Install the NRPE server<\/p>\n Verify the service has started<\/p>\n Test a command you want to run. In my case, I wanted to check the \/dev\/mapper\/pve-data drive<\/p>\n Edit the NRPE configuration file<\/p>\n NAGIOS SERVER CONFIGURATION<\/p>\n Download the latest version of NRPE from http:\/\/exchange.nagios.org\/directory\/Addons\/Monitoring-Agents\/NRPE–2D-Nagios-Remote-Plugin-Executor\/details <\/code><\/p>\n Verify connectivity with the remote system from Nagios<\/p>\n We now have to make a command for Nagios to use NRPE<\/p>\n Now we can create the remote machine configuration file<\/p>\n Then restart the Nagios service and test<\/p>\n For CentOS\/RHEL (RPM) I ran the test from nagios (\/usr\/local\/nagios\/libexec\/check_nrpe -H IP.OF.Server) and was receiving an error: Change the allowed_hosts to only be the IP of the nagios server, not localhost, then service nrpe restart<\/p>\n Add to the nagios monitoring server NRPE Install and Configuration This assumes nagios has been installed and configured already. I needed to add nagios monitoring for some remote linux servers. I had only dabbled with nagios before and had setup PING only for testing if a server was up or down. But we now required service testing and HD monitoring. REMOTE … Continue reading Nagios Add NRPE<\/span> apt-get update<\/code>
\napt-get upgrade<\/code><\/p><\/blockquote>\napt-get install nagios-nrpe-server<\/code>
\nThis will ask if you want to install a bunch of extra packages – hit Y<\/em><\/p><\/blockquote>\nps aux | grep nrpe<\/code>
\nYou should see a command running from \/usr\/sbin\/nrpe<\/em><\/p><\/blockquote>\n\/usr\/lib\/nagios\/plugins\/check_disk -w 20% -c 10% -p \/dev\/mapper\/pve-data<\/code>
\nDISK OK<\/em><\/p><\/blockquote>\nnano \/etc\/nagios\/nrpe.cfg<\/code>
\nLook for allowed_hosts=127.0.0.1
\nChange to allowed_hosts=127.0.0.1,IPADDRESSOFNAGIOSSERVER
\nI then added the following command
\ncommand[check_disk]=\/usr\/lib\/nagios\/plugins\/check_disk -w 20% -c 10% -p \/dev\/mapper\/pve-data<\/code>
\nSave the configuration, then restart the service
\n\/etc\/init.d\/nagios-nrpe-server restart<\/code>\n<\/p><\/blockquote>\n
\nwget http:\/\/prdownloads.sourceforge.net\/sourceforge\/nagios\/nrpe-2.12.tar.gz<\/code>
\ntar zvxf nrpe-2.12.tar.gz<\/code>
\ncd nrpe-2.12<\/code>
\n.\/configure --enable-command-args<\/code>
\nmake all<\/code>
\nmake install-plugin<\/p><\/blockquote>\n\/usr\/local\/nagios\/libexec\/check_nrpe -H IP.OF.SER.VER<\/code>
\nIf this spits back NRPE v2.12 then you’re in business. If not, then it won’t connect.<\/p><\/blockquote>\nnano \/usr\/local\/nagios\/etc\/objects\/commands.cfg<\/code>
\nAdd the following
\ndefine command{
\n command_name check_nrpe
\n command_line $USER1$\/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
\n}
\nSave and close<\/p><\/blockquote>\nnano \/usr\/local\/nagios\/etc\/objects\/SOMENAME.cfg<\/code>
\n![\"\"](\"http:\/\/it.thelibrarie.com\/weblog\/wp-content\/uploads\/2011\/08\/nrpe_check.png\" "\\"nrpe_check\\"")
<\/a><\/p><\/blockquote>\n\/etc\/init.d\/nagios restart<\/code>
\n<\/a>\n<\/p><\/blockquote>\n
\nNavigate to http:\/\/pkgs.repoforge.org\/rpmforge-release\/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
\nFind the latest release for your distribution (ie RHEL6 and CentOS6 x64 is http:\/\/pkgs.repoforge.org\/rpmforge-release\/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm)
\nCopy the link location
\nOpen a command shell terminal window on your CentOS\/RHEL machine
\nrpm -Uvh http:\/\/pkgs.repoforge.org\/rpmforge-release\/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm<\/code>
\nyum install nagios-nrpe nagios-plugins-nrpe<\/code><\/p>\ndf -h<\/code>
\nfind the name of the drive you want to monitor (or drives, ie \/dev\/mapper\/vg_centos-lv_root)
\nnano \/etc\/nagios\/nrpe.cfg<\/code>
\nFind allowed_hosts=127.0.0.1
\nChange to allowed_hosts=127.0.0.1,10.4.0.253
\nFind command[check_hda1]
\nAdd a line underneath to be command[check_disk]=\/usr\/lib64\/nagios\/plugins\/check_disk -w 20% -c 10% -p \/dev\/mapper\/vg_centos-lv-root (same as df -h output)
\nVerify your command will work:
\n\/usr\/lib64\/nagios\/plugins\/check_disk -w 20% -c 10% -p \/dev\/mapper\/vg_centos-lv-root<\/code>
\nnano \/etc\/xinetd.d\/nrpe<\/code>
\nFind allowed_hosts=127.0.0.1
\nChange to allowed_hosts=127.0.0.1,10.4.0.253
\nnano \/etc\/services<\/code>
\nAdd nrpe 5666\/tcp # nrpe (follow along with the template)
\nservice nrpe restart<\/code>
\nAnd to have this automatically start:
\nchkconfig --add nrpe<\/code>
\nchkconfig nrpe on<\/code><\/p>\n
\nCHECK_NRPE: Error – Could not complete SSL handshake.<\/p>\n
\nProfit!<\/p>\n","protected":false},"excerpt":{"rendered":"