Linux partitioning with fdisk on CentOS 6. How to use fdisk on CentOS to partition your hard drive. Learn how to create, modify and delete partitions.
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How to mount NFS on CentOS 6
Learn Step-by-Step How To mount NFS share on CentOS 6! Want to do it the easy way? Download GeekPeek.Net NFS client mount bash script!
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This is a How To guide on how to fix “CHECK_NRPE: Error – Could not complete SSL handshake” error in Nagios. Read this post on how to fix this issue and how to make sure it is fixed!
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Configure NFS server on CentOS 6
Learn Step-by-Step How To configure NFS server on CentOS 6! Want to do it the easy way? Download GeekPeek.Net NFS server configuration bash script!
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How to configure Disk Encryption on CentOS 6.x? Read my Step-by-step guide or do it the easy way, download GeekPeek.Net Disk Encryption Bash script!
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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. […]
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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 […]
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CentOS Network Bonding
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 […]
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Pnp4Nagios CentOS install
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 […]
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Nagios 3.5.0 RPM install on CentOS 6
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 […]
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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 […]
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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 […]