UltraVNC

are there any known security implications by leaving several computers with the viewer listening over the port?

No, it is not. Should it be?

We don't have any problem when we tell someone to connect to us. Connections work just fine, but when we are doing other work, these start popping up. I am relatively certain it is not a legitimate person trying to connect to us.

We have VNC SC setup with a menu for 6 different options. Each option goes to a different port with is redirected to the standard port and and appropriate internal IP address. Every option is unsecured.

This morning we started getting the following in mass

VncViewer Message Box
Connection failed ...

That's a good idea but the reason I use SC is so that my clients don't have to install anything and nothing is left when I close.

I'm reviving this thread because I also ran into this situation. It isn't too common for me but when it happens, it kinda sucks.

Is there any way to get this to work?