check_http nagios plugin

Brian Kolaci bk at
Tue May 9 02:25:40 CEST 2017

I found the git repositories.  I compiled the latest and it still didn’t work.  Actually timed out all the time.
I was able to locate the 2.1 version in git, recompile that and it works again.  So there appears to be an issue with only the 2.2 version.

> On May 8, 2017, at 4:33 PM, Brian Kolaci <bk at> wrote:
> Hi,
> I just updated nagios from 3.3 on solaris to 3.5.1 on centos 6 linux.
> I’m noticing a crash in this version of check_http when called as follows:
> /usr/lib/nagios/plugins/check_http -I -p 5555 -N -a user:password
> Segmentation fault
> The page is rather large and takes a long time to download.
> When I remove the -N option, it then times out.  If I go with a web page, it does take minutes to load the page.
> Its a monitoring page for the ASSP mail scanning service.
> But it used to work…
> I installed this from EPEL.  So perhaps I need a newer version of the code.  If you can direct me where to get it, I can try downloading/compiling/install.
> the header coming back from the —help option is:
> check_http v2.1.4 (nagios-plugins 2.1.4)
> Copyright (c) 1999 Ethan Galstad <nagios at <mailto:nagios at>>
> Copyright (c) 1999-2014 Nagios Plugin Development Team
> 	<devel at <mailto:devel at>>
> Thanks!
> Brian

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