FTP with virtual users
FTP is one of the easiest and most universal ways of transferring files between systems (although I prefer and highly recommend SCP) but it is also not easy to manage. In most cases, ftp access is granted to users with access to the system, i.e., user with actual accounts. However, if you want to provide ftp access without creating system accounts, then here's how to do it using VSFtpd and mySQL. Enjoy!