文件系统的选择

都是{global}段,分别是：

####### Authentication #######
# "security = user" is always a good idea. This will require a Unix account
# in this server for every user accessing the server. See
# /usr/share/doc/samba-doc/htmldocs/Samba3-HOWTO/ServerType.html
# in the samba-doc package for details.
; security = user

另外一段：
# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
usershare allow guests = yes
security = user
; guest ok = no
; guest account = nobody

虽然功能不同，但是两个参数一样系统如何区分？