Add mike to lz group

usermod -a -G lz mike

Add group users

pw group add users

Set user groups

pw user mod lz -G lz,users,wheel
pw user mod root -s /usr/local/bin/bash

Add IP alias to interface

ifconfig ep0 inet 192.168.57.10 netmask 255.255.255.255 alias
ifconfig bge0 inet 74.53.143.227 netmask 255.255.255.240 alias

Remove alias

ifconfig bge0 inet 74.53.143.227 -alias