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Nagios Core


rev.dennis

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Nagios is a great tool, especially for free.

Find your config

find / -name nagios.cfg

Test nagios against that config (below is where my nagios.cfg was located but change to where yours is)

nagios -v /etc/nagios/nagios.cfg

 

 

When your system is checking processes on a system and shows RSZDT and you are wondering what that means.

R = running, 
S = interruptible sleep (waiting to complete), 
Z = defunct ("zombie") process, 
D = uninterruptible sleep, 
T = stopped. 
Perhaps this is on the cluster (total) -- how many servers is it checking, unless it's on a single system (in which case there may be a problem).

 

Find what plugins are installed

ls /usr/lib64/nagios/plugins/

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