Dynamic IP host monitoring

[progressive.nagiosXI]

Hii,

How we can monitor any host whose IP is not static??

Please suggest

[mcapra]

Two options that come to mind:

Have the host submit passive checks to Nagios XI. NCPA and NSClient++ both have native options for passive checks.

Leverage a DNS record for the host.

[tacolover101]

to add on to what @mcapra mentioned, a dynamics DNS provider such as dyndns or no-ip should work for this.

[dwhitfield]

Thanks @mcapra and @tacolover101!

As far as NSClient goes, here's the doc: https://assets.nagios.com/downloads/nag ... Checks.pdf

https://assets.nagios.com/downloads/ncp ... arison.pdf may also be useful.

[progressive.nagiosXI]

With this we have some question,

1 - How do we monitor host up/down
2 - If agent stops giving data how do we get notified for the same ?
3 - if we are monitoring two host with agent and if the swap their IP with themselves How nagios going to identify that

[dwhitfield]

1. Using DNS is the easiest from the nagios side
2. If you use DNS, then just use a normal active check.
3. https://exchange.nagios.org//directory/ ... IP/details talks about external IPs, but I don't see why you couldn't use it for internal IPs.

Setting up DNS really depends on your environment, but is outside of the scoop of support anyway. If you are in a Windows environment, https://technet.microsoft.com/en-us/lib ... s.11).aspx may be of some use.