Ubios-udapi-server

It hosts the internal UDAPI (Ubiquiti Device API) endpoints that the frontend UI and mobile app use to communicate with the hardware.

The ubios-udapi-server is a critical backend process in the Ubiquiti UniFi ecosystem. It serves as the primary configuration and management engine for UbiOS-based gateways, such as the UniFi Dream Machine (UDM), UDM Pro, and the newer UniFi OS Server for MSPs. ubios-udapi-server

If you are a network administrator or a power user, understanding how this service operates—and how to troubleshoot its occasional high resource consumption—is essential for maintaining a stable network. What is the ubios-udapi-server ? It hosts the internal UDAPI (Ubiquiti Device API)

how to stop ubios-udapi-server from running udhcpc with "-r"? and VLAN assignments.

It handles the core logic for routing protocols , firewall rules, and VLAN assignments.