Hi - Having had a hardware failure in our main file server, we are currently working off a backup server. It's working perfectly. I've obtained and configured the new server, but I'm having an issue with write permissions. Our (Samba 3.4.0) PDC is running on Ubuntu 9.10. Our backup server and the new server are both Samba 3.6.3 running on Ubuntu 12.04.1 LTS. The smb.conf file is identical on the backup server and the new server, with the exception of the netbios name = directive. Users and groups have been copied over from the backup server to the new server. Everything is working fine on the backup server, but the new server will not allow files to be written to shares unless the read only = directive is turned off. Here is a portion of the smb.conf file: [global] workgroup = our_workgroup netbios name = our_fileserver encrypt passwords = true security = domain server string = Main File Server map to guest = Bad Password guest account = nobody printing = bsd . . . [Projects] path=/shares/projects comment=Project Files browseable=yes read only =yes force directory mode=775 force create mode=775 force group=projects dos filemode=yes dos filetimes=yes write list=@projects, at admin Again, this is working correctly on the backup server, but people logging on to the "Projects" share have read-only access, even though they are in the projects or admin groups. I've checked Linux permissions several times - everything is identical. I've verified that the domain has been joined correctly, everything seems fine there. Any help would be very much appreciated. Greg