smba 权限的问题

[zhshuming]

请问，如果我想达到这种共享权限的目的应该怎么设：一个共享目录，guest ok = yes
同时可以让一个XYZ用户登陆，XYZ可写，但是guest 却不能写，只能读。
我发现用writable 参数只能控制全局的可写权限。当然，如果建二个共享名，但却指向同一个共享目录
这个问题可以解决，但是我想应该会有其它办法吧？请教。

以下是我的smb.conf 文件配置

[global]
server string = %h server (Samba, Ubuntu)
interfaces = 127.0.0.0/8, eth0
obey pam restrictions = Yes
passdb backend = tdbsam
passwd program = /usr/bin/passwd %u
passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n *password\supdated\ssuccessfully* .
username map = /etc/samba/smbusers
syslog = 0
log file = /var/log/samba/log.%m
max log size = 0
dns proxy = No
panic action = /usr/share/samba/panic-action %d
invalid users = root

[share]
comment = Home Directories
path = /home/zngell/share
valid users = xyz
read only = No
create mask = 0770
directory mask = 0770
guest ok = Yes

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

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

[zhudachang]

用 write list ，控制组权限。

代码： 全选

[share]
path = /home/zngell/share
valid users = @user， guest
write list = @user

@user 表示拥有写权限的组， xyz可以放到里面