The appliance is based on Gluster's virtual storage appliance, a company and product that Red Hat acquired in October last year in order to boost its cloud offerings. Red Hat has made smaller modifications, including changing CentOS for Red Hat...

"Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that...

That is not a user friendly experience. How about a bit of yum or rpm, find a repository that has what you want, find a repository that hasn't got a new version of something when you need an old version because you have something else that has a...

First we import the GPG keys for software packages: Then we enable the RPMforge and EPEL repositories on our CentOS system as lots of the packages that we are going to install in the course of this tutorial are not available in the official CentOS 6.2...

A compromise was therefore warranted and I opted, albeit reluctantly, to use mainly Windows based PCs for the time being. Linux file, mail and web servers are all robust and well-tested systems and you would be silly to select otherwise. We run ours on...

This means you can use only paravirtualization with Xen, but not hardware virtualization. As CentOS 6 is based on RedHat 6, and RedHat has dropped support for Xen in version 6, we need to get Xen from a third-party repository. We can enable the repo as...