<p>$ cat /etc/debian_version<br>
8.2<br>
$ /usr/lib/nagios/plugins/check_http -V<br>
check_http v2.1.1 (monitoring-plugins 2.1.1)<br>
$ /usr/lib/nagios/plugins/check_http -S -H <a href="http://www.monitoring-plugins.org">www.monitoring-plugins.org</a><br>
HTTP OK: HTTP/1.1 200 OK - 5528 bytes in 0.125 second response time |time=0.125402s;;;0.000000 size=5528B;;;0<br>
$ /usr/bin/time curl <a href="https://www.monitoring-plugins.org">https://www.monitoring-plugins.org</a> -k -o /dev/null -s<br>
0.01user 0.00system 0:00.14elapsed 16%CPU (0avgtext+0avgdata 4140maxresident)k<br>
0inputs+0outputs (0major+1174minor)pagefaults 0swaps</p>

<p>I cant see any problem here. I tested check_http against several apache (2.2,2.4) and nginx on wheezy and jessie. It looks like it's related to you apache2 installation/configuration.</p>

<p>With my Debian monitoring-plugins maintainer hat on, Jan.</p>

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