
From The Vault: How SNAT Turned UDP Into a Stateful Protocol
Cilium eBPF connection tracking, and how SNAT quietly turns stateless traffic into stateful

A 502 Bad Gateway tells you that one proxy failed to get a valid response from another system. It does not tell you which layer failed, whether the application ever saw the request, or which timeout a
In Part 1 we got a verified ETCD snapshot back onto an Ansible control host, even with the cluster fully down. I've come across many a blog posts describing ETCD restoration process on a single node,
Part 1: Notes on taking frequent ETCD snapshots, and setting up an automated workflow to getting one back when the control plane is down and kubectl returns nothing but errors.

Documentation discipline done right

How cache stampedes happen, how request coalescing contains them
From CPU protection rings to context switches - understanding why standard VMs feel heavy and how MicroVMs are attempting to fix the bottleneck.