This will be a practical talk showing you how you can containerize/sandbox your applications without resorting to either LXC or Docker. You will learn how to use the combination of chroot, Linux::Unshare and Linux::Prctl to create simple yet powerful isolation for your applications. Finally you will also see how to enter in LXC/Docker containers without resorting to external applications. The main goal is to show you the steps you have to follow in order to make sure you build a good isolation.