Unable to ssh nodes with global IP

[Marko Vojinovic]

On Tuesday 25 October 2011 13:28:05 Abu Attar Musharih wrote:
> On Sat, Oct 22, 2011 at 7:12 PM, Andras Simon <szajmi at gmail.com> wrote:
> > Can you ping the machine? If yes, then are there traces in the logs
> > that show the connection attempts? (You can make iptables log those.)
> 
> Above is another important point. I can not ping the machine.
> I am wondering how they do that. What port do they close?

They filter out ICMP packets in the firewall. See

  http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol

Best, :-)
Marko