[Samba] Public share

[Barbara M.]

How can I have a public area with no user/pass access on a smb server that 
do NOT use security = share?
I have tried without success.
N.b.: I need win* user and Mac user can access this public share.

TIA, B.

attached my smb.conf.





----------------- smb.conf ----------------

[global]

     workgroup = SAMBA
     netbios name = smbsvr
     server string = Samba PDC - Versione %v
     socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=8192 
SO_RCVBUF=8192

     os level = 64
     preferred master = yes
     local master = yes
     domain master = yes
     security = user
     encrypt passwords = yes
     domain logons = yes
     add machine script = /usr/sbin/useradd -d /dev/null -g machines -s
/bin/false -M %u
     log file = /var/log/samba/log.%m
     log level = 2
     max log size = 50
     unix password sync = yes
     passwd program = /usr/bin/passwd %u
     passwd chat = *New*UNIX*password* %n\n *Retype*new*UNIX*password* 
%n\n
*Enter* new*UNIX*password* %n\n *Retype*new*UNIX*password* %n\n *passwd: 
*all*
authentication*tokens*updated*successfully*

     logon home = \\%L\%U\.profile
     logon path = \\%L\profiles\%U
     logon drive = H:
     logon script = netlogon.bat

[homes]

     comment = Home Directory
     browseable = no
     writeable = yes

[profiles]

     path = /home/profiles
     writeable = yes
     browseable = no
     create mask = 0600
     directory mask = 0700

[netlogon]

     path = /home/netlogon
     read only = yes
     write list = @admin
     browseable = no



[shared]
comment = Shared Folder
path = /home/Public
writable = yes
public = yes
printable = no

[pubblica]
comment = Public Shared Folder
available = yes
browseable = yes
path = /home/Public
public = yes
writable = yes
force user = nobody
force group = nobody
create mask = 777
directory mask = 777