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# Make a backup of the original default rules: <source lang='bash'>cp /etc/sysconfig/iptables /etc/sysconfig/iptables.original</source>
# '''Stop libvirtd ''' and '''restart iptables ''' so that you have only the minimal default rules.
# Use the ifconfig or ip address command to determine the IP ADDRESS of your external facing address (i.e. IP address beginning with 10.x.x.x).
#H Find a partner to ping your external facing IP address. Was your partner successful? (it should have worked)
# Change the '''default policy''' on the '''INPUT''' and '''FORWARD''' chains in the filter table to '''DROP'''.
# Remove the rules from the '''INPUT''' and '''FORWARD''' chains (if any) that are '''rejecting''' all traffic (we are now better protected by the ''default policy'').<br><br>We will now create a new chain in order to create rules just relating to the '''ssh''' service:<br><br>
