We are having problems getting Tight VNC to work through the ZoneAlarm pro firewall.
We have no problems with other firewall products - simply open up port 5900 for inbound packets from specific set of IP addresses on our network.
We usually lock down outbound ports as well but have not had to open up any outbound ports in order for Tight VNC to work on other firewalls.
However, with ZoneAlarm we have to open outbound ports in order for TightVNC to work - cannot specify a range of ports in ZoneAlarm pro so it is difficult to pin down which TCP port is responsible, so we end up having to open all TCP outbound ports to our network addresses which for security we do not want to do.
Any idea what is going on ?
Is there a specific port or setting that needs opening in ZoneAlarm ?
Operating System:Windows XP Pro
Product Name:ZoneAlarm Pro