Ignoring reqest from unknown client

Hi, I am getting the subjected error when I try to authenticate. I am attaching the relevant files. btw is freeradius-X and radiusd-X same thing? ......My ubuntu doesnt seem to recognize radiusd command root@radius:~# radiusd -X The program 'radiusd' can be found in the following packages: * radiusd-livingston * xtradius * yardradius Try: apt-get install <selected package> radiusd: command not found Regards, Raheel