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

[Jeff Newmiller]

On Wed, 26 Jan 2005, Peter Jay Salzman wrote:

> On Wed 26 Jan 05,  6:31 PM, tech_dev <tech_dev at wildintellect.com> said:
> > Peter Jay Salzman wrote:
> > >
> > >0. Can XP ping yahoo.com?
> >
> > yes
> 
> 
> >> 1. Can GNU/Linux ping yahoo.com?
> >
> > yes
>  
> >> 2. Can XP ping the GNU/Linux IP address?
> >
> > no
>
> >> 3. Can GNU/Linux ping the XP IP address?
> >
> > yes
> 
> Strange.
> 
> Use XP to ping Linux again, but this time, use tcpdump to verify that Linux
> even sees the icmp packets to begin with.

Assuming it doesn't, my guess would be that you have a firewall enabled
that is blocking inbound traffic (that is, traffic not in response to
requests by the Linux system).  You can confirm this with "ipchains -L" or
"iptables -L", but you'll need to investigate how those rules are enabled
so you can add a hole for tightvnc.

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