i would troubleshoot this with a simple curl-command to check if your monitoring-server can even access the website. So just try curl <url> from the command line of the monitoring-server and see if you get a response. If you get a timeout there as well it will most likely be some kind of firewall-issue between your monitoring-server and the webserver.
You should also check if the webserver uses a non-standard port, e.g. not 80 or 443, then you need to specify the port explicitly.
You can find the binary for check_http in the site under ~/lib/nagios/plugins/check_http and you can run it from there. However, i would recommend troubleshooting with curl or wget and if that works going back to webinterface and configuring the check.
Hope that helps.
Finally found the correct path for the executable version of the plugin, thanks for that!
And I’ve found that the webserver listens on a non default port, so after I adjusted that, thanks to your curl suggestion, I now have an active check in CheckMK.
This topic was automatically closed 365 days after the last reply. New replies are no longer allowed. Contact an admin if you think this should be re-opened.