FreeRADIUS v3.0.12 Error to Start

Hello Dears, I have been installing freeradius v3.0.12 in a centos to prove it since I read that the founders recommended that version because it has many better ones. I admit that it has given me a lot of effort to get it works. I immediately wrote radiusd -XC to see that everything was fine, and so it was, but when I try "systemctl start / status radiusd" the service does not start. Some help? below i put the output. [root@centosLAB ~]# sudo systemctl status radiusd Unit radiusd.service could not be found. [root@centosLAB ~]# sudo systemctl start radiusd Failed to start radiusd.service: Unit not found. [root@centosLAB ~]# Thanks for advance, Jose