NcFTPd domain.cf file configuration
Don't forget to restart NcFTPd after modifying the domain.cf file.
This option and the a-file-owner option can be used to set the ownership and group for newly uploaded files by anonymous users. The value can be a username or ID number. This option is handy if you have an entire domain maintained by a single user.
The default group is the primary group listed for the ftp user.