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    Kickstart File on CentOS 6

    by Mitch April 9, 2014, 12:00 1 Comment

    Kickstart file is a great solution which enables you to automate installation of CentOS Linux, Red Hat Enterprise Linux and other Red Hat Linux derivates. Kickstart file is basically a single file containing answers to all the questions that you would normally be asked during a typical installation of your Linux system. Kickstart file can […]

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    Tagged with: centos6, centos7, kickstart

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    Working with YUM on CentOS 6

    by Mitch April 2, 2014, 14:06 0 Comments

    Yum or Yellowdog Updater Modified is a command line package management solution for Linux systems using RPM‘s like Red Hat Enterprise Linux, CentOS Linux, Fedora,… We can use yum to search, install, remove and check for additional information about RPM packages available to our Linux system. Yum works with local or remote repositories which are […]

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    Tagged with: centos6, centos7, rpm, yum

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    Ubuntu NFS Server – Ubuntu Server 12.04

    by Mitch March 25, 2014, 10:24 0 Comments

    NFS is short for Network File System. NFS server allows you to share a filesystem from a computer on the network to other computers on the same network. NFS is a server/client oriented protocol so one computer acts as a server and other computers (clients) connect to it. We will install and configure Ubuntu NFS Server […]

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    Tagged with: configure, filesystem, networking, nfs, ubuntu

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    Configure DRBD 8.4 on Ubuntu Server 12.04

    by Mitch March 17, 2014, 13:43 6 Comments

    Distributed Replicated Block Device is a great way to replicate filesystem over the network to another server or host. Distributed Replicated Block Device actually mirrors a whole block device over the network therefore it is often used for High Availability (HA) clusters. Distributed Replicated Block Device is actually a network based RAID 1. Distributed Replicated Block Device has […]

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    Tagged with: configure, drbd, install, ubuntu

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    Network Bonding on Ubuntu Server 12.04

    by Mitch March 13, 2014, 14:40 2 Comments

    If you are looking for network card redundancy you can start by confguring network bonding on your Ubuntu Server 12.04 machine. Network cards with network bonding can be joined in multiple configuration options (active/active, active/backup,…). We will configure our network cards in “active/backup” configuration. This is a network bonding fallback configuration which means if one […]

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    Tagged with: configure, networking, ubuntu

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    OpenVPN Server On Centos 6

    by Mitch February 28, 2014, 13:47 9 Comments

    Learn how to install and configure OpenVPN Server on CentOS 6 Linux. Do it the easy way and download an automated OpenVPN Server bash installation script.

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    Tagged with: centos6, networking, openvpn, security

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    Pnp4Nagios XML file not found Error – No Graphs

    by Mitch February 24, 2014, 13:14 0 Comments

    Are you getting “Pnp4Nagios XML file not found Error”? Read this post and fix this error. Learn how to get Pnp4Nagios performance data graphs working.

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    Tagged with: centos6, centos7, debug, error, nagios

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    How To Write Nagios Plugin – Bash Script

    by Mitch February 18, 2014, 15:54 4 Comments

    Learn how to write Nagios Plugin Bash Script with correct responses and exit codes for Nagios Server to understand.

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    Tagged with: bash, centos6, centos7, nagios

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    Install Spacewalk on CentOS 6

    by Mitch February 12, 2014, 14:47 25 Comments

    Learn Step-by-Step how to install Spacewalk open source Linux systems management solution. Do it the easy way, download an automated bash script.

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    Tagged with: centos6, configure, install, spacewalk

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    Install Nagios Core 4 on Ubuntu 12.04 LTS

    by Mitch January 23, 2014, 12:18 53 Comments

    Read this Step-by-Step guide on how to Install Nagios Core 4.0.2 on Ubuntu Server 12.04 LTS. Download an automated Ubuntu Install Nagios Core bash script.

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    Tagged with: install, nagios, ubuntu

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    Ubuntu Nagios 4 Init Script Fix

    by Mitch January 23, 2014, 11:43 13 Comments

    Fix Ubuntu Nagios 4 Init Script. Read this post and learn how to fix init script to work properly on Ubuntu Linux installations.

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    Tagged with: debug, nagios, ubuntu

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    Nagios Error: Could not open command file for update

    by Mitch January 23, 2014, 11:19 1 Comment

    This is how you fix Nagios Error: Could not open command file ‘/usr/local/nagios/var/rw/nagios.cmd’ for update on CentOS and Ubuntu Linux.

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    Tagged with: debug, error, nagios, ubuntu

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