kernel core dump

configure server:

sudo mkdir /PanicDumps

sudo chown root:wheel /PanicDumps

sudo chmod 1777 /PanicDumps

sudo launchctl load -w /Sysytem/Library/LaunchDaemons/com.apple.kdumpd.plist

sudo launchctl list | grep kdump

configure client:

sudo nvram boot-args="debug=0xd44 _panicd_ip=10.10.1.1"

10.10.1.1 is server ip