In this article we will install a monitoring solution on CentOS 7 consisting of CollectD, InfluxDB and Grafana. The first step is to install CollectD: yum -y install epel-release yum -y install collectd At the time of writing, this resulted
Linux network auto shutdown from APC UPS
The APC Smart-UPS series of UPS devices allows you to power servers and switches when there is a power failure in the grid. When the UPS is running on batteries, you want your servers to be notified and properly shutdown.
Creating a CentOS VM image for OpenStack
When you install OpenStack, you will get a very simple Linux VM image (Cirros) to test your installation. This works fine for testing purposes, but you will probably want to add some VM images for CentOS or Ubuntu. Although there
Installing latest version of Puppet on CentOS
The latest version of Puppet can be installed on CentOS by adding the Puppetlabs repository and then installing the official Puppet package: rpm -Uvh http://yum.puppetlabs.com/el/6/products/i386/puppetlabs-release-6-7.noarch.rpm yum install puppet This will install the latest official version of Puppet. Check the version
Installing a Storm cluster on CentOS hosts
Storm is a distributed, realtime computation system to reliably process unbounded streams of data. The following picture shows how data is processed in Storm: This tutorial will show you how to install Storm on a cluster of CentOS hosts. A
Installing Joyent command line tools on CentOS
A set of command line tools is available for the Joyent cloud computing platform which allows you to e.g. list images and create virtual machines. The installation of this set is a bit tricky on CentOS as it requires node.js
Installing Rackspace command line tools on CentOS
A set of command line tools is available for the Rackspace cloud computing platform which allows you to e.g. list images and create virtual machines. The installation of this set can be achieved with the following commands: yum install python-setuptools
Installing Azure command line tools on CentOS
A set of command line tools is available for the Windows Azure platform which allows you to e.g. list images and create virtual machines. The installation of this set is a bit tricky on CentOS as it requires node.js and
Installing Apache Libcloud on CentOS
Apache Libcloud is a standard Python library that abstracts away differences among multiple cloud provider APIs. At the moment it can be used to manage four different kinds of cloud services: servers, storage, loadbalancers and DNS. Here are the steps
Increasing CentOS LVM disk size on XenServer
The disk size of a CentOS virtual machine on XenServer can be increased with the following steps. The current VM contains one disk of 8 GB which is divided into a boot partition and an LVM partition: # fdisk -l