"FreeBSD jails is the same concept as Docker, even it has been around for longer. Can somebody explain why it has never gained more momentum?" The very first V

"FreeBSD jails is the same concept as Docker, even it has been around for longer. Can somebody explain why it has never gained more momentum?" The very first VPS provider[1] based their offering on jail and FreeBSD. They still offer them today (I sold the business in 2004). We didn't call them "VPS" - that term came about later, in 2002 I think ... we called them "server instances". We also didn't have any of these nifty deployment/monitoring/management tools - there was nothing but jail(8). [1] JohnCompanies in 2001.