How to prohibit downloading, uploading certain files and viewing them in the FTP client?

Question

FTP

By smoking mana and on the Internet, I found an option how to hide certain files in the FTP client:

<Directory ~/>
  DenyFilter      ^(\..+|file1\.conf|file2\.so)$
  HideFiles       ^(\..+|file1\.conf|file2\.so)$
</Directory>

In the client, it hides files and prevents them from being uploaded. But, if you take the full path to the file, for example

ftp://user:password( dog )site.ru/path/to/file1.conf

then this file is successfully downloaded ..
Hence the question: how to prohibit both viewing, and downloading and downloading certain files

Answer 1

www.proftpd.org/docs/modules/mod_core.html#PathDen...

For example:
# We don't want .ftpaccess or .htaccess files to be uploaded
PathDenyFilter "(\\.ftpaccess|\\.htaccess)$"

Answer 2

If it is Unix/Linux, then the easiest way is to change the file permissions so that the account under which the FTP server is running does not have the right to read them.