Network Connections Between a Virtual Machine, a Proxy, and a Remote System

Virtual Serial Port Connections to a Remote System Through a Proxy shows two virtual machines. Each machine uses a proxy for its connection to a remote system.

• One virtual machine acts as a virtual serial port server. This virtual machine uses the service URI to identify proxy access to the host machine. The virtual machine initiates a telnet connection with the proxy. The proxy, on behalf of the virtual machine, listens for connection requests from remote systems and forwards the requests to the virtual machine.
• One virtual machine acts as a virtual serial port client. This virtual machine uses the service URI to identify the remote system. The virtual machine initiates a telnet connection with the proxy. The proxy forwards the connection request to the remote system.

The proxy has two network sockets. It uses one socket (proxy URI) for the telnet connections with the virtual machine and the other for the connection with the remote system. The external connection between the proxy and a remote system uses the mutually agreed upon protocol. For a connection initiated by the remote system, the person operating the remote system must obtain the service URI by email or other independent communication.