EchoVNC is a secure tunneling utility for VNC users. With EchoVNC
on both sides of a connection, two VNC users can take remote control of
each other's computers regardless of firewall or router configuration.
VNC becomes "firewall friendly" -- no more port-forwarding!

With echoWare, any peer-to-peer or client-server Internet application can interconnect via a 3rd-party relay server, making all data traffic appear to be "outgoing" to any client-side firewalls or routers. Via the OpenSSL library, connections between the two applications can have their data content secured with a Diffie-Hellman key-exchange and 128-bit AES encryption. The relay-server supported by echoWare clients is a shareware application called "echoServer" -- together with EchoVNC, it provides an overall remote-access solution that is "firewall-friendly", highly secure, and extremely low cost.