Field Notes

IT & Networking Blog

Field notes from production networks — MikroTik, Cisco, FTTH, and the tools we use to keep ISPs running.

MikroTik Hotspot in Bridge Mode: The Right Way

Field-tested RouterOS hotspot config behind a transparent bridge — keep client visibility, fix walled-garden quirks, and ship it.

Step-by-step ONU authentication, VLAN tagging, and bandwidth profile workflow for small ISPs running ZTE C320 / C300 OLTs.

LibreNMS, Grafana, and SmokePing on a single Proxmox host — the exact stack we deploy at every new POP.

Schema-per-tenant vs row-level isolation, FreeRADIUS sharding, and the migration mistake I'd undo if I could.

Tactical MikroTik, FTTH, and ISP write-ups, delivered when they ship. No spam.