That is not an RFC-3164 compliant message in which the PRI value is immediately followed by the timestamp portion of the HEADER. The '1' following the PRI is the RFC-5424 VERSION. The syslog input plugin for Logstash (and consequently Nagios Log Server) only supports RFC-3164 if you want formatted e...

Did you run make all in advance of make install ? The make all step is what extracts the bootstrap/angular/etc packages: [root@capra_nag nagios-4.3.4]# make all | grep bootstrap creating: angular-1.3.9/docs/components/bootstrap-3.1.1/ creating: angular-1.3.9/docs/components/bootstrap-3.1.1/css/ infl...

Which version of NSCA is being used? That's not an error message I recognize from either NSCA or Nagios Core.

Are there special scripts/binaries being used to handle the NSCA transmission? Something other than the official send_nsca client?

Those look like compiler warnings, not errors. Have they prevented you from leveraging this plugin in some way? If so, which operating system are you attempting to compile this plugin on? I didn't encounter any particular problems building the file you attached: [root@capra_nag tmp]# gcc -Wall check...

This is pretty easy to do with a bit of Bash: https://stackoverflow.com/questions/385408/get-program-execution-time-in-the-shell https://unix.stackexchange.com/questions/52313/how-to-get-execution-time-of-a-script-effectively Have the script store it's runtime in some temp file via redirection. You ...

libgd-dev appears to be the equivalent package in bionic (the docs you referenced haven't been updated for bionic yet), but I don't have an Ubuntu 18 machine to test against currently so I cannot verify that. Give this a shot: sudo apt-get install -y autoconf gcc libc6 make wget unzip apache2 php l...

Which version of Nagios Core are you using? Per the official documentation, what you've done should "just work": https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/customobjectvars.html If this is indeed a bug of some sort, it would also be useful to know exactly how you'r...

Twilio has a free-tier that I've successfully integrated into Nagios Core without too much trouble. Here's what I'm using as my notification handlers (sanitized of my credentials of course): define command { command_name notify-service-by-twilio command_line curl 'https://api.twilio.com/2010-04-01/...

There are plugins available that can translate this protocol into Nagios check results, though I've never used them: https://exchange.nagios.org/directory/Plugins/Hardware/Others/check_modbus/details https://exchange.nagios.org/directory/Plugins/Network-and-Systems-Management/Check_modbus_tcp/details

BPI is probably the easiest way to handle serverless architectures in Nagios XI: https://assets.nagios.com/downloads/nagiosxi/docs/Using_Nagios_BPI_v2.pdf In which case, you would set your "group health" thresholds to require 100% health since any child service going down brings the whole ...