Migrating from Squid Web Proxy to AWS Network Firewall can be a straightforward process, but it will depend on the complexity of your existing setup and your specific requirements. Here are the general steps for migrating from Squid Web Proxy to AWS Network Firewall:
- Create an Amazon VPC and subnets: Create a new VPC and subnets in the AWS Region where you want to deploy your network firewall.
- Create an AWS Network Firewall: Create an AWS Network Firewall, and add firewall rules to the network firewall that mirror your existing Squid Web Proxy rules.
- Set up Amazon VPC route tables: Update your VPC route tables to forward traffic to the network firewall for the ports and protocols you want to inspect.
- Configure your instances: Configure your instances to use the network firewall as the default gateway, or update the security groups associated with your instances to allow traffic to flow through the network firewall.
- Test and monitor your firewall: Test the network firewall by sending traffic through it, and monitor the firewall’s performance and logs to ensure that it is working as expected.
- Move your Squid Web Proxy server off: Once you are confident that the Network firewall is working as expected, you can move your Squid Web Proxy server off and redirect traffic from your Squid Web Proxy to Network Firewall.
- Optimize your firewall rules: Based on the traffic patterns, you can optimize the firewall rules to ensure that it only allows the expected traffic and blocks the unwanted traffic.
It’s important to note that the above steps are high-level guidelines and the specific steps for migrating from Squid Web Proxy to AWS Network Firewall will depend on your existing setup and requirements. It’s also crucial to validate and test the security rules and configurations before taking your production traffic through the new firewall.
It’s also recommended to have a backup plan in case something goes wrong during the migration process and also to have a rolling upgrade strategy to minimize the impact on your production traffic.
A more detailed walkthrough can be found here https://aws.amazon.com/blogs/networking-and-content-delivery/migrating-from-squid-web-proxy-to-aws-network-firewall/
