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AWS Network Firewall: Overview and Configuration Example

AWS Network Firewall is a managed firewall service that provides scalable, stateful, and rule-based network traffic filtering for Amazon Virtual Private Cloud (Amazon VPC) environments. It allows you to define and enforce fine-grained rules to control incoming and outgoing traffic based on IP addresses, protocols, ports, and domain names. Here's a detailed overview of AWS Network Firewall along with a configuration example:

Features of AWS Network Firewall:

  1. Stateful Filtering:

  2. Rule-Based Filtering:

  3. Integration with AWS Services:

  4. Logging and Monitoring:

  5. Scalability:

  6. Rule Groups:

  7. Rule Variables:

Configuration Example:

Let's create a simple AWS Network Firewall policy and associated rule groups using the AWS Management Console:

  1. Login to AWS Console:

  2. Open AWS Network Firewall Console:

  3. Create a Firewall Policy:

  4. Define Rule Groups:

  5. Associate Rule Groups with Policy:

  6. Create a Firewall:

  7. Associate Policy with Firewall:

  8. Monitor Firewall Activity:

  9. Test Traffic Filtering:

  10. Update Rules and Policy (Optional):

  11. Delete Firewall (Optional):