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Distributed Nagios - duplicate IPs a problem?
Posted: Mon Jul 25, 2016 8:27 am
by eloyd
We'll be deploying a distributed (via mod_gearman) configuration for a customer that is all coordinated back to a central Nagios XI server. Our customer is monitoring things at dozens of remote sites, each with a local network that is likely duplicated between sites. Meaning, site A is 192.168.1.0/24, site B is 192.168.1.0/24, site C is 192.168.1.0/24, etc. It's hard for us to test this in our lab exactly, but is Nagios going to have an issue with the fact that multiple machines will appear to have the same IP addresses, even though they're on different networks (reached via mod_gearman workers at each of those sites)?
Re: Distributed Nagios - duplicate IPs a problem?
Posted: Mon Jul 25, 2016 11:56 am
by tmcdonald
Shouldn't be a problem at all. As long as mod_gearman is handling the checks, each IP will be locally-scoped to that gearman worker's network. Nagios doesn't really do any checking of the address, to my knowledge. Not sure why it would either, since you might need two hosts with the same address in a DR or similar setup where the secondary node takes over the IP of the first.
Re: Distributed Nagios - duplicate IPs a problem?
Posted: Mon Jul 25, 2016 12:05 pm
by eloyd
Yeah, just being paranoid. Thanks. Close. Forget.
Re: Distributed Nagios - duplicate IPs a problem?
Posted: Mon Jul 25, 2016 12:13 pm
by mcapra
Closing this up