Re: [vox-tech] tight-vnc, can't ping box from windows

Thu, 27 Jan 2005 22:06:43 -0800

Well -tcpdump wasn't installed and I couldn't find it in the distro (Mandrake 10.0) so I went to download/install and when I ran configure it said I didn't have a C compiler. While I installed those packages I poked more in the GUI control center and found some security settings and viola Allow icmp echo was 'No'.

So now I can ping, the next question is where is the rule I need to change to allow tightvnc through the firewall? Hopefully I'll find a simple answer as I wade through the docs tonight.

Thanks,
Alex

Peter Jay Salzman wrote: 
On Thu 27 Jan 05,  8:10 AM, Peter Jay Salzman <[EMAIL PROTECTED]> said:

Now given that, what you want to do is use XP to ping Linux.  Because you're
interested in whether Linux is seeing those packets or not, you're going to
run tcpdump on Linux.  It's going to look something like:



I forgot to finish the thought.  It's going to look like:

   tcpdump -i eth0 icmp


BTW, a question to the list.  The man page claims the expression to listen
to icmp pings should be:

   tcpdump ip proto icmp

But that gave a parse error.  By trial and error, I found this works:

   tcpdump icmp

Am I reading the man page wrongly or is the man page wrong?

Pete
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