Passive checks configuration using NSCA on NAGIOS

Hi,

We have configure nagios in our setup with active hosts services using NRPE. Now the requirement is to configure the services using passive checks with NSCA.

We have installed NSCA on some of our client hosts but stuck up at configuretion level.

Need help on how to configure passive checks for the following DB cheks.

  1. Databse status check
  2. Listener Status Check
  3. Oracle filesystem Check
  4. Databse Tablespace check
  5. Oracle alert log parsing/Check
  6. Host status check

Kindly help me on the above.