Natural Born Coder

Category: Linux

  • Ubuntu Install – GRUB on the USB

    —

    by

    doozer
    in

    It seems like only yesterday that I was installing Red Hat from floppy disks. Fortunately things have moved on a bit and now I generally install Ubuntu from a USB stick. The other day though I ran into a new problem. At the end of the process the installer asks if you’d like to install…

  • Simpler KVM Network Configuration

    —

    by

    doozer
    in ,

    In the series of articles I wrote discussing the installation of KVM on Ubuntu I spent articles 2 and 3 discussing the network set up but it occurred to me that it was actually an unnecessarily difficult set up and so in this article I’ll discuss a simpler KVM network configuration set up.

  • KVM Migration Problems

    —

    by

    doozer
    in ,

    I recently experienced some KVM migration problems while moving virtual machines from my development laptop to my server. The laptop has a Core i7 processor but the server is running a Core i5 and, as you might expect, they have different features available. In this article I’ll explain what I did to fix my KVM migration problems.

  • SonarQube with Jenkins Configuration

    —

    by

    doozer
    in , ,

    Configuring SonarQube with Jenkins while running Maven builds sounds like it should be a breeze but, I at least, found myself scratching my head wondering how to make it work. I’d got SonarQube installed and running and I had Artifactory installed and ready to go. Jenkins was running builds fine but getting SonarQube with Jenkins working…

  • SonarQube on Ubuntu 14.04

    —

    by

    doozer
    in , ,

    SonarQube (previously just Sonar) is an open source code quality tool. In this short series of articles I’ll be installing and configuring SonarQube on Ubuntu 14.04. Installing SonarQube on Ubuntu is just part of a wider continuous integration (CI) server build that I’ve been performing. Previous articles include installing Artifactory and Java 8.

  • Migrating from Nexus to Artifactory

    —

    by

    doozer
    in , ,

    I thought migrating from Nexus to Artifactory would be a seriously painful process but it actually turned out to be quite simple. My biggest concern was maintaining my release history as it would be impractical to try and move hundreds artefacts by hand. The article below describes the process I used.

  • Java 8 on Ubuntu 14.04

    —

    by

    doozer
    in ,

    Getting Java 8 on Ubuntu 14.04 is a topic that is very hotly debated (1, 2, 3, etc, etc) but it looks like this important piece of software won’t officially make it into Ubuntu 14.04 in any time frame that is useful – I’m writing this May 2015, OpenJDK 8 was released March 2014 and…

  • BIND Query Refused

    —

    by

    doozer
    in , ,

    I’ve just set up a new BIND DNS server for a new network. I configured the network in a way I’ve not done before which was to have the servers on a different subnet to the regular machines and other devices. I prefer this set up but it has resulted in me having to do…

  • Increasing the Size of a qcow2 Image Under KVM

    —

    by

    doozer
    in ,

    I like to keep my disk images as small as reasonably possible when running virtual machines as I find it just generally makes life easier. Combined with the fact that if you are running LVM it’s easy to expand the disk there’s really no excuse for over specifying on the disk at install time. This…

  • Installing Webmin on Ubuntu 14.04 and 14.10

    —

    by

    doozer
    in

    This is a quick little article showing you how to install Webmin on Ubuntu 14.10 and 14.04 (these instructions should work with older and newer versions as well).

  • Fixing the Default KVM Host Firewall

    —

    by

    doozer
    in ,

    I recently installed KVM on my laptop and all was going reasonably well until I tried to connect to the internet from one of the guests. For some reason that I couldn’t fathom at first the guest couldn’t talk to the internet and the local network couldn’t talk to the guest. This surprised me because…

  • KVM Offline Migration

    —

    by

    doozer
    in ,

    As a follow on from the earlier series of articles on setting up KVM on Ubuntu 14.04 this article discusses performing an offline migration of a guest. Why offline rather than online? Online migration is fairly simple if you have shared storage but it starts to get awkward without. From what I’ve read an online…