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How to secure thousands of websites with Let's Encrypt certificates

The world is shifting towards HTTPS encryption everywhere, as evident by Google's announcement that Chrome would start labeling all HTTP websites as insecure beginning with Chrome 68 in July 2018. It's not a

Brian Lund Larsen Brian Lund Larsen

Automating TeamCity installation in Kubernetes on AWS

TeamCity is a great product, but while the normal method of configuring it through the UI is relatively easy, it's also not the best option in these days of automation and "everything-as-code&

Brian Lund Larsen Brian Lund Larsen

Building Windows 2016 AMI on AWS with Packer and Chef

There are a few different ways to setup and configure a new EC2 instance on Amazon. The most basic is launching an instance manually either through the CLI or the web console, then

Brian Lund Larsen Brian Lund Larsen
aws

Bootstrapping Windows EC2 instances with Chef for Autoscaling Groups

Amazon provides a nice little script in their documentation, that can be used to associate an EC2 instance with a Chef server (for example AWS OpsWorks for Chef Automate) from userdata. This is

Brian Lund Larsen Brian Lund Larsen
aws

CodeDeploy and AWS Elastic LoadBalancer - Windows edition

Amazon has a nice section in their CodeDeploy user guide, describing how CodeDeploy can integrate with their Elastic Loadbalancer product. If you rely on your loadbalancers health check to detect that an instance

Brian Lund Larsen Brian Lund Larsen
mail

Long DKIM keys and GratisDNS.dk

After adding a TXT record with the public DKIM key for a domain hosted at GratisDNS.dk, the zone stopped updating. Querying anything returned the configuration and serial from before the DKIM key

Brian Lund Larsen Brian Lund Larsen
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