The most customizable FTP server for Ubuntu Server?

Question

FTP

Prompt more or less custom FTP server. Interested in such a possibility as the appointment of different folders for one user. for example: I want to share the /home/user1/folder1 and /home/user1/folder2 folders for it. Accordingly, there are still many directories in user1. in the ftpclient window, only folder1 and folder2 should be displayed. looked at examples of ftp servers, it seems that you can assign only 1 folder for the user, and all nested in user1 will also be displayed, which is not desirable

Answer 1

Эта задача решается не ftp сервером, а установкой нужного владельца и прав на папки.

Answer 2

Any ftp-server solves your problem.
You give access to a specific user in any one directory. For example, his home directory, and then bind (mount --bind) there all the necessary directories where he needs to be given access. And then everything is destroyed by the usual linux rights matrix.