Module 7: Listing and Managing Rules Using the `iptables` Command
Lesson 1: Introduction to Rule Listing and Management - Importance of effectively listing and managing IP tables rules - Overview of common tasks like rule addition, deletion, and modification - Command-line tools for interacting with IP tables (`iptables`, `iptables-save`, `iptables-restore`)
Lesson 2: Listing Rules - Using `iptables -L` to list all rules and chains - Displaying rules in different formats: filter, nat, mangle - Viewing specific chains and their rules with `iptables -L <chain>`
Lesson 3: Displaying Rule Numbers - Listing rules with their associated rule numbers using `–line-numbers` - Understanding how rule numbers are assigned and used - Identifying specific rules for modification or deletion
Lesson 4: Adding and Deleting Rules - Using `-A` to append rules to a chain - Using `-I` to insert rules at a specific position in a chain - Using `-D` to delete rules by rule number or specification
Lesson 5: Modifying Existing Rules - Replacing rules using `-R` - Modifying rule attributes without changing the rule position
Lesson 6: Clearing and Flushing Chains - Clearing a specific chain using `-F` - Flushing all rules in a chain using `-F <chain>` - Removing all rules from all chains using `-F`
Activity: Rule Manipulation Practice - Guided practice: Adding, modifying, and deleting rules - Using the appropriate options to achieve desired outcomes - Verifying the changes using rule listing commands
Module 7 Assignment: Rule Management Scenarios - Present different network scenarios with specific rule requirements - In each scenario, describe how to achieve the desired rule configuration using `iptables` commands
Upon completing Module 7, learners will have a strong grasp of how to list, manage, and manipulate IP tables rules using the `iptables` command-line tool. They will be capable of adding, deleting, modifying, and clearing rules as needed to achieve specific firewall configurations.