NcFTPd general.cf file configuration
Don't forget to restart NcFTPd after modifying the general.cf file.
If you use the on-the-fly TAR feature, which allows a user to download a whole directory tree at a time, you probably want to disallow users from TARring directories in the root directory. Doing a TAR on /pub could result in an extremely large amount of data and stressful to your server.
You can also restrict other directories from being TARred by creating a file called .notar in directories you want to restrict.