FreeBSD jails pre-date containers like Docker by a long shot and as such, are far more straightforward. The thing I like about them is that they are so simple to set up and are easier to understand when compared to newer technologies such as Docker and Kubernetes. Review collected by and hosted on G2.com.
You will need to be very comfortable with a terminal; there is no GUI interface here like you can get for Docker on Windows. If you are comfortable with the terminal, you will easily be able to use jails - if you are not, then I would suggest trying something else. The thing that tech like Docker do well is defining your software's dependencies and letting the container deal with it for you. This is something jails will not do for you. Review collected by and hosted on G2.com.
Creating isolated secure virtual machines.
Network stack virtualization engine.
In the case of hacking a virtual system and bringing its functionality out of action, it will not affect other running virtual systems. Review collected by and hosted on G2.com.
It is not possible to use multiple IP addresses for one JAIL.
Lack of differentiation of system limits between the parent and guest systems.
Difficulties with using direct access to devices. Review collected by and hosted on G2.com.
Jails are simple to deploy, safe, and secure. They are very reliable for spinning up virtualized instances of FreeBSD without much additional overhead. Review collected by and hosted on G2.com.
It's not as easy to use for someone who comes from a graphical operating system background. Review collected by and hosted on G2.com.