Tuning QUIC for lossy last-mile links
Buffer sizing, pacing and congestion-control experiments across congested access networks.
Notes on networks, systems and quiet automation.
Field notes from running small-scale infrastructure: routing, transport protocols, observability and the occasional deep dive into packet behaviour.
Anycast in practice, without a backbone
What breaks when you announce the same prefix from two commodity boxes — and how to keep it boring.
A monitoring stack on one small node
Prometheus, Grafana and a lot of restraint: dashboards that survive a 1 vCPU budget.
Reversible firewall changes
A discipline for editing live rulesets on remote machines you cannot physically reach.
Certificates that renew themselves
ACME plumbing, deploy hooks and the small scripts that keep TLS boring for years.
Debugging latency spikes at 3 a.m.
When graphs lie: correlating qdisc counters, neighbour tables and one noisy rack.
About
A personal notebook on infrastructure engineering — written between deploys, mostly for future me. No trackers, no analytics, no third-party fonts.