ESX/ESXi root login over SSH
This is an old one, but worthy of documentation…
By default root login over SSH is disabled in ESX 3.X and vSphere 4.X. While it is best practice for security to leave this disabled, from time to time a situation may warrant opening up this access.
To enable this on ESX 3.X and vSphere 4.X (w/service console), [...]
