Tag

Linux

Linux 3 min read

When sysctl took down my subnet

A rough edge case in Linux kernel configuration ended up taking my public /24 subnet offline regularly. Read this post to find out why.
Development 3 min read

... and I Must Scream

In this post I build a custom Linux kernel module to teach the computer how to scream.
Networking 3 min read

Making Sense of WireGuard

I recently decided to try out the hot new VPN protocol on the block, WireGuard. It took me about 2 hours of debugging and diagnostics to make sense of things, so I'm logging my notes here for future reference.
Containers 1 min read

Building Docker containers behind a proxy

How do you configure Docker to use a proxy when building a container, but not when running it?
Cloud 1 min read

Controlling a Kubernetes cluster remotely

I didn't set up Kubernetes exactly as I intended to use it, so here's how I recreated the SSL certificates.
Cloud 3 min read

Kubernetes: Getting Pods to talk to the Internet, not systemd

Systemd plays havoc with Kubernetes defaults and kills DNS. Here's how to fix that.
Cloud 9 min read

Learning Kubernetes at Home: Becoming the Helmsman

In this post, I try to setup a Kubernetes cluster and make sense of the basic types of objects that Kubernetes revolves around.
Linux 1 min read

mDNS Name Resolution in Linux

Bonjour is really useful on Windows and macOS. It turns out that you can also use it on Linux!
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