To install in CentOS 7 without dependence problems, just use “dnf install duplicati.rpm” instead of “rpm install”.
To run as a service, create the file /etc/systemd/system/duplicati.service
[Unit]
Description=Duplicati Backup software
[Service]
ExecStart=/usr/bin/mono /usr/lib/duplicati/Duplicati.Server.exe
Restart=on-failure
RestartSec=30
[Install]
WantedBy=multi-user.target
After that, just use:
systemctl start duplicati.service
systemctl enable duplicati.service