ProFTPD source code
GPL-2.0 License
ProFTPD module that creates "virtual" chroots
Pure FTP server
ProFTPD module which retrieves SSH user/host keys from LDAP
ProFTPD module for handling TCP protocols for conveying proxy connection info
ProFTPD module that uses mmap(2) to map download files into memory, rather than using read/write
FTP proxy support for ProFTPD
SSH-based rsync module for ProFTPD