Monitor Linux

[JohnFLi]

I have a few linux machines that I have nagios monitoring.

I dont remember the process for setting up a client on the linux machines, and now I have more I need to add.

The only documentation I saw for linux machinces is using nrpe. I dont remember it being so many steps.

Is there another way to monitor a linux host other than NRPE?

[eloyd]

Yes. One of the easiest ways it to put the modules on the remote Linux box and then use check_by_ssh to check them from the Nagios host. This requires SSH keys with no passphrase, but can be set up in a few seconds, rather than the hour or so it might take to set up NRPE.

[cmerchant]

Another method of monitoring without an NRPE agent would be snmp. That process is documented here:

http://assets.nagios.com/downloads/nagi ... g_SNMP.pdf

[eloyd]

I would argue that monitoring via SNMP is more complex than monitoring via NRPE.

[JohnFLi]

Eloyd
When you say

One of the easiest ways it to put the modules on the remote Linux box and then use check_by_ssh to check them from the Nagios host.

What modules do you mean?

[eloyd]

You have to compile the Nagios plugins on the remote linux host (or compile them on a Linux host that has the same OS version and copy them). Things like check_cpu, check_disk, check_whatever. Those are the modules (or plugins). You can then call them via check_by_ssh on the Nagios host.

[JohnFLi]

Part of the install instructions I wrote for myself includes:

wget https://www.nagios-plugins.org/download ... 2.0.tar.gz

are those the plugins you mentioned?

[eloyd]

Yes!

[slansing]

Let us know how you get along with this, we're more than happy to answer any questions you have.

[JohnFLi]

All seems to be working well.
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