Nagios Error: Check command not defined anywhere!

Error: Service check command 'check_disk_remote' specified in service 'check_disk_remote' for host 'Nagios-CPT' not defined anywhere!







Location check:

** Plugin located in /usr/local/nagios/libexec/
** Commands.cfg --> is the service defined?
** services.cfg --> is the service defined to be used with a host?