Removing Stale SSH hosts

.ssh/known_hosts

Open crosh, the Chrome OS developer shell via <ctrl> <alt> t

Press and hold the <ctrl> key and right-click via the mouse

• within the pop-up window select ‘options’

Under SSH files – remove the cached enter and click save.

Chromebook lifecycle

To check your Auto Update Expiration (AUE) head over to chrome://settings/help

then click ‘Chrome OS settings’

then click on ‘Additional Details’ you should see a screen similiar to

The device stack list can be found in google docs – this may help when replacing your device to select a more recent model so that you get the maximum amount of AUE.