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The final section below teaches you to make your iptables settings permanent.
# Make a backup of the file '''/etc/sysconfig/iptables'''# Examine the file to see how rules are added.# Issue by issuing the command: <br><b><code><span style="color:#3366CC;font-size:1.2em;">iptables-save > /etc/sysconfig/iptables.bk</span></code></b> to save the rules you added with the iptables command, above.
#To make the iptables rules '''persistent''' (i.e. keeps rules when system restarts), you issue the command: <br><b><code><span style="color:#3366CC;font-size:1.2em;">iptables-save > /etc/sysconfig/iptables</span></code></b>
# Verify that the file '''/etc/sysconfig/iptables''' exists.
