Ok , now I changed server's port to 5901 and added at router port forwarding . Now I get this message from VNC test but I still can not connect with my N900 . I tried 192.168.0.100:5901 , :1 and 79.118.180.65:5901 and :1 , I also tried without ort but still no luck .

Message from VNC test :

Connection test succeeded.

VNC Server and your network are correctly configured to accept connections over the Internet.

However, please note that VNC Server appears to be behind a NAT router with IP address 79.118.180.65. If you are connecting from outside your LAN, then you will need to use this IP address.