IPTables Firewall Script

IPTables Firewall Script
Save this file as /etc/sysconfig/iptables & then source it and run iptables-save to create /etc/sysconfig/iptables, which is an input file consumed by the script /etc/rc.d/init.d/iptables. which in turn makes use of the script /sbin/iptables-restore.


To configure the set of iptables rules
/etc/rc.d/init.d/iptables stop

To save the current set of iptables rules for use at next reboot
iptables-save > /etc/sysconfig/iptables

To dynamically restart iptables after modifying /etc/sysconfig/iptables:
/etc/rc.d/init.d/iptables restart

To examine the current set of rules in effect
/etc/rc.d/init.d/iptables status

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