Nagios core, NCPA and discovering checks
Posted: Tue Nov 22, 2022 1:00 pm
Hi all,
I've got Nagios Core installed on a server and the NCPA package installed on a couple remote hosts. I got the example checks as listed in the documents working and would now like to go past that. My first question is how can I identify the checks that the NCPA package supports out of the box along with the syntax required to use them. I supposed that there must be some kind of disk check and through some searching and a bit of trial and error, got the following to work:
That gets me the root filesystem. I'd like to check other filesystems but the obvious modification to check '/boot' instead of '/' gets me
I tried other variants with similar results but won't waste space repeating them here. This is not a particularly productive way to get things done.
Is there a reference or guide that provides the commands available and the syntax required?
Thanks!
Edit.0: I found it. the API page served on the remote has all of the information in a format that is close enough to what is required in the config on the host running Nagios that even I can figure out the syntax.
As an aside, I find that UIs that change as options are selected can reduce discoverability because not all options are visible at any one time. Once discovered, I find this to be a pretty slick way to present the information but getting there was not obvious to me.
I've got Nagios Core installed on a server and the NCPA package installed on a couple remote hosts. I got the example checks as listed in the documents working and would now like to go past that. My first question is how can I identify the checks that the NCPA package supports out of the box along with the syntax required to use them. I supposed that there must be some kind of disk check and through some searching and a bit of trial and error, got the following to work:
Code: Select all
bash-5.0# libexec/check_ncpa.py -t '...' -P 5693 -H canby -M 'disk/logical//|'
OK: Used disk space was 65.30 % (Used: 12.26 GiB, Free: 6.51 GiB, Total: 19.60 GiB) | 'used'=12.26GiB;;; 'free'=6.51GiB;;; 'total'=19.60GiB;;;
bash-5.0# Code: Select all
bash-5.0# libexec/check_ncpa.py -t '...' -P 5693 -H canby -M 'disk/logical//boot|'
UNKNOWN: The node (boot/) requested does not exist. You may be trying to access the '/' node.
bash-5.0# libexec/check_ncpa.py -t ' ...' -P 5693 -H canby -M 'disk/logical/boot|'
UNKNOWN: The node (boot/) requested does not exist. You may be trying to access the '/' node.
bash-5.0# libexec/check_ncpa.py -t '...' -P 5693 -H canby -M 'disk/logical///boot|'
UNKNOWN: The node (boot/) requested does not exist. You may be trying to access the '/' node.
bash-5.0# Is there a reference or guide that provides the commands available and the syntax required?
Thanks!
Edit.0: I found it. the API page served on the remote has all of the information in a format that is close enough to what is required in the config on the host running Nagios that even I can figure out the syntax.
As an aside, I find that UIs that change as options are selected can reduce discoverability because not all options are visible at any one time. Once discovered, I find this to be a pretty slick way to present the information but getting there was not obvious to me.