The Auto-Discovery feature is limited to monitoring "external facing" metrics, such as "is port 22 open" and "what's the RTT for a ping to this server" - it's not possible to make it auto-configure checks to get more "private" data such as RAM usage and Disk space free.
In the next version of Nagios XI, there will be more options, with a "Deploy Agent" wizard being developed which may lend itself better to this scenario.
The best routes at this time are as follows:
Option 1: Host Groups
What you could do is add all your hosts with a D drive to a Host Group called "With Drive D" and assign the active NCPA check "Disk Usage on Drive D" to that group (don't assign it individually to each host, only to the host group), then do the same for the rest of the drive letters.
The check would look something like this:
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H 127.0.0.1 -t 'some-shared-token-bla-blu-blarg' -P 5693 -M 'disk/logical/D:|' -w '70' -c '90'
Then on each of the monitored machines:
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# C:\Program Files (x86)\Nagios\NCPA\etc\ncpa.cfg (Windows)
# or /usr/local/ncpa/etc/ncpa.cfg (Linux)
[api]
community_string =some-shared-token-bla-blu-blarg
This necessitates having the
community_string (ncpa.cfg) being the same on each of the monitored hosts.
The advantage of this is that it centralizes the setup and management. If a host drops their Drive D:, simply remove them from the "With Drive D" group, and they'll no longer receive that check.
Option 2: Passive Checks
Another option is to use passive checks and have Nagios XI auto-setup hosts when it sees them.
One caveat here is if the Nagios XI server ever changes network location, each monitored host's configuration will need to be updated to send the passive check data to a new location.
The advantage here is that it's very easy to add new hosts, with almost no administration needed on the Nagios XI side of things.
Here's an example of how you'd do it. (Edit the config on the monitored Windows host)
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# C:\Program Files (x86)\Nagios\NCPA\etc\ncpa.cfg (Windows)
# or /usr/local/ncpa/etc/ncpa.cfg (Linux)
[nrdp]
parent = http://my-ip-of-nagios-xi-server/nrdp
token = some-shared-token-bla-blu-blarg
hostname = 192.168.x.x # set this to my (Windows) IP address
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# C:\Program Files (x86)\Nagios\NCPA\etc\ncpa.cfg.d\nrdp.cfg (Windows)
# or /usr/local/ncpa/etc/ncpa.cfg.d/nrdp.cfg (Linux)
[passive checks]
%HOSTNAME%|__HOST__ = system/agent_version
%HOSTNAME%|Disk Usage = disk/logical/C:|/used_percent --warning 80 --critical 90 --units Gi
%HOSTNAME%|CPU Usage = cpu/percent --warning 60 --critical 80 --aggregate avg
%HOSTNAME%|Swap Usage = memory/swap --warning 60 --critical 80 --units Gi
%HOSTNAME%|Memory Usage = memory/virtual --warning 80 --critical 90 --units Gi
%HOSTNAME%|Process Count = processes --warning 300 --critical 400
What you could do is use active checks for the common things like
CPU Usage and
RAM Usage, and
Drive C usage. See
Option 1 for a basic overview about simplifying the setup of active checks by applying them to entire host groups.
In this case, you'd make ONE host group in this case called "Windows Hosts" or something, add ALL your hosts to them, then add the common active checks
CPU Usage and
RAM Usage, and
Drive C usage to that host group (don't add them to the individual hosts, only to the host group). This necessitates having the
community_string (ncpa.cfg) being the same on each of the monitored hosts.
Then, for each of the monitored hosts with a D drive, configure a passive check on the monitored host to send that to Nagios XI.
It would look something like this (edit the config on the monitored Windows host):
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# C:\Program Files (x86)\Nagios\NCPA\etc\ncpa.cfg (Windows)
# or /usr/local/ncpa/etc/nrdp.cfg (Linux)
[nrdp]
parent = http://my-ip-of-nagios-xi-server/nrdp
token = some-shared-token-bla-blu-blarg
hostname = 192.168.x.x # set this to my (Windows) IP address
Code: Select all
# C:\Program Files (x86)\Nagios\NCPA\etc\ncpa.cfg.d\nrdp.cfg (Windows)
# or /usr/local/ncpa/etc/ncpa.cfg.d/nrdp.cfg (Linux)
[passive checks]
%HOSTNAME%|__HOST__ = system/agent_version
%HOSTNAME%|Disk Usage = disk/logical/D:|/used_percent --warning 80 --critical 90 --units Gi
If you use active checks, the hostname both in the passive check (
hostname in ncpa.cfg) and the Nagios XI host definition should match up to where Nagios XI needs to go for an active check (read: the IP address of the monitored host).