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how to show passive checks not as disabled?
Posted: Wed Jul 02, 2014 3:30 am
by V3xX
Hi Guys,
is there a way to don't show passivce checks as disabled?
because our admins miss them often, because they're disabled.
would be nice if there is a solution to display in "X Unhandled Problems" but still have the passive check Icon.
Hope you guys can help me.
thanks in advance for your help
kind regards
V3xX
Re: how to show passive checks not as disabled?
Posted: Wed Jul 02, 2014 11:11 am
by slansing
I think we will need a bit more detail on this question, if your admins are missing updates to services because you have disabled passive checks on them, why not just re-enable them? If passive check results are disabled you will never see an update to that object unless it was from some sort of event handler posting data, or a freshness check being ran.
Similarly nagios would not know there is an issue if it never receives check results saying there is one. This is where I am a bit unclear, could you go a bit more into detail on what you are looking for or currently seeing that you want to change?
Re: how to show passive checks not as disabled?
Posted: Thu Jul 03, 2014 12:39 am
by V3xX
hi,
of course some more details:
i have passive checks (passive checks enabled, active checks disabled).
in Tactical Overview this checks are shown as disabled

- printscreen in Tactical Overview
- nagios1.PNG (3.8 KiB) Viewed 4680 times
now i search an option or something like this to show this check not in "X Disabled" but in "X Unhandled Problems".
because some of our admins don't give a f*ck on the "X Disabled", they just have a look on the "X Unhandled Problems".
is there an option like this?
is the question now clear? (I hope so)
Thanks in advance for your help
Re: how to show passive checks not as disabled?
Posted: Thu Jul 03, 2014 12:30 pm
by lmiltchev
These are different options:
"Unhandled Problems" are services "Not In Scheduled Downtime & Has Not Been Acknowledged & Active Checks Enabled".
"Disabled" are services with "Active Checks Disabled"
I don't believe you can change that. In Nagios XI, you can see how many services in a certain state are "active" or "passive", so I believe this is more intuitive.
Re: how to show passive checks not as disabled?
Posted: Fri Jul 04, 2014 1:52 am
by V3xX
ok, as there is no option for this, i got it by editing the tac.c file
Re: how to show passive checks not as disabled?
Posted: Mon Aug 25, 2014 5:22 pm
by moloko
Hi everyone,
I have the same request and I found, thanks to V3xX, that editing the tac.c file is the solution.
So I have 2 questions (maybe especially for V3xX ?) :
- Could you give me hint to find the exact line(s) where I can change what it needs to be changed ? (of course, I searched, and found especially one line that might be the one but I don't want to make a mistake...)
- Also, after that, I have to recompile Nagios right ? Or is there a way to only recompile this tac.c file ?
If Nagios need to be recompiled, should I just backup my conf files, recompile as if it's the first time and replace the new conf files with mines ? Or is there a more clever way to do it ?
Thanks a lot in advance for your help,
Nice regards,
Re: how to show passive checks not as disabled?
Posted: Tue Aug 26, 2014 9:35 am
by eloyd
Recompiling and reinstalling Nagios (but NOT the nagios config files) is easy enough. Just do the ./configure, make, make install commands again and you should be all set.
Make a backup first, but if you're just recompiling source, then your config files should not be touched by the install process.
Re: how to show passive checks not as disabled?
Posted: Tue Aug 26, 2014 3:46 pm
by moloko
Ok, so I'll try that.
Thanks a lot for your fast response.
Jeremy
Re: how to show passive checks not as disabled?
Posted: Wed Feb 07, 2018 8:11 am
by CSimpiFoN
moloko, or V3xX,
Can you let me know what exactly you changed in tac.c to achieve what you had wanted?
Thanks,
Tamas
Re: how to show passive checks not as disabled?
Posted: Wed Feb 07, 2018 11:12 am
by kyang
@CSimpiFoN,
What version of Nagios Core are you running? Also what OS?