Offentlig read only Samba server. Hvordan er konfig?

Hermed et eksempel:

[global]
  workgroup = WORKGROUP
  server string = samba server
  kernel oplocks = no
  printcap name = /etc/printcap
  load printers = no
  printing = cups
  log file = /var/log/samba/%m.log
  max log size = 0
  security = SHARE
  encrypt passwords = yes
  smb passwd file = /etc/samba/smbpasswd
  unix password sync = Yes
  passwd program = /usr/bin/passwd %u
  passwd chat = *New*password* %n\n *Retype*new*password* %n\n *passwd:*all*authentication*tokens*updated*successfully*

  pam password change = yes
  obey pam restrictions = yes
  socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
  local master = yes
  domain master = yes
  preferred master = yes
  wins support = yes
  guest ok = yes
  dns proxy = no

;[printers]
;        comment = All Printers
;        path = /var/spool/samba
;        browseable = no
;        public = yes
;        printable = yes

[filer]
        comment = filer
        path = /export/pc/filer
        public = yes
        only guest = yes
        writeable = no
        printable = no