Argh!  Thanks Apple... apparently Content Caching is not available if running in a VM:   https://discussions.apple.com/thread/8224088 dang it!!   I wonder if there is a way to trick macOS into thinking it is not virtualized? sudo /usr/bin/AssetCacheManagerUtil canActivate 2018-03-12 15:25:56.535 AssetCacheManagerUtil[656:9496] Built-in caching server can not be activated: (no error) sudo /usr/bin/AssetCacheManagerUtil activate 2018-03-12 15:26:07.583 AssetCacheMa