# Auto-restart Crashed Systemd Service

Systemd is a system and service manager for Linux operating systems. It is designed to be backward compatible with SysV init scripts, and provides a number of features such as parallel startup of system services at boot time, on-demand activation of daemons, or dependency-based service control logic.

Systemd Guide:  https://red.ht/2YCMEQl

Origin of this instruction: https://bit.ly/2YJ36hQ

TL;DR

```ini
[Unit]
Description=Your Daemon
After=network-online.target
Wants=network-online.target systemd-networkd-wait-online.service
 
StartLimitIntervalSec=500
StartLimitBurst=5
 
[Service]
Restart=on-failure
RestartSec=5s
 
ExecStart=/path/to/daemon
 
[Install]
WantedBy=multi-user.target
```

Set `StartLimitIntervalSec`, `StartLimitBurst`, `Restart`, and `RestartSec`.