18.7. Additional Resources
18.7. Additional Resources Refer to the following sources for additional information on packet filtering with iptables . Security Guide ; Red Hat, Inc - Contains a chapter about the role of firewalls within an overall security strategy as well as strategies for constructing firewall rules. System Administrators Guide ; Red Hat, Inc - Contains a chapter about configuring firewalls using Security Level Configuration Tool . 18.7.1. Installed Documentation man iptables - Contains a description of iptables as well as a comprehensive list of targets, options, and match extensions.