vsftpd 虚拟用户文件权限

anon_umask
The value that the umask for file creation is set to for
anonymous users. NOTE! If you want to specify octal values,
remember the “0” prefix otherwise the value will be treated as
a base 10 integer!
Default: 077
local_umask
The value that the umask for file creation is set to for local
users. NOTE! If you want to specify octal values,remember the
“0” prefix otherwise the value will be treated as a base 10 integer!
Default: 077