Kiwi Secure Tunnel 

Kiwi Secure Tunnel is a free Secure Tunnel Service for use with Kiwi Syslog Daemon (or compatible syslog daemon). It receives, compresses, and securely transports syslog messages from distributed network devices to a Kiwi Syslog Daemon.
internet security secure message transport message encryption syslog daemon unix type syslog messages tcp syslog messages network utilities

KLog 

KLog is a free, open source Win32 implementation of *nix syslog daemon to support remote logging of message from syslog-enabled unix servers, routers and other networked devices and applications.
syslog server syslog server syslog daemon

Automize 

Automate ftp transfers, ftp daemon and monitor, web downloads through proxy or secured websites, check or send email, success based chaining of tasks, and other tasks like synchronize,copy, zip, print, delete.
scheduler task scheduler automate email ftp script command schedule windows nt solaris linux unix macintosh

ClamAV For Windows 

An open source command line anti-virus scanner for Windows that is fast and powerful and can easily be integrated with server applications for use in a mail server or proxy server. It can also be used to scan individual files or folders.
antivirus anti-virus virus clamav windows security trojan e-mail

PumpKIN 

PumpKIN is an opensource, fully functional, free TFTP server and TFTP client, which implements TFTP according to RFC1350.
tftp server client tftp server tftp daemon tftp client trivial file transfer protocol

SlimFTPd 

SlimFTPd is a fully multi-threaded standards-compliant FTP server that runs as a system service on Windows 98/ME or Windows NT/2K/XP. Its virtual file system allows you to mount any local path to any virtual path on the server's file system.
ftp server demon port file share sharing protocol transfer passive resume connection