Category: Linux

Windows (CIFS) fileshares using GlusterFS and CTDB for Highly available data

This tutorial will walk through the setup and configuration of GlusterFS and CTDB to provide highly available file storage via CIFS. GlusterFS is used to replicate data between multiple servers. CTDB provides highly available CIFS/Samba functionality. Prerequisites: 2 servers (virtual or physical) with RHEL 6 or derivative (CentOS, Scientific Linux). When installing create a partition for root of around 16Gb,… Read more →

Raspberry Pi Wildlife Camera

A while ago I built a Raspberry Pi based nature camera, sometimes known as a trail camera. Normally I cover most of my projects on here but this one has been a little different as it was featured in this months Linux Voice magazine. For this very reason I won’t feature a write-up here, just a few images and videos… Read more →

Installing dig on a CentOS or Red Hat machine

Gone are the days where we install nslookup for DNS resolution testing, the new(ish) kid on the block is dig. Although maybe not installed by default, it can be installed quite easily from yum, however it comes bundled with a number of tools so the package name isn’t all that obvious. [root@server ~]# yum install bind-utils Will do the trick, now… Read more →

Import regular kvm image to oVirt or RHEV

I recently replaced a couple of servers within a friends business with an oVirt virtualisation setup, I’m really pleased with the whole configuration which consists of a single engine host and 2 hypervisor nodes, the storage is shared over the 2 hosts with glusterfs. The guests which run on the platform replace the services that ran separately on a couple… Read more →

New projects: Pi’s and Arduinos

Recently I’ve been working on several new projects, all of which use either a Raspberry Pi or an Arduino. Site-To-Site VPN A friend of mine recently opened a new satellite office, and as part of his day to day work had a requirement to connect the two together so resources on either side could see each other. Site-to-site VPN I… Read more →

New hosting for my blog

After one of my LUG colleagues mentioning about the BigV service from Bytemark I just had to try it. So today I prized open the wallet and set myself up an account. For £10+VAT per month you get a VM, it comes with 25gb HD space, 1GiB RAM, 1CPU (2.2ghz AMD it seems)  and 200gb bandwidth per month. All seems… Read more →

Why I’m uninstalling Ubuntu

I wouldn’t normally write about this kind of move, but I’m in a position where I feel I have to. A little over a year ago I made a decision to move from Fedora to Ubuntu, it wasn’t a decision that was easy after all I have been using Fedora since its first release, and Red Hat since around version… Read more →

Linux Outlaws Live in Liverpool

There are a number of events in my geek calendar I really look forward to throughout the year, most of them centre around a particular group of people too.  This year an extra event has turned up early in the list, Linux Outlaws Live, or LOL as it seems to be more affectionately known. The live show, celebrating the 300th… Read more →