Just want to highlight one thing: Essentially, the hostname should not have any indication of the host’s purpose or function, but instead acts as a permanent,

Just want to highlight one thing: Essentially, the hostname should not have any indication of the host’s purpose or function, but instead acts as a permanent, unique identifier to reference a particular piece of hardware throughout its lifecycle It follows that if you are using virtual machines and configuration management, where the lifecycle of a VM or amazon instance is trivial compared to an actual piece of hardware, there is less benefit to separating hostname from functional name.