Unable to ssh nodes with global IP

[Abu Attar Musharih]

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?
Thanks,
AA