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7.8. Additional Resources
There are several aspects to firewalls and the Linux Netfilter subsystem that could not be covered in this chapter. For more information, refer to the following resources.
7.8.1. Installed Documentation
- The Reference Guide has a comprehensive chapter on
iptables, including definitions for all command options. - The
iptablesman page contains a brief summary of the various options, as well. - A list of common services and their port numbers can be found in Appendix C, Common Ports and in
/etc/services.
