Query regarding negate wrapper

Satish Kumar P satishkumarp2k1 at gmail.com
Wed May 21 11:19:03 CEST 2008


Hi,

I have been trying to test and implement the negate wrapper in our Nagios
environment. It has worked successfully with all (except one) of the
plugins. 'negate' is not working as expected when I try to use with
check_http (with -u <URL> argument especially). When I actually run the
negate wrapper with check_http plugin against a web server (enabled with
SSL), it doesn't negate the state returned (only when the web server is
down).

When the web server is down (connect to socket times out) and check_http
plugin actually returns STATE_CRITICAL with time out error. But when negate
wrapper is used, surprisingly it doesn't negate the output, but instead
returns STATE_CRITICAL. I have included the commands and the output of the
commands as below:

prod-unix-mon04:/usr/lib/nagios/plugins# /usr/lib/nagios/plugins/check_http
-S -p 443 -u '/EdgeAuth/login.jsp' -H <server_name>
CRITICAL - Socket timeout after 10 seconds
prod-unix-mon04:/usr/lib/nagios/plugins# echo $?
2
prod-unix-mon04:/usr/lib/nagios/plugins# /usr/lib/nagios/plugins/negate
/usr/lib/nagios/plugins/check_http -S -p 443 -u '/EdgeAuth/login.jsp' -H
<server_name>
CRITICAL - Plugin timed out after 10 seconds
prod-unix-mon04:/usr/lib/nagios/plugins# echo $?
2

Our Nagios environment details are as follows:
Nagios Version : 3.0
Nagios Plugins Version : 1.4.11

Appreciate any quick help / suggestions to get around this problem. Thanks
in advance.

Thanks & Regards,
  Satish Kumar P
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