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Welcome to cloudonaut

Your launchpad for Amazon Web Services

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Welcome to cloudonaut

Your launchpad for Amazon Web Services

Cloudonaut Teaser

CloudFormation Modules

Copying and pasting code or configuration comes with a lot of challenges. Fixing a bug requires you to find all the copies to fix them as well. Adding new features to all the copies becomes difficult if copies diverge. That’s why many programming langua...

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#021 DNSSEC with Route 53: Protecting the core of the Internet

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The Internet relies on DNS. This makes it all the more important to do everything possible to protect the global DNS infrastructure from attacks. Andreas explains how DNSSEC protects from DNS spoofing. During the demo you will learn how to enable DNSSEC...

#020 All you need to know about encrypting S3 buckets

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Dance like nobody’s watching, encrypt like everyone is. Learn how to enable S3 default encryption. But that’s not enough. A bucket policy ensures all uploaded objects comply with your encryption standard. On top of that, you will learn how to avoid insa...

#019 AWS SDK for JavaScript v3 - The good and bad parts

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The AWS SDK for JavaScript v3 is generally available since December 2020. But should you use it? In this video, Michael dives into the new capabilities and demonstrates use cases where the new SDK shines.

#018 AWS Client VPN: Connected with the Cloud

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AWS Client VPN provides secure client-to-site connections (TLS) enabling users to connect to resources within a VPC. Learn about the scenarios where AWS Client VPN can help. Also, Andreas demos how to combine AWS Client VPN with Azure Active Directory f...

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Staying ahead of the game with Amazon Web Services (AWS) is a challenge. Our weekly videos and online events provide independent insights into the world of cloud. Subscribe to cloudonaut plus to get access to our exclusive videos and online events.

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Does your VPC endpoint allow access to half of the Internet?

Are you using VPC endpoints to enable private connections between your VPC and AWS services? Drop everything and check the policy attached to your VPC Endpoint for S3. You might have allowed access to half of the Internet - assuming that half of the Int...

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AWS Client VPN: Connected with the Cloud

Everybody talks about remote work those days. A fundamental prerequisite is to provide secure connectivity to your infrastructure. No matter if only a few engineers or users need to access resources within a private network. About two years ago, AWS ann...

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5 good reasons not to get AWS certified

I completed my first AWS certification in 2014: AWS Solutions Architect Associate. During the following years, I accomplished all five associate and professional certificates. However, Michael and I decided not to renew our AWS certifications about a ye...

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Unboxing Amazon Managed Service for Prometheus (AMP)

AWS announced Amazon Managed Service for Prometheus (AMP) in December 2020 during re:Invent. Prometheus is a monitoring system as well as a time-series database. Let’s take a first look at the managed service that is currently in public preview. What i...

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Guest authors wanted!

Have you ever dreamed of publishing an article on cloudonaut? Are you a freelancer or employee who wants to attract attention to boost your career? This is your chance! We are looking for guest authors who are interested in publishing an article on clou...

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What's new about AWS SDK for JavaScript v3?

The AWS SDK for JavaScript v3 is generally available since December 2020. This challenge unites all AWS users: is this new version worth investing your precious time? In this blog post, I show you the new capabilities and use cases where they help you ...

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Cover of Rapid Docker on AWS

Become a Docker on AWS professional!

Our book Rapid Docker on AWS is designed for DevOps engineers and web developers who want to run dockerized web applications on AWS. We lead you with many examples: From dockerizing your application to Continuous Deployment and Infrastructure as Code on AWS. No prior knowledge of Docker and AWS is required. Get the first chapter for free!

#38 5 good reasons not to get AWS certified

I completed my first AWS certification in 2014: AWS Solutions Architect Associate. During the following years, I accomplished all five associate and professional certificates. However, Michael and I decided not to renew our AWS certifications about a ye...

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#37 How to choose an EBS volume type?

Elastic Block Storage (EBS) provides solid state drives (SSD) and hard disk drives (HDD) for EC2 instances. The virtual machine accesses the persistent storage via the network. In December 2020, AWS announced another volume type called General Purpose S...

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#36 re:Invent 2020: Recap of Werner Vogels's Keynote

Werner Vogels's keynote was a blast and definitely the highlight of re:Invent 2020. Michael and I are going through the announced features and services. As usual, we also take a look at the technical details.

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#35 3½ ways to workaround missing CloudFormation support

Are you following the Infrastructure as Code approach using CloudFormation? If so, I bet you encountered a situation where CloudFormation misses support for a service's latest features. I run into those issues weekly! So what can we do about it?

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Cover of Amazon Web Services in Action

Level up, strengthen your AWS skills.

Our book Amazon Web Services in Action is a comprehensive introduction to computing, storing, and networking in the AWS cloud. You'll find clear, relevant coverage of all the essential AWS services, emphasizing best practices for security, high availability, and scalability. Get the first chapter for free!

Cheap, Durable, Fast. How to choose an EBS volume type?

Elastic Block Storage (EBS) provides solid state drives (SSD) and hard disk drives (HDD) for EC2 instances. The virtual machine accesses the persistent storage via the network. In December 2020, AWS announced another volume type called General Purpose S...

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How to Become an AWS Certified Solutions Architect

In 2012, I created my first AWS account. Back then, I worked as a software engineer and was looking for a way to deploy an online trading platform. Two years later, I attended re:Invent — the yearly conference organized by AWS — in Las Vegas for the fir...

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What's the CO² footprint of your architecture?

Fighting climate change is one of the biggest challenges of our days. When designing an architecture, there are many important factors to consider: security, reliability, performance and costs. I’d like to add another factor to that list: the CO² footpr...

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3½ ways to workaround missing CloudFormation support

Are you following the Infrastructure as Code approach using CloudFormation? If so, I bet you encountered a situation where CloudFormation misses support for a service’s latest features. I run into those issues weekly! So what can we do about it? Do yo...

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Unusual AWS Architectures

AWS provides many building blocks. As architects, we have to choose the right building blocks to construct our systems. But sometimes, the proper building block is not available, and we have to make compromises. In this blog post, I show four unusual AW...

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Amazon EventBridge versus Amazon SNS: What's the difference?

Amazon EventBridge (formerly CloudWatch Events) and Amazon SNS provide a way to send events to multiple subscribers. From a high-level perspective, both services are similar. This leads to the question: But how are they different? What advantages do the...

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Andreas & Michael Wittig

Andreas Wittig and Michael Wittig
About us

We are independent consultants, technical writers, and programming founders. All these activities have to do with AWS. And by the way, we are brothers too.

In 2009, we joined the same company as software developers. Three years later, we were looking for a way to deploy our software—an online banking platform—in an agile way. We got excited about the possibilities in the cloud and the DevOps movement. It’s no wonder we ended up migrating the whole infrastructure of Tullius Walden Bank to AWS. This was a first in the finance industry, at least in Germany! Since 2015, we have accelerated the cloud journeys of startups, mid-sized companies, and enterprises. We have penned books like Amazon Web Services in Action and Rapid Docker on AWS, we regularly update our blog, and we are contributing to the Open Source community. Besides running a 2-headed consultancy, we are entrepreneurs building Software-as-a-Service products.

We are available for projects.

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