I'm trying to setup some samba shares in my home network on an Ubuntu 12.04 machine. Everything works fine for my user account (max) but I can not add any new user. Every time I try to add new user they can not use the shares. It's likely that the error is very basic to the concept of samba but please don't just tell me to read the docs. I've been trying that for about 2 weeks now.

I've set up the server with my user max who can mount transfer and the share max. Than I added the user simon with sudo adduser --no-create-home --disabled-login --shell /bin/false simon because the user should not be able to ssh into the machine. I did an sudo smbpasswd -a simon and set an (samba) password for simon and added an share for simon. I also added simon to transferusers to give him access to the share transfer. But simon can't connect to transfer or simons.

---- output of testparam: -------

Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
Processing section "[printers]"
Processing section "[print$]"
Processing section "[max]"
Processing section "[simons]"
Processing section "[transfer]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
        server string = %h server (Samba, Ubuntu)
        map to guest = Bad User
        obey pam restrictions = Yes
        pam password change = Yes
        passwd program = /usr/bin/passwd %u
        passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
        unix password sync = Yes
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        dns proxy = No
        usershare allow guests = Yes
        panic action = /usr/share/samba/panic-action %d
        idmap config * : backend = tdb

[printers]
        comment = All Printers
        path = /var/spool/samba
        create mask = 0700
        printable = Yes
        print ok = Yes
        browseable = No

[print$]
        comment = Printer Drivers
        path = /var/lib/samba/printers

[max]
        comment = Privater share von Max
        path = /media/Main/max
        read only = No
        create mask = 0700

[simons]
        comment = Privater share von Simon
        path = /media/Main/simon
        read only = No
        create mask = 0700

[transfer]
        comment = Transferlaufwerk
        path = /media/Main/transfer
        read only = No
        create mask = 0755

---- The files in /media/Main: ------

drwxrwxr-x 17 max   max             4096 Oct  4 19:13 max/
drwx------  5 simon max             4096 Aug  4 15:18 simon/
drwxrwxr-x  7 max   transferusers 258048 Oct  1 22:55 transfer/