| Ports | Changeable | Installation type | Process | Open the port* |
|---|---|---|---|---|
20040 20041 20108 | No | Server and Client Failover Server and Client | Self-diagnostics service | Not required |
| 20109 | Yes | Server and Client Failover Server and Client | NativeBL Core (see Configuring the Server ports) | Required |
| 20110 | No | Server and Client Failover Server and Client | PostgreSQL database | Required |
20111-20210 | Yes | Server and Client Failover Server and Client | Server (see Instalacja) | Required |
80 (Windows) 8000 (Linux) | Yes | Server and Client Failover Server and Client | Web server (see Configuring the web server) | If necessary + HTTPS port 443 |
554 (Windows) 50554 (Linux) | Yes | Server and Client Failover Server and Client | RTSP server (see Configuring an RTSP Server) | Not required |
| 8888 | No | Server and Client Failover Server and Client Client | Client HTTP API (see Client HTTP API) | Not required |
4000 4646-4648 8300-8302 8500 8600 | No | Failover Server and Client | Failover (see Ports used by the failover system) | Required |
* in a configuration including several Servers in firewalled LANs, or port forwarding on the router under NAT environment.