Start service in low port whitout root

 

Locate the systemd file of that service:

pico /usr/lib/systemd/system/grafana-server

Add this 2 lines at service

[Service]
…
…
AmbientCapabilities = CAP_NET_BIND_SERVICE
CapabilityBoundingSet = CAP_NET_BIND_SERVICE

Run:
systemctl daemon-reload 

Restart service