Alongside my tech nibbles posts, I'm going to add another type of short post which chronicles the difficulties I've encountered in trying to achieve my IPv6-only end state. These posts may contain somewhat spicy opinions 🌶️ or ranting 🤬. Mostly I...
Once again it has been too long between blog posts, and there has been quite a lot of activity going on behind the scenes in The Little Network That Could (or TLNTC, as I call it). I've built up such a large backlog of topics (mostly from the...
It has been far too long since my previous post introducing TLNTC. This episode will be a (hopefully!) shorter overview of TLNTC's journey into IPv6 connectivity. Early days I don't know when I started first started to think seriously about...
A few months ago now I got a couple of friendly alerts from OpsGenie telling me that my web server VM was down. I logged in and poked around, but things seemed to be pretty normal. The OpsGenie alert self-resolved shortly afterwards, and I...
(Credit: Flickr) Gather 'round, folks - Grandpa has a story to tell. (OK, I'm not a grandpa and I don't expect to be one any time soon, but as I've journeyed back in my memory to write this post, I sure feel old...) For as long as it has been...
[I originally started this post several years ago, but never got around to finishing it at the time. I think this instalment is more than overdue, and I hope to finish a few more over the coming weeks.] A big change in my running came around...
This morning before work I sat for (and passed) my attempt at the newly-minted VyOS Certified Network Engineer certification. Mostly this post is just to let folks know that the certification is out there and encourage them to take it, but also I...
A friend asked me today: what are the pros and cons of chronyd and ntpd? I've used both for a while, but never actually sat down to think about this question. So here are some initial thoughts: ntpd (the older of the two implementations): has had...
NTP: a behind-the-scenes protocol As I've mentioned before, Network Time Protocol is one of those oft-ignored-but-nonetheless-essential subsystems which is largely unknown, except to a select few. Those who know it well generally fall into the...
Last week I was privileged to be sponsored by the Network Time Foundation to give a talk at AusNOG 2017. The slides are now available on the conference site (and here, too). The talk covers some of the operational issues which NTP has faced over...