Chapter 9: Netfilter and Firewalls

This chapter contains 10 sections. Click the links below to read:

1. Netfilter Frameworks

2. Netfilter Hooks

3. Connection Tracking Initialization

4. Connection Tracking Entries

5. Connection Tracking Helpers and Expectations

6. IPTables

7. Network Address Translation (NAT)

8. NAT Hook Callbacks and Connection Tracking Hook Callbacks

9. NAT Hook Callbacks

10. Quick Reference

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