[Check_mk (english)] FW: HTTP Active Check check

Marcel Schulte schulte.marcel at gmail.com
Thu Oct 29 22:14:13 CET 2015

Hi Charles,

at first: knowing your used OMD and Check_MK version could help debugging.

Generally you can check what's going on with active http checks by
navigating to your terminal console, become OMD siteuser and execute this
(according to your provided data):

~/lib/nagios/plugins/check_http -I PUTYOURHOSTIPHERE -u 'www.google.com'
--ssl -v

...param "-v" is for debugging output. If this does not work try the
command without "--ssl".


Nicholson, Charles (RIS-BNA) <cnicholson at vitalchek.com> schrieb am Do., 29.
Okt. 2015 um 20:40 Uhr:

> I'm trying to setup OMD with Check _MK and every attempt I make to contact
> a known website, internal or external fails with a connection_refused,
> unable to open TCP socket message.  I need to be able to complete HTTP
> checks similar to what I have already in Nagios with curl commands and find
> results.  I also need to test the check via server command line.  Can you
> explain what is going on?  Thank you.
> check_mk_active-http! -I $HOSTADDRESS$ -u 'www.google.com' -ssl
> HTTP CRITICAL - Unable to open TCP socket
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