Alex FTPS

This projects provides a free FTP/FTPS client and class library available on any platform supporting the .Net Framework 2.0 or Mono 2.0. This currently includes: Microsoft Windows 2000 SP4/XP SP2/2003/Vista/2008, Linux, Mac OS X 10.4 and above, and, to some extent, Sun Solaris. The aim of this FTP/FTPS client is to support the advanced features provided by most Modern FTP servers, primarily, but not limited to, encryption via SSL/TLS and UTF8. A list of the implemented RFC standards and specific commands follows. The idea of this client was born while preparing some material for a technical speech session I was going to give at the Italian Microsoft TechDays - WPC 2008, about IIS 7.0 new features, including the Microsoft FTP for IIS 7.0 add in and its freshly introduced support for SSL/TLS. One of the main problems with standard FTP communications, is that all the username / password communication is performed in clear text, easily eavesdropped by sniffing the network traffic. Altough FTP is one of the oldest Internet protocols still in use today, some of its features are still largely needed as they can`t be easily replaced by, for example, an HTTP Server. The SSL/TLS encryption feature, as stated in the RFC 4217 document http://www.ietf.org/rfc/rfc4217.txt, provides a solution for this and other security related limitations. Support for SSL/TLS has been introduced in the most used FTP servers: Microsoft FTP for IIS 7.0, vsftpd, wu-ftpd, FileZilla server, to name a few. Note: vsftpd FTPS support requires version 2.1.0 or a small patch for version 2.0.7.