Nagios Support Forum

Have you walked through some of the "Common Problems" documented in the knowledge base: https://support.nagios.com/kb/category.php?id=93 Which operating system is NRPE installed on? What documentation did you follow when installing NRPE on RemoteMachine? Did you execute a service xinetd re...

Can you share the complete contents of check_oracle.pl? It may be that the script is writing to something other than stdout, which is what Nagios reads for status information.

You might also check the output of which perl executed from both root and the nagios user to make sure the script's shebang is pointing to the correct executable.

I can't even get check_mssql_sproc_parameters to connect to my SQL Server database: [root@nagios libexec]# ./check_mssql_sproc_parameters.pl -H 1.1.1.1,1433 -d database -u username -P password -p "get_gpa_stats_all @calendarID=57" -w 1 -c 2 DBI connect('Driver={ODBC Driver 11 for SQL Serve...

Unfortunately, I was unable to find a step-by-step guide. Some intuition and research will be needed. I unfortunately do not have a pfSense device to test against.

If you encounter specific problems at any of those steps, please share any console output produced. We would need to see what error those commands are producing to offer any insight.

Does this machine have regular access to the internet? Does it go through a proxy?

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.

1. How do I monitor the application url about the availability of the application? https://assets.nagios.com/downloads/nagiosxi/docs/Monitoring-Websites-With-Nagios-XI.pdf 2. How do I monitor the server with windows OS? There's a few options. One requires that you install an agent (NSClient++) on t...

Some documentation with various solutions: https://support.nagios.com/kb/article/nagios-xi-problems-with-$-signs-in-the-check-command.html https://support.nagios.com/kb/article/nagios-xi-special-characters.html I realize it says Nagios XI in the title, but much of the same solutions also apply to Na...

I would double check your main configuration settings to ensure log_external_commands is set to 1. More info: https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/configmain.html#log_external_commands I think NRDP just chucks them into the external commands spooler, which should be lo...