samba客户端连进来后，新建目录设置的权限都是0775，我修改了smb.conf配置文件中的directory mask = 0777都无效，如下：
[share] path = /home/ai2/vismarty/images4detection valid users = aoi,rongxin-samba available = yes browseable = yes writable = yes public = no guest ok = no create mask = 0777 force create mode = 0777 directory mask = 0777 force directory mode = 0777 123456789101112
找了好久原因，终于再谷歌的一篇文章中找到解决办法，即如下配置：
[global] inherit permissions = yes [share] path = /home/ai2/vismarty/images4detection valid users = aoi,rongxin-samba available = yes browseable = yes writable = yes public = no guest ok = no create mask = 0777 force create mode = 0777 directory mask = 0777 force directory mode = 0777 # for windows admin permission security mask = 0777 force security mask = 0777 directory security mask = 0777 force directory security mode = 0777
12345678910111213141516171819过了一阵子，发现还是会有新建的文件不是777权限，最后这样解决的：
[global] inherit permissions = yes [share] path = /home/ai2/vismarty/images4detection valid users = aoi,rongxin-samba force users = admin available = yes browseable = yes writable = yes public = no guest ok = no 1234567891011
force users = admin 强制将登陆samba后的用户改为admin，和ubuntu的登陆用户一致，这样就不会产生权限问题。
官方说明：
force user (S)：
This specifies a UNIX user name that will be assigned as the default user for all users connecting to this service. This is useful for sharing files. You should also use it carefully as using it incorrectly can cause security problems.
