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→Testing policies
# After you have completed the test execute the following command:
#* <code>iptables -F</code>
{{Admon/note| Interpreting iptables commands |This The command "iptables -I OUTPUT -p tcp -s0/0 -d 0/0 --dport 80 -j DROP" can be read like this: Insert a rule into the iptables OUTPUT chain that will match any tcp packet, with any a source address, any destination address, and a deistination port of 80. Any packet that matches will be dropped.
Let's break down the command to see how it works.