/etc/systemd/system/multi-user.target.wants
Edit: /usr/lib/systemd/system/rsync.service (255B)
[Unit]
Description=fast remote file copy program daemon
Documentation=man:rsync(1) man:rsyncd.conf(5)
ConditionPathExists=/etc/rsyncd.conf
After=network.target
[Service]
ExecStart=/usr/bin/rsync --daemon --no-detach
[Install]
WantedBy=multi-user.target