Integrated Lights-Out, or iLO, is a proprietary embedded server management technology by Hewlett-Packard which provides out-of-band management facilities. The physical connection is an Ethernet port that can be found on most ProLiant servers and microservers of the 300 and above series.
iLO has similar functionality to the lights out management (LOM) technology offered by other vendors, for example Sun/Oracle’s LOM port, Dell DRAC, the IBM Remote Supervisor Adapter and Cisco CIMC.