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Antivirus for S3 Buckets

Many of our AWS consultancy clients ask me: “How can we make sure that the files that we store on S3 are virus free?” As always, our clients are looking for simple and cheap solutions. That’s why we developed Antivirus for Amazon S3. Every file that i...

Manage AWS EC2 SSH access with IAM

AWS can deploy one EC2 Key Pair to your EC2 instance. But this approach has several disadvantages: You can only use one key per EC2 instance. But you shouldn’t share keys between users. Access to EC2 instances via SSH can not be restricted to specific ...

New Online Training - Automating AWS with CloudFormation

Michael and I have joined Pluralsight as authors for online trainings. I have worked on a course about Infrastructure as Code with CloudFormation during the last two months. I’m excited to announce that my first course was released: Automating AWS with ...

New CloudFormation Templates - NAT Gateway, Static website, Security

We released four new CloudFormation templates. Using our Infrastructure as Code templates will help you to bootstrap common setups on Amazon Web Services (AWS) within minutes. Our templates are exclusively designed for AWS CloudFormation, the Infrastruc...

Event Driven Security Automation on AWS

If your developers create their own infrastructure in minutes, who cares about security? In some organizations the security teams become the new bottleneck if the company wants to deploy every commit to production. Because manual reviews can’t be done f...

AWS Monthly Review - March 2016

AWS is innovating fast. This is a summary of what happened during past month. Announcements and News Happy Birthday AWS, 10 years of Cloud Computing. (AWS Blog Post) Referencing Security Groups in peered VPCs is possible even if the VPCs belong to diffe...

Security Templates for AWS CloudFormation

This page has moved to GitHub: https://github.com/widdix/aws-cf-templates/tree/master/security

Introducing the Object Store: S3

Back in the old days, data was managed as files in a hierarchy consisting of folders and files. The file was the representation of the data. In an object store, data is stored as objects. Each object consists of a globally unique identifier, some metada...

Optional Parameter in CloudFormation

Sometimes you want a CloudFormation Parameter to be optional. Unfortunately a blank Parameter contains an empty string. If you pass this empty string to e.g. the KeyName Property of an EC2 Instance or Launch Configuration you end up with a validation er...

Avoid Sharing Key Pairs for EC2

Lock and key devices are used by mankind for more than 6.000 years. Whether mechanical, electrical or digital, the concept stays the same: a key is needed to access resources behind a lock. Technology has made incredible progress since then. But one pro...