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'''Perform the following steps:'''
# For the remainder of this section, use your '''c7host''' machine.
# Issue the following command to list the existing iptables policy rules: <b><code><span style="pointer-events: none;cursor: default;color:#3366CC;font-size:1.2em;">iptables -L</span></code></b>.
# Were there already iptables policy rules that already existed by default?
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'''Perform the following steps:'''
# xSet the default policy for the INPUT chain to DROP by issuing the command:#: <b><code><span style="color:#3366CC;font-size:1.2em;">iptables -P INPUT DROP</span></code></b># Now try on your own to change the default policies for the OUTPUT chain to DROP# Issue the commmand <b><code><span style="color:#3366CC;font-size:1.2em;">iptables -L</span></code></b> to verify that the policies on your INPUT and OUTPUT chain are set to DROP# Open a browser and attempt to access the Internet. Were you successful?# Using the commands you have learned so far, change the policies on the INPUT and OUTPUT chains to ACCEPT# Open your browser and attempt to access the Internet again. Were you successful?# Change the policies on all of the chains to DROP
