I received an interesting E-Mail from my ISP recently. It said (translated from german): "Security warning: we detected an open DNS resolver on your system. Open DNS resolvers can be misused for DDoS reflection attacks against third parties. I was indeed running a publicly exposed DNS server that acted as nameserver for a domain. After I secured my DNS server, I decided to explore the mentioned DDoS reflection attacks.

This blog post briefly explains canary deployments. The content doesn't assume the use of specific technologies, although the examples reference Kubernetes concepts.

This blog post documents the steps I took to create a Kubernetes cluster according to Kelsey Hightower's "Kubernets The Hard Way", but with LXC.

"The Unicorn Project" by Gene Kim is the successor to the book "The Phoenix Project", although the books can be read independently.

HashiCorp Vault is a tool for centralized secrets management. In my opinion, the best way to learn a technology is to use it. For this reason, we are going to build a demo system in this blog post.

Every year, Digital Ocean organizes Hacktoberfest, an event meant to promote Open Source involvement. Everyone who registers and creates 4 Pull Requests in October on GitHub receives a T-Shirt.

Gain a high level understanding of the infrastructure pieces and traffic routing rules that are involved when a SPA frontend is used