NRPE

NRPE
Installed on	External MonitorSown-auth2, Sown-auth2-dev, Backup2, Backup3, Sown-buildroot, Sown-buildroot-dev, Sown-data1, Sown-gw, Suws-marconi, Sown-monitor, Sown-monitor-dev, Sown-monitor-new, Slartibartfast, Tunnelbroker, Sown-radius2, Sown-vms, Sown-vpn2, Sown-www
Was installed on
Website	https://exchange.nagios.org/directory/Addons/Monitoring-Agents/NRPE---Nagios-Remote-Plugin-Executor/details

SOWN installs Nagios Remote Process Executor (NRPE) on almost all its servers

Installation

On Ubuntu NRPE can be installed withe the following packages.

apt-get install nagios-nrpe-server nagios-plugins-basic nagios-nrpe-plugins 

Configuration

Configuration settings are installed to /etc/nagios/nrpe.cfg. Rather than modifying these files modifications should be made in /etc/nagios/nrpe_local.cfg. Historically other than the generic check definitions already in nrpe.cfg, all checks have been added to nrpe_local.cfg. However, new servers (such as Sown-radius2 and Sown-vpn2) check definitions have been broken down into a number of files found in /etc/nagios/nrpe.d/ directory.

Bespoke Check Scripts

If a check requires a bespoke script that does not come as part of the nagios-plugins-basic and nagios-nrpe-plugins scripts installed in /usr/lib/nagios/plugins/, then these should be installed in /usr/local/lib/nagios/plugins. These include:

• check_debsums: Checks that binary installed as part of Deb packages have not been modified.
• check_mail: Checks for email in inboxes on the host.
• check_packages: Check that Deb packages are up to date.
• check_reboot: Check whether the host needs to be rebooted due to Deb package upgrades or a need to fsck a disk.
• check_temp: Check the temperature of the CPU.