<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="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> <o:p> </o:p> >You need to install nagios-plugins-nrpe, and nagios-nrpe<o:p></o:p> ><o:p> </o:p> >When you call a plugin through linux, you use check_nrpe on the nagios host machine and that calls the plugin on the remote box, so the plugin must exist.<o:p></o:p> ><o:p> </o:p> >Nagios-nrpe is the required service that must be running, and your /etc/nagios/nrpe.cfg will be the file that you can give variables for the plugin calls. Nrpe needs to be >running on the remote box.<o:p></o:p> ><o:p> </o:p> >So if you wanted to check_disk on the linux box, you want nrpe on, and chkconfig it on so it always starts. Open nrpe.cfg and edit the check_disk check to your liking, >make sure nrpe.cfg includes the ip address of your Nagios Host box to allow check_nrpe to call it.<o:p></o:p> ><o:p> </o:p> >To get the variables you can add, you’d do ./check_disk –help in the plugins directory (something like /usr/lib/nagios/plugins)<o:p></o:p> ><o:p> </o:p> >I’m rather new as well, but that’s my understanding.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> “So, I would run the nagios-plugins-nrpe rpm on the remote machines (all are CentOS 3.3, except for one FC2)? Are there other plugins I have to add? What would I do to the FC2 box (there is a Dag nagios-plugins-nrpe rpm for FC2)? Sorry for my denseness.”<o:p></o:p> <o:p> </o:p> I believe I used the dag nagios plugins rpm for FC2, I think I used that successfully for FC3 as well, but if there’s no dag rpm, just grab the gz. <o:p></o:p> <o:p> </o:p> Run it on all your hosts that are linux, and make sure you run the nrpe as well, and setup /etc/nagios/nrpe.cfg with allowed_hosts listing your nagios host.<o:p></o:p> <o:p> </o:p> Host you want to monitor – Install NRPE and Plugins.<o:p></o:p> <o:p> </o:p> Chkconfig Nrpe on. Edit Nrpe to suit your network.<o:p></o:p> <o:p> </o:p> Start nrpe service.<o:p></o:p> <o:p> </o:p> Run test check from your Nagios host maching.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> </div> </body> </html>