:42:01 EST Password can change: Sun, 05 Feb 2006 22:42:01 EST Password must change: Tue, 19 Jan 2038 14:14:07 EST Last bad password : 0 Bad password count : 0 Logon hours : FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF [root@node1 ~]# Backup Domain Controller [root@node2 sbin]# ./smbldap-useradd -m -a test20 [root@node2 sbin]# pdbedit -Lv test20 Unix username: test20 NT username: test20 Account Flags: [UX ] User SID: S-1-5-21-262279049-421990743-3931325934-3036 „²-------------------------------------- Primary Group SID: S-1-5-21-3959433150-537517574-2380176113-513 „²--------------------------------- Full Name: System User Home Directory: \\192.168.0.4\test20 HomeDir Drive: H: Logon Script: test20.bat Profile Path: \\192.168.0.4\profiles\test20 Domain: DDESIGN Account desc: System User Workstations: Munged dial: Logon time: 0 Logoff time: Tue, 19 Jan 2038 14:14:07 EST Kickoff time: Tue, 19 Jan 2038 14:14:07 EST Password last set: 0 Password can change: 0 Password must change: Tue, 19 Jan 2038 14:14:07 EST Last bad password : 0 Bad password count : 0 Logon hours : FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF [root@node2 sbin]#