Module 27: Using the `nat` Table for NAT Rules in IP Tables
Lesson 1: Introduction to the `nat` Table - Exploring the role and significance of the `nat` table in IP tables - Overview of how the `nat` table handles Network Address Translation - Understanding the structure and components of the `nat` table
Lesson 2: NAT Chain within the `nat` Table - Understanding the NAT chain (`PREROUTING`, `POSTROUTING`, `OUTPUT`) in the `nat` table - How packets traverse the NAT chain for different stages of processing - The role of the NAT chain in applying NAT rules to packets
Lesson 3: Using the `nat` Table for Source NAT (SNAT) - Configuring Source NAT (SNAT) rules in the `nat` table - Specifying source IP addresses for translation in the `POSTROUTING` chain - Addressing scenarios where SNAT is necessary for outbound traffic
Lesson 4: Using the `nat` Table for Destination NAT (DNAT) - Configuring Destination NAT (DNAT) rules in the `nat` table - Specifying destination IP addresses and ports for redirection in the `PREROUTING` chain - Addressing scenarios where DNAT is beneficial for resource accessibility
Lesson 5: Interaction with Other IP Tables Components - Exploring the interaction between the `nat` table and other IP tables components - Understanding how NAT rules work in conjunction with filter rules - Ensuring consistency and coherence in rule processing across tables
Activity: `nat` Table Rule Configuration - Guided exercise: Configuring SNAT and DNAT rules in the `nat` table - Demonstrating the effects of NAT rules on packet flow and address translation - Testing rules to ensure proper functioning of `nat` table configurations
Module 27 Assignment: NAT Table Strategy - Develop a strategy for utilizing the `nat` table for NAT rules in a network environment - Explain how the chosen approach enhances network connectivity, security, and resource accessibility
Upon completing Module 27, learners will have a clear understanding of using the `nat` table in IP tables for NAT rule configurations. They will be proficient in configuring SNAT and DNAT rules within the `nat` table to modify source and destination IP addresses, respectively, and will be capable of using these techniques to enhance network functionality and achieve specific networking goals.