https://openvz.org/
Open source container-based virtualization for Linux.
Multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server enabling better server utilization and ensuring that...
open source containerbased
https://freebsdfoundation.org/project/freebsd-jail-based-virtualization-project/
FreeBSD Jail Based Virtualization Project | FreeBSD Foundation
Jul 24, 2020 - FreeBSD Developer: Bjoern Zeeb Bjoern A. Zeeb has been awarded a grant to improve FreeBSD's jail based virtualization infrastructure and to continue to work on...
based virtualizationfreebsd