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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>Thanks, after reading the 3.x on passive_checks I get how to configure the service.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>Now, what would be the benefit of having active/passive checks enabled for a service? Say, it takes <5 minutes for Nagios to process my 80 hosts/600 services, if the service that I am looking to enable passive checks on as well is checked near the end of the 5 minute mark, wouldn’t it get an update much sooner having passive checks enabled?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>That said, NSClient sending the information to Nagios, logically this sounds like it should work like that, or based off:<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>check_result_reaper_frequency=5<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>max_check_result_reaper_time=30<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>So within a max of 30 seconds, I should be able to see if that service is UP/DOWN in the Nagios (or the op5 Ninja) interface?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>Are passive checks spread out like active checks on say, when Nagios starts?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>Basically, I want to have the alerting tight as possible, if I login to my IIS server and stop the IISADMIN service, I want to be alerted within those 0-30 seconds based on the reaper frequency.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>The box that I put Nagios on has enough CPU/RAM and fast enough subsystem I/O to build this type of configuration, but I want to make sure the logic above is correct.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>Thanks.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Cambria","serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Ryan C Ash [mailto:ryan.c.ash.lu4w@statefarm.com] <br><b>Sent:</b> June/24/2010 1:08 PM<br><b>To:</b> Nagios-Users<br><b>Subject:</b> Re: [Nagios-users] NSCA + NSClient<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>The short answer is yes, the service description you configure on the client nsca message needs to match that of the service description on your nagios server. If you want to migrate to a passive check you need to disable active checks and enable passive ones. You can leave the check command in place and incorporate freshness checks to force an active check if the passive fail. For me I don’t want to do active if passive fail. I would rather cut a ticket “service stale”. The nagios doc clearly shows how to configure passive service checks so give it a read. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>So you need “my_cpu_check” to be a service description so nagios knows what to match that incoming nsca message to. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Ash<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Mirza Dedic [mailto:mirde@oppy.com] <br><b>Sent:</b> Thursday, June 24, 2010 2:56 PM<br><b>To:</b> 'Nagios-Users'<br><b>Subject:</b> [Nagios-users] NSCA + NSClient<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have NSCA configured on my Nagios host, and enabled the necessary plugins on NSClient++ to support NSCA, configure XINETD appropriately inside my NSClient config I have:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[NSCA Commands]<o:p></o:p></p><p class=MsoNormal>my_cpu_check=checkCPU warn=80 crit=90 time=20m time=10s time=4<o:p></o:p></p><p class=MsoNormal>my_mem_check=checkMem MaxWarn=80% MaxCrit=90% ShowAll type=page<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>This is just for testing, I also have in my nagios.cfg:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>accept_passive_service_checks=1<o:p></o:p></p><p class=MsoNormal>accept_passive_host_checks=1<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In my NSClient Log I can see:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:modules\NSCAAgent\NSCAThread.cpp:205: Executing (from NSCA): my_cpu_check<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:NSClient++.cpp:1106: Injecting: checkCPU: warn=80, crit=90, time=20m, time=10s, time=4<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:NSClient++.cpp:1142: Injected Result: OK 'OK CPU Load ok.'<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:NSClient++.cpp:1143: Injected Performance Result: ''20m'=0%;80;90; '10s'=6%;80;90; '4'=0%;80;90; '<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:modules\NSCAAgent\NSCAThread.cpp:205: Executing (from NSCA): my_mem_check<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:NSClient++.cpp:1106: Injecting: checkMem: MaxWarn=80%, MaxCrit=90%, ShowAll, type=page<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:NSClient++.cpp:1142: Injected Result: OK 'OK: page file: 8.82G'<o:p></o:p></p><p class=MsoNormal>2010-06-24 12:48:44: debug:NSClient++.cpp:1143: Injected Performance Result: ''page file %'=45%;80;90; 'page file'=8.81G;15.6;17.59;0;19.5; '<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>What I want to know is, until now I have been using active checks, and for some servers I want to use passive_checks as well, so that the server updates Nagios.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If I have active checks defined within my Nagios installation such as:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>define service{<o:p></o:p></p><p class=MsoNormal> use generic-service<o:p></o:p></p><p class=MsoNormal> host_name van-mail01<o:p></o:p></p><p class=MsoNormal> service_description D - Disk Space<o:p></o:p></p><p class=MsoNormal> check_command check_nt_disk!D!98!99<o:p></o:p></p><p class=MsoNormal>}<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Can I modify this to also read from the passive_check, and what would my [NSCA Commands] definition look like? Does the first part have to reflect the service description? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>How does the information coming from the NSCA Client get mapped to my configured checks?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you.<o:p></o:p></p><pre>The Oppenheimer Group ---- CONFIDENTIAL<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited.<o:p></o:p></pre><pre><o:p> </o:p></pre></div></body></html>
<pre>The Oppenheimer Group ---- CONFIDENTIAL
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