Hi, Thank you Richard. I get it. I write this mail to show everybody how I get to use the negative binary file (if someone don't know how to do it, here you have) As Richard tell us, you only get the negative result on the Nagios console. If you launch the ./negate check_xx, you always get the check_xxx result, not the negative. So, you have to put the command 'wrapped' in the negate command in the nagios configuration like that, in the checkcommands.cfg, for example: In this example, I use the check_http command. define command{ command_name check_http_negate command_line $USER1$/negate "/opt/nagios/libexec/check_http -H 10.190.8.xxx -p 80 -u "url" -s "string"" } Remember that you have to indicate the complete path of the command (in this case, check_http), and put everything between " " Good Luck!! And thank you very much, Richard Yolanda <div>2007/1/30, Richard Luys-Nagios User <<a href="mailto:nagios@thebug.demon.nl">nagios@thebug.demon.nl</a>>: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Tue, 30 Jan 2007 10:48:00 +0100, Yolanda Santos <<a href="mailto:iamyolanda@gmail.com"> iamyolanda@gmail.com</a>> wrote: > <<a href="mailto:nagios-users@lists.sourceforge.net">nagios-users@lists.sourceforge.net</a>>Hi, > > I have tried to use the negate binary file, but it doesn't work. > Am I doing something wrong? Hello Yolanda, No, your not doing something wrong, your just confused ;-) let me explain: The OK you see is the exit status of the check_http plugin, which is indeed: OK. If you check the status of the negate with echo $? (directly after you issued the command) you should see a response of '2', which is the exitstatus known as CRITICAL. Nagios interprets the negate exitstatus and not the exitstatus of the command you 'negated'. Just put your command 'wrapped' in the negate command in your nagios configuration and it will show up as a CRITICAL when the plaintext-error page is shown. Good Luck! Richard > > I check: > > ./check_http -H 10.190.8.xxx -p 80 -u "url" -s "ERROR" > > And I get an OK > > Then, now I want the opposite, so I do: > > ./negate "check_http -H 10.190.8.xxx -p 80 -u "url" -s "ERROR"" > > And I get an OK again. If I add the complete path: > > ./negate "/opt/nagios/libexec/check_http -H 10.190.8.xxx -p 80 -u "url" > -s > "ERROR"" > > I continuous get an OK... > > What is wrong? > > Thanks -- Using Opera's revolutionary e-mail client: <a href="http://www.opera.com/mail/"> http://www.opera.com/mail/</a> </blockquote></div>