A more precise comparison on Linux would be OpenVZ and LXC (or Zones if you&#x27;re a Solaris admin).<p>As for why it&#x27;s not gained more momentum, that would likely just be because Linux popularity dwarfs FreeBSD. Much the same reason as why so much effort was made to port ZFS to Linux despite FreeBSD already having excellent support. But for what it&#x27;s worth, jails have been widely used within the FreeBSD community for quite some years.<p>It&#x27;s a great shame FreeBSD doesn&#x27;t get more love because it really is a fantastic platform. But then it&#x27;s just one of a long list of very credible operating systems that often get overlooked.