ProFTPd is a powerful replacement for wu-ftpd. This File Transfer Protocol daemon supports hidden directories, virtual hosts, and per-directory ".ftpaccess" files. It uses a single main configuration file, with a syntax similar to Apache. . Because of the advanced design, anonymous-FTP directories can have an arbitrary internal structure (bin, lib, etc, and special files are not needed). Advanced features such as multiple password files and upload/download ratios are also supported.