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Understanding Infrastructure as Code

Infrastructure as Code describes the idea of using a high level programming language to control IT systems. In software development, tools like automated tests, code repositories and build servers are increasing quality of software engineering. If your ...

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Day 1 at the AWS re:Invent – what we learned

Every year AWS runs a big conference with 19,000 attendees in Las Vegas to announce new services and to educate people in more than 270 sessions about how to use AWS. Although the conference started on Monday, the first Keynote was on Wednesday. And as ...

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Amazon Web Services in Action is available

Michael and I have written a book about Amazon Web Services. Our goal was to provide you a deep introduction to AWS with a lot of examples. We have started writing our book in January 2015. And with a lot of support from Manning, our reviewers, and MEAP...

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Prevent outages with redundant EC2 instances

Unfortunately, EC2 instances aren’t fault-tolerant. Under your virtual server is a host system. These are a few reasons your virtual server might suffer from a crash caused by the host system: If the host hardware fails, it can no longer host the virtu...

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Building blocks for highly available systems

Thanks to the cloud, highly available systems are becoming the new standard. Creating an architecture offering high availability or even fault tolerance is affordable nowadays as you can use ready-to-use building blocks. On top of that, you can operate ...

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Monitor your AWS account to detect suspicious behavior in real time

You can track every change made to your AWS account with CloudTrail. Did you know that you can also monitor your AWS account in near real time with custom rules specific to your use case? By combining CloudTrail, S3, SNS, and Lambda, you can run a piece...

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Your single AWS account is a serious risk

Your AWS account is one of the most valuable things you own if you run a business on AWS. If you only own a single AWS account, you’re facing a serious security risk! The post will show you why this a problem and how you can solve it. This post receive...

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Private subnets are broken on AWS

This blog post was written in July 2015 and is partly outdated. Amazon released [VPC endpoint for S3](http://aws.amazon.com/de/about-aws/whats-new/2015/05/introducing-amazon-vpc-endpoints-for-amazon-s3) and [Amazon VPC NAT Gateway](https://aws.amazon.co...

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Amazon Web Services in Action

Newer edition available! Amazon Web Services in Action, Second Edition is now available. Andreas and I, have written a book about Amazon Web Services (AWS) called Amazon Web Services in Action. Our book focuses on essential AWS services including vir...

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Interacting with AWS to turn system diagrams into reality

Generally speaking, you can host any application on AWS. If you interact with AWS, you will always make calls to the API. The API is the interface between you and AWS as figure 1 demonstrates. Figure 1 Tools to interact with the AWS API You will now get...

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