Year: 2006
Description:
This document was written purely so people can start to grasp the wonderful world of iptables. It was never meant to contain information on specific security bugs in iptables or Netfilter. If you find peculiar bugs or behaviors in iptables or any of the subcomponents, you should contact the Netfilter mailing lists and tell them about the problem and they can tell you if this is a real bug or if it has already been fixed. There are very rarely actual security related bugs found in iptables or Netfilter, however, one or two do slip by once in a while. These are properly shown on the front page of the Netfilter main page, and that is where you should go to get information on such topics.
Contents:
- 1. Introduction
- 2. TCP/IP repetition
- 3. IP filtering introduction
- 4. Network Address Translation Introduction
- 5. Preparations
- 6. Traversing of tables and chains
- 7. The state machine
- 8. Saving and restoring large rule-sets
- 9. How a rule is built
- 10. Iptables matches
- 11. Iptables targets and jumps
- 12. Debugging your scripts
- 13. rc.firewall file
- 14. Example scripts
- 15. Graphical User Interfaces for Iptables/netfilter
- A. Detailed explanations of special commands
- B. Common problems and questions
- C. ICMP types
- D. TCP options
- E. Other resources and links
- F. Acknowledgments
- G. History
- H. GNU Free Documentation License
- I. GNU General Public License
- J. Example scripts code-base
Downloads:


Licence
Copyright (C) 2000-2006 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.