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UltraVNC iptables only port 5900 is opened, but won't work

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robert83

UltraVNC iptables only port 5900 is opened, but won't work

Post by robert83 »

Hello Everybody

I have a Linux firewall and a Nat server all set up correctly
to allow port 5900 into a computer in one of my subnets,
I have checked www.grc.com and my port 5900 is OPEN! (so it says) but UltraVNC won't work.

5800 is for http only ? I don't need it right?

nothing else is open only port 5900 , noone can ping me or do anything else (it's dropped with iptables)

can anyone tell me what else do I need to open besides port 5900 do get it working ?

Sincerely
Robert B
lenisham
40
40
Posts: 104
Joined: 2004-06-24 07:00

Re: UltraVNC iptables only port 5900 is opened, but won't wo

Post by lenisham »

First: Have you tried connecting from the inside to make sure everything is set up correctly?

Second: Have you tried running tcpdump, ethereal or snort to confirm the packets are actually making it to the computer and back?

Third: Is routing setup correctly?

Fourth: Is there available bandwidth?

If everything appears to be OK try telentting to port 5900 and you should see RFB...
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