Hello all, I have started samba service on A, which is centos 3.5, This A machine is configured with LDAP authentication(http, samba, ftp). When I mount samba share in other machine B installed CentOS4.3, by issuing the following command: # mount -t smbfs -o username=phillip password=phillip //A/samba_share /tmp Go back to A console, run "ps -aeux", in the first column, I could find the LDAP user "phillip"'s UID (phillip). Umount the samba share in B: # umount /tmp Then I use machine C installed CentOS3.5 to mount A/samba_share again: # mount -t smbfs -o username=phillip password=phillip //A/samba_share /tmp When mount successfully, check machine A's "ps -aeux" again,now I could not find the LDAP user "phillip"'s UID listed in the first column. It seemed to be replaced by "root", but I can't confirm it. Is this issue really a trouble caused by client's smb version, or any reason else? Regards, Phillip