Am 25.10.2011 14:28, schrieb Abu Attar Musharih: > On Sat, Oct 22, 2011 at 7:12 PM, Andras Simon <sza...@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?
ping has no port nor is it TCP ping is ICMP Type 8 as log you machine does not accept this it can not be pinged so it is not sure if the ISP, some router or the machine himself does not accept ICMP this are the last two lines of all my firewalls the first does accept ping and the second reject all ports not explicitly opened iptables -A INPUT -p icmp --icmp-type 8 -j ACCEPT iptables -A INPUT -j REJECT
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