<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <meta name=Generator content="Microsoft Word 12 (filtered medium)">  <title>Untitled Document</title> <style>  </style>  </head> <body bgcolor=white lang=EN-US link=blue vlink=purple> <div class=Section1> Using nagios event_handlers provided a couple benefits. <o:p></o:p> <o:p> </o:p> First, you can configure when to restart or correct the service. You can wait for the 2nd or 3rd SOFT non-OK status to perform the corrective action. This takes into account false-positives (as described in another thread today) and will avoid corrective actions when not needed.<o:p></o:p> <o:p> </o:p> Second, by using nagios event_handlers, you have a record of all actions in one place, and visibility to the issue.<o:p></o:p> <o:p> </o:p> <div> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'> From: Leandro Quibem Magnabosco [mailto:leandro.magnabosco@fcdl-sc.org.br] Sent: Thursday, September 03, 2009 8:19 AM To: Leonardo Carneiro Cc: nagios-users@lists.sourceforge.net Subject: Re: [Nagios-users] can nagios take some pro-active actions?<o:p></o:p> </div> </div> <o:p> </o:p> "Olá" Leonardo, Please note that Nagios uses mostly scripts to check services/disk/etc. and that those scripts that 'tell' nagios the status of the service/daemon/disk/etc. That said, I think you should not focus on Nagios to be proactive hence that it's scripts could be used for that. Let's say you have check_http configured to check <a href="http://www.example.com">www.example.com</a>. It would connect to <a href="http://www.example.com">www.example.com</a> on port 80 and report if it suceeds on sending a cmd or not . If something goes wrong, it would send a critical message back. This does not mean that the script is necessarily alerting nagios about the problem, it is alerting whatever called it in the first place. What I mean is, you don't *need* nagios to be in the middle of it and (IMO) you should not try to integrate it into this kind of solution because it would just make things more complicated. One simple way to implement that would be improving the scripts that comes with nagios-plugins. A "simple" if statement and some coding after it would do the trick. If the script already has the capability to check the status of something and be aware of the present status and take active measures . Interfere with the "function" that prints the message "CRITICAL" to make it, for eg., "ssh -T host /etc/init.d/apache2 restart". This email might be a little confusing cause I'm not thinking proper english this morning, but I would be happy to help you in our both mother language (portuguese) if you prefer. Good luck for now,<o:p></o:p> <div> <table class=MsoNormalTable border=0 cellspacing=5 cellpadding=0> <tr> <td valign=top style='padding:0in 0in 0in 0in'> <img border=0 width=160 height=89 id="_x0000_i1025" src="cid:image001.gif@01CA2C8B.2B064D30"><o:p></o:p> </td> <td valign=top style='padding:0in 0in 0in 0in'> <o:p></o:p> </td> <td valign=top style='padding:0in 0in 0in 0in'> Leandro Quibem Magnabosco Consultor de TI (48) 3251-5323 <a href="mailto:leandro.magnabosco@fcdl-sc.org.br">leandro.magnabosco@fcdl-sc.org.br</a> <a href="http://www.fcdl-sc.org.br">www.fcdl-sc.org.br</a> Rua: Rafael Bandeira, 41 CEP. 88015-450 Florianópolis - SC<o:p></o:p> </td> </tr> </table> "Este é um e-mail oriundo da Federação das Câmaras de Dirigentes Lojistas de Santa Catarina, e seu conteúdo é confidencial e destinado exclusivamente a seu(s) destinatário(s), não podendo ser copiado ou repassado,no todo ou em parte, a terceiros. Se esta mensagem foi-lhe enviada por engano, pedimos o obséquio de entrar em contato conosco. This is an e-mail from the Federação das Câmaras de Dirigentes Lojistas de Santa Catarina and its contents are privileged and confidential to the ordinary user(s) of the e-mail address(es) to which it was addressed, and no one else may copy or forward all or any of it in any form. If this e-mail was sent to you in error, please contact us."<o:p></o:p> </div> Leonardo Carneiro escreveu: <o:p></o:p> <pre>hello everyone.<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Started to play with Nagios a few days ago and i'm very excited with it. <o:p></o:p></pre><pre>I have a very small setup (2 linux server being monitored via npre by a <o:p></o:p></pre><pre>third linux server) and i'd wrote some bash scripts to monitor some of <o:p></o:p></pre><pre>the services that we run on those services (proprietary services, <o:p></o:p></pre><pre>non-standard ones like ssh, apache and that stuff).<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>I know Nagios can send sms, email and other things to warn <o:p></o:p></pre><pre>administrators about problems, but can Nagios take any action to fix the <o:p></o:p></pre><pre>problem, like restart the service if reach critical state, or restart <o:p></o:p></pre><pre>the service if the service stays critical for more than 5 minutes?<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>If yes, can someone just point me to the direction i should go? :)<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Tks in advance, and sorry about my poor english. I'm from Brazil.<o:p></o:p></pre><pre> <o:p></o:p></pre></div> </body> </html>