Photo by Max Kukurudziak on Unsplash

In this article, you’ll find a simple guide explaining how to build a centralised, secure Internet access (egress-filtering) solution using AWS Network Firewall in a multi-account AWS environment. I’ll describe why you’d want an egress-filtering solution, a potential architecture, and how to build it, plus a few lessons and thoughts on AWS Network Firewall after building this solution myself.

1. What is Egress-Filtering?

In simple terms, egress-filtering involves controlling and monitoring network traffic that flows out from your networks to the Internet. Most people understand the importance of controlling connectivity from the Internet into their networks (through snazzy next-gen firewalls). …


The complete guide

Photo by Tierra Mallorca on Unsplash

Do you think your cloud costs are too high? I think most businesses can find savings if they look in the right places. In this article I will provide a complete guide to reducing your AWS costs covering five different, but equally important perspectives:

  1. Architecture
  2. Operations
  3. Pricing Models
  4. Cost Management
  5. Service Optimisation

This article will be somewhat long, but rather than giving you “10 tips to reduce your AWS costs”, I’ll instead provide you with a comprehensive, end-to-end guide covering every perspective that should be addressed to truly optimise your AWS cloud costs.

Perspective 1: Architecture

In this perspective, we’ll look at how…

Karl Maier

Director Cloud, DevOps, Security | Slalom Build Melbourne

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