You could try running make with ld in debug mode: https://stackoverflow.com/questions/16710047/usr-bin-ld-cannot-find-lnameofthelibrary?rq=1 Like so: LD_DEBUG=all make all-recursive Bottom line is this isn't a Nagios Core or a mklivestatus problem, it's a problem with the environment on which you're...

I'll assume this is the plugin you're referring to: https://exchange.nagios.org/directory/Plugins/Security/check_ddos/details All this plugin does under the hood is run a netstat command and parse the output: netstat -antu | grep SYN_RECV | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -rn ...

You are sending a message from your Python code to the syslog input rule that comes pre-installed with Nagios Log Server. Problem is, your message is not syslog compliant ( RFC3164 ). The Nagios Log Server input rule is looking for a syslog formatted message, and you're sending it something complete...

Are you using Nagios Core or Nagios XI? You posted in the Nagios Core section, but mention Nagios XI. Check your mail server logs if you have access to them. Many mail servers straight up reject any messages sent via sendmail, in which case you may need to configure an SMTP server instead to "p...

"time_up": 1569920418, <-- How do I translate this into something meaningful? That looks like a Unix epoch to me: https://www.epochconverter.com/ Practically every main-stream programming language has standard libraries/tools for turning that into something human-readable. Also, practical...

I did a Python implementation of executing generic WQL queries a while back: https://github.com/mcapra/nagios-check_wmi It's not quite as feature rich as check_wmi_plus, but it does circumvent the "executing wmic on the back-end" problem. You could just as well feed an encrypted password i...

[/settings/external scripts/] PSCheckCertificate=cmd /c echo scripts\Check-Certificate.ps1; exit($lastexitcode) | powershell.exe -command - In your nsclient.ini, you've named the command PSCheckCertificate. That is what you should be passing as the command name -c via check_nrpe: #check_nrpe -H 172...

Depending on how it is done, I could see this creating some package conflicts, or issues with library dependencies, with future Nagios XI updates. But you could definitely offload the Nagios XI database needs to a a different server and avoid all of that: https://assets.nagios.com/downloads/nagiosxi...

Check the following configuration directives in your main Nagios Core configuration file to make sure they reflect your desired behavior: https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/configmain.html#retain_state_information retain_state_information state_retention_file retenti...

You might be able to get a similar effect with notes for a particular host/service: https://support.nagios.com/forum/viewtopic.php?f=7&t=48790&p=252672#p252672 I also get into modifying the source code to add custom elements to the status.cgi page: https://support.nagios.com/forum/viewtopic....