Distributed Model

[AMacintosh]

We are looking to install a Nagios XI "salve" system in a client environment and have it send monitoring results back to the "master" Nagios XI. Is there documentation on such configuration and how does this work with the licensing? Does the "slave" need to be a full Nagios XI install or can it just be a Windows/Linux VM running some poller software?

Thanks,

[slansing]

Well, one way of doing this would be through NSCA inbound/outbound transfers. You would set up two XI servers, on internal/checker system which runs all of the checks, the second, would be a central server that gets passive updates of all of your host/service checks.

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

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

[BanditBBS]

Another way would be how I am doing it

I purchased an Intel NUC / 64GB mSata SSD / 4 GB Ram (US$365), installed Centos 6.5, nagios-plugins and nrpe.

I then only need one hole through the firewall, 22 for ssh. If I want to use NRPE then that's just one more, port 5666. I then use check_by_ssh or check_nrpe on the primary XI server to contact this middleman at the customer location and then check_by_ssh or check_nrpe runs another check that checks the customer servers.

If I need to explain any of this in more detail, just ask!

[lmiltchev]

Thanks, BanditBBS!

[AMacintosh]

With having the two Nagios XI and using NSCA how do the Nagios XI licenses work? Is it a single license?

[AMacintosh]

Would the distributed model allow us to overcome IP overlapping with having multiple clients using the same IP addresses?

Thanks,

[tmcdonald]

With having the two Nagios XI and using NSCA how do the Nagios XI licenses work? Is it a single license?

For each active Nagios XI installation, you would need a separate license.

Would the distributed model allow us to overcome IP overlapping with having multiple clients using the same IP addresses?

Probably. Nagios doesn't particularly care *where* a passive check comes from, as long as the credentials are correct. So if you have multiples slaves in multiple locations but they all appear to have the same IP, passive checks will work just fine but active will be difficult.

[AMacintosh]

Thank You. Do we need two Nagios XI installations for the distributed model or is there some collector software we can install on the slave instead?

[tmcdonald]

Nagios Core would work, doesn't *need* to be XI.