Envoy - Visitor registration that's changing how guests are greeted in companies around the world.
Squid Proxy - Website Content Acceleration and Distribution. Thousands of web-sites around the Internet use Squid to drastically increase their content delivery. Squid can reduce your server load and improve delivery speeds to clients.
TractionGuest - Safe, secure workplace for all.
CCProxy - Want to share Internet connection? Get every computer online through a single Internet connection?
The Receptionist - The Receptionost is a visitor managemnt solution that has visitor logging system to track visitor traffic.
Apache Traffic Server - Fast, scalable and extensible HTTP/S 2 and 1.1 compliant caching proxy server.