Re: Can't establish connection -

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On Tue, 2010-05-25 at 05:17 -0400, Bob Goodwin wrote:
I have two f12 computers, box9 will ping box6 but box6 to box9
    reports 100% loss. When we had Firestarter there was a log that
    usually indicated where the firewall was blocking data.

    It seems to me there should be a way to determine this without
    Firestarter? How do I do that?

    [bobg@box6 ~]$ service sshd status
    openssh-daemon (pid  1522) is running...

    Pinging the numerical addresses does not help.

    Thanks.

    Bob

    -- 

       

If this applies for ssh only, you could do something like this, on box9:


IPTABLES -I INPUT -i eth0 -s ip.of.box.6 -p tcp -m tcp --dport 22 -j ACCEPT


If you need more services to be available for box9, you simply let out -m tcp and --dport 22, to get this:


IPTABLES -I INPUT -i eth0 -s ip.of.box.6 -j ACCEPT


To see all the packages from box6, you can insert the rule below:


IPTABLES -I INPUT -i eth0 -s ip.of.box.6 -m state --state NEW -j LOG --log-prefix "IPTABLES - NEW PACKETS FROM BOX6: " --log-level 6


and watch the result in /var/log/messages (with tail -f /var/log/messages)





Calin

Key fingerprint = 37B8 0DA5 9B2A 8554 FB2B 4145 5DC1 15DD A3EF E857

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