A while ago i wrote an article about Nagios migration to a new Linux server. This project also included migration of Pnp4nagios data. Since i was migrating Nagios to a new architecture (i386 -> x86_64) i had to convert RRD files to XML, transfer them to the new server and convert them back from XML to RRD. […]
DRBD® refers to block devices designed as a building block to form high availability (HA) clusters – Distributed Replicated Block Device. This is done by mirroring a whole block device via an assigned network. Distributed Replicated Block Device can be understood as network based raid-1. So, Distributed Replicated Block Device is actually a network based RAID 1. You are configuring DRBD […]
There are many situations in which someone would like to configure network bonding or channel bonding on a server… In most cases it is done for the network card redundancy. You can bond two network cards together in an “active/backup” configuration and in case one of your network cards fails all of the traffic will […]
PNP is an addon to Nagios which analyzes performance data provided by plugins and stores them automatically into RRD-databases (Round Robin Databases, see RRD Tool). It analyzes performance data provided by Nagios and stores them in RRD-databases. RRD Tool enables you to view performance and availability graphs for your Nagios services or hosts. PNP4Nagios Broker […]
What is BitLocker? BitLocker is a partition/hard drive encryption software. It is included by default in Windows Vista, Windows7 and Windows Server 2008 and R2. BitLocker provides a secure startup process when in use with a TPM crypto chip on the motherboard. The problem is that BitLocker only likes Microsoft Windows (go figure) and encrypting your Windows partition/hard drive if […]
Thanks to guys from Centos.alt.ru CentALT RPM Repository you can now install Nagios 3.5.0 RPM on CentOS. Nagios 3.5.0 RPM is available in their repository so all you need to do is add their CentALT and EPEL repo to your servers and run “yum install nagios”! Here is a Step-by-Step guide on how to get […]
Lately i was migrating my Nagios monitoring server to a new hardware and also a new CentOS version (CentOS 5.9 -> CentOS 6.4). It was a completely new server with new Linux OS installed and everything was configured perfectly. When i migrated Nagios data to a newly installed server and switched the IP addresses, i started […]
Linux on Android? Yes you can! Here’s how… This is a Review/How to of Android application called “Complete Linux Installer“. It is basically an application that allows you to run Desktop Linux distributions like Ubuntu, Debian, BackTrack, … on your Android device. Your Android device must be rooted! How do they do it? Linux on Android project brings Linux to […]
About My MK802 III It has been some time since i have bought MK802 III mini computer – I bought it in December 2012 to be exact. I also own a Philips 3000 series LCD TV 47PFL3007H for some time now. This is a “dumb” TV – not expensive, but it has a big 47″ screen and supports […]
About Nagios Configuration This is a quick manual on Nagios configuration files. We will be explaining which configuration files you need to edit to add hosts, services, contacts and groups. Learn how to configure your Nagios from Linux console and check the configuration for errors. In this Nagios configuration How To guide we will explain most of […]
