Select the FTP server software

In Windows, Serv-U is undoubtedly the best choice.

On the Linux platform, there are many options, including wu-ftpd, proftpd, and vsftpd.

Reference the comments of a netizen:

Wu-FTP:
It is relatively old-fashioned, but there are many attacks against it, which makes it difficult to set up, but has powerful functions.
ProFTPD:
All functions of Wu-FTP and server-u can be implemented. High security.
Vsftpd:
Relatively simple FTP software.

Introduction to the software in blfs:

ProFTPD
The ProFTPD package contains a secure and highly writable able FTP daemon. This is useful for serving large file archives over a network.

Introduction to vsftpd
The vsftpd package contains a very secure and very small FTP daemon. This is useful for serving files over a network.

For me, to implement complex permission settings, select ProFTPd.