BetaFTPD is an ftpd replacement for Unix/Linux.
BetaFTPD is an ftpd replacement for Unix/Linux. In addition to being fast (because its single-threaded), it is very small (the executable is about 20 kB uncompressed).

Most people think multithreading automatically means extra speed. Im sorry, unless you have a multiprocessor machine, no. There are already single-threaded alternatives on the market (most notably Serv-U) for Windows, but currently none for Linux/Unix systems, and none of them are open-sourced. So I decided to write my own, and have some fun along the way. I cant remember where the size idea came from, but it could certainly be useful. you can free download BetaFTPD 0.0.8pre17 now.