Link to home
Start Free TrialLog in
Avatar of ahTri
ahTri

asked on

VNC applet through a proxy connection

My VNC server is behind a proxy (squid) and SmoothWall firewall, I create a port forwarding for 5800 on the firewall to point to my VNC server local net IP.

the client is connected via ISP dialup to open http://private.sonacom.com.au:5800

the first page of VNC is bring up to prompt for password, but after login the applet has exception java.net.UnknownHostException: private.sonacom.com.au:5800

What am I missing ? Do I need to forward any other port for this ?
Avatar of Joel Miller
Joel Miller
Flag of United States of America image

Open up 5800-5900. You might be able to get away with less, but initial connections are opened through 5800 and the actual sessions are using ports between 5800-5900.

I suggest opening that whole range for that application.
BTW - That is what VNC (AT&T) recommends also...
Avatar of ahTri
ahTri

ASKER

I can add 10 ports but adding 100 port is quite a night mare, is there anyway to find out which port the server is open ?
Avatar of ahTri

ASKER

I add from 5800 to 5809 but no luck
cant you open a range? That is what they call for...

But this may be what you're looking for...

http://www.uk.research.att.com/vnc/faq.html#q53
ASKER CERTIFIED SOLUTION
Avatar of Joel Miller
Joel Miller
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
See jmiller47's answer and open ports 5900 and 5800 , not the range 5800-5900.

On windowz that's all you need, for linux/unix pen 58xx and 59xx or configure the server to fource the port you want.
Avatar of ahTri

ASKER

It's work now, I open 5800 and 5900