root:changeme            # default password
start /SYS               # power on
stop /SYS                # power off
reset /SYS               # reset
start /SP/console        # login into console

ILOM / ALOM is a management interface for sun server. You can even power off or power on the machine or make some BIOS / OpenFirmware setups. You can also use a management Ethernet interface for a java virtual screen or CDROM.

Setting up an IP for the Ethernet interface:

cd /SP/network
set pendingipaddress=10.2.3.4
set pendingipnetmask=255.255.255.0
set pendingipgateway=10.2.3.1
set pendingipdiscovery=static
set commitpending=true

Afterwards https://10.2.3.4