How to install Nagios 4 and Nrpe 2.16RC2 to monitor your servers on Ubuntu 14.04

Installing Nagios 4
This document contains the information and steps to proceed to install and configure the Nagios monitoring system on an Ubuntu Server 14.04 using the Nrpe 2.16RC2.

Nrpe 2.16RC2 is still not at its last (or defined stable) version but, tests shows that this release does not have particular issue.
This plugin is a great improvement since it provides an increase of security thanks to the use of server-client certificates and an improvement of the encryption system.

For an easy view on the configuration file, some samples of the same are inside this document.

In details, these are the main points of the document:
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CentOS 6.5 configuration: LAMP – NFS – Heartbeat and troubleshooting

I wrote this document with the intent to keep track of the project that I recently followed.
Working mainly with Microsoft platform is easy to forget how to setup a Linux, and in this case, a CentOS machine. Something that should not happen!
Here I explain the steps to build a stable website with the use of a shared drive, which is the root of the website, and a program called Heartbeat which allows the machines to work even when a fault of 1 of them is found. Continue reading

The Simpsons: Tapped Out… Hacked on Android

This game is amazing! I start with saying that I really love it and I’ve been playing for 5 months now..
But.. It takes too much in my opinion to build buildings and not everybody wants to spend money for tiny stuff of the game..

This hack I’m going to explain works only with Android devices because I am going to use another program which can be found on the Google Play, it is Gamekiller, downloadable from here. Continue reading