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Check_TCP Plugin - Windows Server 2019
Posted: Mon Oct 18, 2021 11:43 am
by DerekNagiosXI
Good Afternoon,
Have the check_tcp on the windows server under C:\Program Files (x86)\Nagios\NCPA\plugins
Running into error -
UNKNOWN: An error occurred connecting to API. (HTTP error: '500 INTERNAL SERVER ERROR')
Here is $ARG1$ parameter - -t 'xxxx' -P 5693 -M 'plugins/check_tcp' -q 'args=-H
[email protected] -p xx'
I believe my context in $ARG1$ needs to be modified, this plugin is working great on linux servers.
I do know that for the linux servers, i have to run chown nagios so my question is, could my error be due to permissions for the windows server?
Thanks for your help.
Re: Check_TCP Plugin - Windows Server 2019
Posted: Tue Oct 19, 2021 11:42 am
by pbroste
Hello
@DerekNagiosXI
Thanks for reaching out on 'check_tcp' plugin 500 error condition.
Want to verify that we are able to view the 'ncpa' web console:
Code: Select all
https://yourwindowsserver2019:5693
For raw api results:
Code: Select all
curl -k https://yourwindowsserver2019:5693/api/plugins/check_tcp.exe?args=-H localhost&args=-p 5693&args=-c 22&args=-w 3
To verify from Linux command line from your Nagios XI instance:
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H yourwindowsserver2019 -t welcome -M 'plugins/check_tcp' -q 'args= -H hosttocheckhere -p 5693'
Allow hosts in the 'ncpa.cfg' configured to allow found in the /nagios/ncpa/etc/ directory:
allowed_hosts = xxx.xxx.xxx.0/24
For testing purposes, I gave "everyone" full access permissions on the '/plugin/check_tcp'.
Let us know how things look,
Perry
Re: Check_TCP Plugin - Windows Server 2019
Posted: Wed Oct 20, 2021 8:32 am
by DerekNagiosXI
pbroste wrote:Hello
@DerekNagiosXI
Thanks for reaching out on 'check_tcp' plugin 500 error condition.
Want to verify that we are able to view the 'ncpa' web console:
Code: Select all
https://yourwindowsserver2019:5693
For raw api results:
Code: Select all
curl -k https://yourwindowsserver2019:5693/api/plugins/check_tcp.exe?args=-H localhost&args=-p 5693&args=-c 22&args=-w 3
To verify from Linux command line from your Nagios XI instance:
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H yourwindowsserver2019 -t welcome -M 'plugins/check_tcp' -q 'args= -H hosttocheckhere -p 5693'
Allow hosts in the 'ncpa.cfg' configured to allow found in the /nagios/ncpa/etc/ directory:
allowed_hosts = xxx.xxx.xxx.0/24
For testing purposes, I gave "everyone" full access permissions on the '/plugin/check_tcp'.
Let us know how things look,
Perry
Thank you for the reply. Confirmed I am able to view NCPA web console.
Updated allow hosts in the ncpa.cfg and error message changed to
UNKNOWN: An error occured connecting to API. (HTTP error: '403 FORBIDDEN')
Verified token is correct.
Tried redownloading check_ncpa and replacing on my server. Please advise.
Re: Check_TCP Plugin - Windows Server 2019
Posted: Wed Oct 20, 2021 10:16 am
by pbroste
Hello
@DerekNagiosXI
Thanks for following up, what do you get for results on the command line and the option to add -v or --verbose to see more information.
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H yourwindowsserver2019 -t welcome -M 'plugins/check_tcp' -q 'args= -H hosttocheckhere -p 5693' --verbose
Or if the plugin is in your '/nagios/libexec/.' on your server:
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H yourwindowsserver2019 -t welcome -M 'check_tcp' -q 'args= -H hosttocheckhere -p 5693' --verbose
Let us know the results,
Perry
Re: Check_TCP Plugin - Windows Server 2019
Posted: Thu Oct 21, 2021 10:07 am
by DerekNagiosXI
Tried off the server, got
An error occurred:
UNKNOWN: An error occured connecting to API. (HTTP error: '500 INTERNAL SERVER ERROR')
Re: Check_TCP Plugin - Windows Server 2019
Posted: Thu Oct 21, 2021 1:14 pm
by pbroste
Hello
@DerekNagiosXI
Typical reasons to see 500 errors include; permissions, coding, and perhaps redirect issues.
To further dig let's verify:
Date and time are the same across.
Update the 'nagios' User Account:
Code: Select all
chage -I -1 -m 0 -M 99999 -E -1 nagios
Verify the user and the 'check_ncpa.py' command:
Results:
root
List permissions:
Code: Select all
ls -l /usr/local/nagios/libexec/check_ncpa.py
Results:
-rwxr-xr-x. 1 apache nagios size mon day hh:mm /usr/local/nagios/libexec/check_ncpa.py
Switch to nagios User Account:
Run with 'nagios' User Account:
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H yourhostyouarecheckinghere -V
Results:
check_ncpa.py, Version 1.2.4
We verified the 'check_ncpa.py'; now lets check via the Windows command that
'plugins/check_tcp' <yourargshere> passes. Also, test by adding 'Everyone' with full control.
Once verified that the 'check_ncpa.py' and the 'check_tcp' each pass when execute separately. Then integrate the commands and run:
Code: Select all
/usr/local/nagios/libexec/check_ncpa.py -H yourwindowsserver2019 -t welcome -M 'plugins/check_tcp' -q 'args= -H hosttocheckhere -p 5693' --verbose
Thanks,
Perry
