Set up self-healing services with systemd

It’s a fact of life. Systems, software, and services fail. Keeping users happy and the pager quiet is always at the front of every sysadmin’s mind. Therefore, knowing how to handle service failure quickly, efficiently, and (ideally) automatically is a hallmark of a capable (and well-rested) sysadmin. This article walks you through a few ways systemd can help you mitigate failure in your services.