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I do belive you need to open 5800 and 5801 for VNC.  assuming you are using
the VNC viewer and not the java client.

5800 is the control port (ie initiates the connection)

5801 is the port for display 1
5802 is the port for display 2
and so on and so forth.

Personally I access the vnc clients on my machines from behind the firewall
using PopTop VPN and using tightVNC for enhanced compression.   works pretty
good.

Also if this box's "sole purpose" is to be a masq and or firewall box.  then
why do you need to use VNC at all.  My linux firewall/masq box is all run
and maintained using SSH.   In fact the only reason it has X on it at all is
cause I needed it to install UBERO distributed computing client on it.  but
I havn't used X windows since.

hmmmm crap I just reread the orginal post.   internal connections not
external connections.    i use the trinity firewall set (ipchains) also from
David Ranch and I have no issues connecting to the private network side.
maybe your VNC server isnt' bound to the right IP address?   and you are
trying to connect to the private IP address of the server (instead of the
public IP)

Sorry this message is kinda mashed.   that's what I get for not reading the
thread from the begining.

-J Ward

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf
Of raf
Sent: Tuesday, February 19, 2002 4:56 PM
To: [EMAIL PROTECTED]
Subject: Re: [Masq] IP Masq and VNC


/* HINT: Search archives @ http://www.indyramp.com/masq/ before posting!
/* ALSO: Don't quote this header. It makes you look lame :-) */

Mark Luxton wrote:

> I have just configured a computer to use IP Masq based on the guide
> "Linux IP Masquerade HOWTO" by David A Ranch.  This computers sole
> purpose is to give Internet access to my two other computers on the
> network.  There will be no Keyboard, Mouse, or monitor attached to
> it.  I am planning to use VNC (Virtual Network Computer) to remotely
> access it.  My problem is, with the Stronger firewall which is listed
> in the guide, it blocks my connection to it.  How do I modify the
> rc.firewall file to allow internal connections to it.
>
> Many Thanks for your help.
>
> Mark

if you're only going to have one vnc connection at a time,
open tcp/5800 to that host but only for the ip addresses
that you will be using to run vncviewer.

raf

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