18.3. Using IPTables

18.3. Using IPTables

The first step in using iptables is to start the iptables service. Use the following command to start the iptables service: 

[root@myServer ~] # service iptables start

Note

The ip6tables service can be turned off if you intend to use the iptables service only. If you deactivate the ip6tables service, remember to deactivate the IPv6 network also. Never leave a network device active without the matching firewall.

To force iptables to start by default when the system is booted, use the following command: 

[root@myServer ~] # chkconfig --level 345 iptables on

This forces iptables to start whenever the system is booted into runlevel 3, 4, or 5.


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