Welcome to CoreSight

CoreSight is an on-premises video management system (VMS) from Double Backslash. It turns a single Ubuntu server into a complete camera server: camera discovery and onboarding, live monitoring in the browser, continuous and motion-triggered recording, playback and export, AI analytics, alarms with escalation, and health monitoring — all running on your own hardware, fully offline-capable.

You operate CoreSight entirely from a web browser. There is nothing to install on operator workstations.

Main concepts

The box — the Ubuntu server CoreSight runs on. One box serves one site: it records footage to its own storage, serves the web UI over HTTPS, and keeps working without any internet connection.
Cameras — IP cameras connected over your network. CoreSight discovers them automatically (ONVIF and vendor-native discovery) or you add them manually with an RTSP URL. Supported vendors get native drivers; everything else works over generic ONVIF/RTSP.
Recordings — crash-safe video segments written to storage pools on local disks or network shares, indexed for timeline playback, with retention rules and legal hold.
Events and alarms — motion and AI detections become events; events raise alarms that operators acknowledge, assign, and clear, with escalation and notifications if nobody responds.
Licenses — CoreSight is licensed per camera. The first 4 cameras are always free; a license file unlocks more seats. A missing or invalid license never locks you out — the box simply stays on the free tier.

Who this guide is for

Security operators who watch live video and handle alarms, and site administrators who install the box, onboard cameras, and manage storage, users, and licensing. Each page is task-oriented — start with the section that matches what you need to do.