Does the subject want to ask, "What if the vnc port is not enough?" The solution is as follows:

1. Modify the configuration file of VNC server to increase the number of available ports. Please refer to VNC server documentation or related configuration files for specific methods.

2. Check whether there are other programs occupying VNC port in the network. If so, you can try to stop these programs or change their port numbers so that VNC can use more ports.

3. If you need to connect multiple remote computers at the same time, you can try to use multiple VNC clients, each with a different port number. This can avoid the problem that multiple connections occupy the same port.

4. Using other remote computer control technologies, such as SSH(SecureShell) or RDP(RemoteDesktopProtocol), they can also provide similar remote control functions without additional ports.