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Marius Kaizerman
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Nagios passive checks

I'm looking for a solution to monitor a few servers in a quite unique configuration, using Nagios:

There are 5 hosts that need to be monitored.
All of the hosts can communicate between themselves, but only one of them (let's call it the proxy host)
is accessible by Nagios.

Basically what I need is a way to monitor these hosts by using the "proxy host" (the one that is accessible by Nagios).

I've read about passive checks, but I didn't find a way to implement it for this scenario.

Any help will be appreciated.

Thanks!
LinuxNetwork AnalysisNetwork Management

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arnold

8/22/2022 - Mon
arnold

you need to install a nagios instance on the proxy server that will monitor them and report back to the main one.
For clarity: Presumably opening firewall routes/paths to allow main nagios to query/access these systems is out of the question.

main instance  <=>  nagios in restricted area <=> restricted are servers
Pasive checks <=> active checker

depending on the types of checks you need, configuring the proxy as a reverse proxy for ports that are then mapped to the restricted host/port....
Marius Kaizerman

ASKER
So a full Nagios installation is needed in the restricted area ?
Nothing else available, like a "Nagios proxy" ?

Thanks.
ASKER CERTIFIED SOLUTION
arnold

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arnold

It also depends on what it is you are monitoring.

If the restricted systems can use traps to send to the main nagios server, those trap can be used as passive checks. ......
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