Networking

Network Security at all levels

In this, the second of a multi-part series on securing your workloads, I’ll look more broadly and why, where, and how, you should be securing your network. I’ll look at both the principles and AWS services that help you reduce the risk of network based breaches. The introduction to the Security at all levels gives an overview of what I believe security in depth means and why we should all follow the principles.

Posted by Robin Ford on Saturday, July 19, 2025

Troubleshooting with VPC Flow Logs

How to understand VPC Flow Logs and use them to troubleshoot connectivity in AWS.

So you built and secured your VPC. But solutions are not working? How to understand VPC Flow Logs and use them to troubleshoot connectivity in AWS.

Posted by Robin Ford on Thursday, January 5, 2023

How to use NACLs and Security Groups

Where and how should you use NACLs and Security Groups to ensure you have a secure network on AWS.

Practical guide to implementing layered network security using NACLs and Security Groups in multi-tier VPC architectures and production environments.

Posted by Robin Ford on Tuesday, December 6, 2022

Network Access Control Lists vs Security Groups

What are NACLs and Security Groups? What are the differences? How do they work?

Technical comparison of Network ACLs and Security Groups - understanding stateful vs stateless processing, rule evaluation, and when to use each.

Posted by Robin Ford on Saturday, October 22, 2022

Why use a Transit Gateway

Transit Gateway or VPC Peering? A common question but not an easy answer. This is why I recommend Transit Gateway for anything over a POC.

Comprehensive analysis of Transit Gateway vs VPC Peering for hybrid network connectivity - comparing cost, throughput, VPN integration, and scalability.

Posted by Robin Ford on Tuesday, July 5, 2022

Creating a Well-Architected VPC

So how do we make our VPC Well-Architected and Secure?

Complete VPC design guide with CloudFormation templates covering subneting strategies, routing, security controls, NACLs, VPC Endpoints, and NAT Gateways.

Posted by Robin Ford on Wednesday, April 20, 2022

How to Well-Architect network connectivity to AWS services.

With multiple ways to access AWS Services which is the best?

Cost and performance comparison of 3 AWS connectivity options: Internet Gateway, NAT Gateway, and VPC Endpoints using Well-Architected Framework evaluation.

Posted by Robin Ford on Sunday, December 5, 2021

AWS Community Builders

Why I applied and why I'm excited for the next 12 months.

Personal journey as an AWS Community Builder - exploring the program benefits, knowledge sharing, mentorship, and contributions to the tech community.

Posted by Robin Ford on Friday, October 1, 2021