'''Examples:'''
{| <table width="4060%" aligncellpadding="left10" cellpaddingcellspacing="100"|- valignborder="top1">|<tr> <td>'''Command|'''</td><td>'''Description'''</td>|- valign="top"|</tr><tr><td>'''iptables -P INPUT DROP'''|</td><td>Set default policy to drop all incoming connections for ALL protocols, ALL communication ports, ALL IP addresses</td>|- valign="top"|</tr><tr><td>'''iptables -P OUTPUT DROP''' | </td><td>Set default policy to drop all outgoing connections for ALL protocols, ALL communication ports, ALL IP addresses</td></tr>|} </table>
