Red Hat and Fedora IPtables Support

Red Hat provides support for IPtables as part of their system configuration using various scripts and configuration files (see Table 20-7). When you install the RPM package for IPtables, an iptables service script is installed that will read and save IPtables commands using the /etc/sysconfig/iptables file. If you have set IPtables to be started up automatically when you boot your system, this file will be checked to see if it exists and is not empty. If so, IPtables will automatically read the IPtables commands that it holds. This helps to integrate IPtables more smoothly into the system setup process.

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