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2018 in Review

The year 2018 is coming to an end. We want to thank our readers, customers, supporters, and partners. It was a pleasure to be part of an inspiring community. BlogWe share how-tos, lessons learned and opinions on our blog cloudonaut.io. Thanks for readi...

How to become an AWS expert

This post was original published on the AWS News Blog. If you are just starting to use AWS today, you might think it’s going to be hard to catch up. How can you become an AWS expert? How can you know everything about AWS? I asked myself the same quest...

Eat your own dog food: how AWS leverages Serverless

Tim Bray from Amazon gave a great talk at re:Invent 2018 where he shows us how AWS uses Serverless technologies. Did you know that some of the newer services such as API Gateway and EKS are using API Gateway and Lambda to implement the control plane? In...

The somewhat different AWS re:Invent recap

I’m still recovering from our trip to AWS re:Invent in Las Vegas. The conference was a blast. It was a huge pleasure to meet old and new friends. This blog post contains a somewhat different recap of re:Invent 2018. Are you looking for a more traditiona...

My mental model of AWS

AWS is a complex system that no one can understand end-to-end? As AWS professionals we still have to deal with the AWS system daily. We design for AWS, and we debug our applications running in AWS. How can we deal with a system that is too complex to un...

Meet us at re:Invent (Update)

Michael and I are looking forward to attending re:Invent 2018 in Las Vegas. The most important reason for us to fly off to the other side of the world is to meet old and new friends. Unfortunately, time is limited, and therefore we have already started ...

Three simple rules to avoid data leaking from S3

Reviewing AWS accounts with a focus on security is part of my day-to-day job. My most common finding: unwanted public read or write access to S3 buckets. Why is that? Because there are three different ways to define who can access your S3 buckets: IAM p...

Customized rate limiting for API Gateway by path parameter, query parameter, and more

API Gateway provides a feature to limit the number of requests a client can make per second (rate) and per day/week/month (quota). Rate limiting is very useful to protect your system from resource starvation caused by a client flooding your system with ...

EC2 Network Performance of t3

AWS introduced the t3 instance type in August. Time to update the EC2 Network Performance Cheat Sheet. The following table shows the network capabilities of t3 instances. Compared to the last generation t2 there is no difference in the baseline through...

Hot off the press: Amazon Web Services in Action Second Edition

We wrote and published the first edition of Amazon Web Services in Action in 2015. Our book quickly became a bestseller. We are still amazed by the positive feedback we receive from our readers every day. Thanks for that! Nevertheless, AWS is changing f...