Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Encrypted UDP based FTP with multicast
A fast, light-weight proxy for memcached and redis
A high-performance and stable proxy for MySQL
A modular IP router for Linux platforms
Proxies data from stdin/stdout/stderr and logs it in pcap files.
Passive Proxy Daemon sniffs packets and creates squid proxy logs