An IPv6 addressing detour My next post about The Little Network That Could (TLNTC) was going to be about IPv6 addressing plans - and this post is definitely about IPv6 addressing - but before we can lay out a plan, there's something more...
(Yes, I know this is being published on April Fools' Day. I might be a fool, but this is not an April Fool's joke.) This year's model Platform teams and platform engineering are phenomenons which have taken the cloud native world by storm...
In keeping with my usual tradition of throwing in a random off-topic post every now and then, here is my favourite post-run meal, a banana/peanut butter/vanilla protein shake. When I get it just right, I think it's better than any thickshake I've...
Part 1: Even maildirs need their personal space I did a migration of my mail server over the last weekend and I ran into a strange error when I brought things back online. My system was receiving mail fine, but it was being deferred in the...
After maintaining a WordPress-based site for some years, I've decided it's time to try something that requires a little less maintenance, and hopefully performs much better. After looking at a few options, I landed on Pelican, a python-based...
This morning I walked out of the bedroom to make my morning coffee and was greeted with a tech support problem. My wife had been up for a while already, and said something was wrong with the network. Coffee in hand, I opened the laptop and was...
[For more context: see Tech nibble: KVM host networking topologies] Traditional VLAN bridging and its problems Linux bridges have been the traditional means of connecting KVM guests, and VLAN support is usually the means by which they are...
As part of my move to IPv6-only networking, I took some time to re-evaluate the functions and configurations of my VM hosts with the aim of greater segregation between workloads, more predictable failure scenarios, and making sure my IPv6...
I've previously explained the background and motivation of The Little Network That Could, but I realised that there are some implicit values that permeate my choices which would be worth making explicit. Here are a few which come to mind:...
It seems that MLD snooping on Linux bridges has broken various parts of IPv6 connectivity over the past 10 years or so. Initial reports of bugs were from 2013, when having MLD snooping enabled on the bridge broke neighbour discovery (breaking...