Install Nagios NRPE from source code on CentOS or Debian

In order to monitor internal resources of remote systems with Nagios you will need NRPE installed and configured on a client. There will be two pieces to install NRPE daemon and nrpe plugins. This particular install was tested with CentOS and Debian.

How to Upgrade from Debian 6 to Debian 7 Wheezy

Upgrading from Debian 6 – Squeeze to Debian 7 – Wheezy is a fairly straight forward process, but like with any upgrade things could go wrong an you have to make sure that recent backup or complete image in case of VPS is created before you start the process.