help passive host hobbit

Evelyne Simon a écrit :

Hello,

 

hello,

I want to install a passive host hobbit like nsca from nagios

could you please describe what nsca exactly does ?
if you wish to get some infos from a host without setting a client on 
this host, you can
monitor from the server various network services, or use devmon for snmp 
polling.

 
How can I to do

 
thanks

 
**SIMON Evelyne**