I try to connect from a Windows XP Pro computer to a Linux computer. My Windows computer is behind a firewall and I know that most of the ports are closed. Here is what RealVNC suggests:
There are two main methods for making VNC servers accessible through firewalls:
Opening Ports - If you are using a secure version of VNC, such as VNC Enterprise Edition, you can simply configure your firewall to permit traffic on the port(s) used by the server. If your VNC server is configured to accept connections on VNC Display Number N (equivalent to Port Number 5900+N), then port 5900+N must be configured to be allowed through the firewall. To allow the Java VNC Viewer to be served through the firewall, port 5800+ must also be allowed through, or you must configure your VNC server to use the same port for both the VNC and Java Viewer connections, if possible.
Secure Tunnelling - Most organisations that operate firewalls allow connections to a number of standard ports, that are in principle used only by secure or harmless protocols. The Secure Shell (SSH) protocol, for example, acts as a wrapper around other protocols, allowing them to be used securely over the Internet, and is a protocol which most firewalls allow access through. A Secure Shell client is run on the VNC Viewer computer and is made to forward connections to a particular port on that machine to a port on the VNC Server machine. The forwarded connection is encrypted by the SSH software, which can provide both encryption and authentication.
The first one is not possible because of the corporate Firewall rules. Does anyone have any idea how to perform the second method?
Thanks in advance