Wzdftpd:About

Introduction

wzdftpd is an FTP server designed for the following features:

open source: you are free to modify and redistribute the code (under the GPL)
portability (supported platforms include: linux, *BSD, windows 2000 and XP, and sometimes Hurd)
online administration: the server is entirely configurable using site commands
security (features): TLS/SSL, and several authentication methods, including certificates. It is also designed to run as a non-privileged user.
security (code): one of the most important things for servers !
unicode support: UTF-8 is fully supported, on all platforms
IPv6: designed for the future !
modularity: users and groups can be managed separately (MySQL or PostgreSQL, more to come), and extensions can be added
scripts: Perl and TCL scripts are supported
performance: coded with C, multithreaded
minimal dependencies: can be compiled with only the libc
respect of the standards
zeroconf support: the FTP service can be published on the network