Linux Creating Linux swap files Following on from my last post I've been migrating more services into EC2 from my current hosting provider. Another task I found myself needing to do was creating swap files for my EC2 instances. This was another task for which I had completely forgotten
Linux Auto-renew Let's Encrypt certs with systemd timers Recently I've been migrating some of my sites to a new hosting platform. During this process I found myself re-creating configuration for various things, and realizing that I don't quite remember all the steps I took to configure it in the first place. One
Linux Updating ulimit on a running Linux process Today in $day_job I came across an interesting problem. We had a redis process which, after some heavy load testing, locked up and spiked the CPU at a constant 98%. I spent some time working with a colleague of mine in debugging this,