eBPF

Intro to eBPF

This introduction to eBPF is adapted from the beginning of DevOps’ish 278 I occasionally ask for writing prompts from folks on Twitter for DevOps’ish. Sometimes asking on social media works well. Other times it’s giving someone a good URL and still scratching my head about what to write. But for DevOps’ish 278, the people have spoken. They want to learn more about eBPF. What is eBPF? eBPF (which is no longer an acronym for anything) is a revolutionary technology with origins in the Linux kernel that can run sandboxed programs in a privileged context such as the operating system kernel. It is used to safely and efficiently extend the capabilities of the kernel without requiring to change kernel source code or load kernel modules. ...

August 4, 2022 · Chris Short

code-server, Caddy, Tailscale, and Hugo = My ultimate dev environment

I think I’ve discovered my development environment equivalent to nirvana. code-server fronted by Caddy on a box with Tailscale installed. I maintain a lot of Hugo websites. Hugo has been my go-to content management system (CMS) since discovering it in 2017 (I got my first Hugo site at GopherCon 2017). I’ve lost count of the number of domains I own (a common nerd problem). But, I know I have a handful of websites I update regularly. For years I’ve used the Settings Sync extension in VScode to make things consistent across machines. But something was always missing (for example, shell integration, fonts, etc.). ...

July 2, 2022 · Chris Short
UptimeRobot screenshot

Having a status page forced Comcast to fix my internet

TL;DR: Comcast had a local area issue. I set up a status page for my house after many outages. The status page actively monitoring connectivity forced Comcast to look outside our home for a fix after several visits. Forced switch to Comcast Business The pandemic hit, and our lives became 100% “virtual” last year. As a family that “cut the cord” years ago and I’ve been working from home for quite some time, our internet consumption was pretty high. Our neighborhood is only serviced by one provider, Xfinity (aka Comcast, one of the worst providers of them all). We were ever mindful of our Xfinity usage. The 50% emails before the halfway mark in our billing period made for some dining room table conversations about peak usage and devices. Once I fired up Red Hat Livestreaming, Xfinity’s data caps would be smoked within the first fifteen days of the month. We had no choice but to make the switch to Comcast Business to remove those caps. ...

October 5, 2021 · Chris Short