Tag Archives: linux

Manage Test/Development Linux VMs with qcow2 and Libvirt

I often need to quickly revert virtual machines used for testing to a known good, vanilla state without doing anything by hand.  QEMU provides a great set of tools to help.  Here’s a simple tool to wrap all of it … Continue reading

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Trick out your Vim Editor

I’ve been a long-time vim user, dating back to when I figured out how to exit the damn thing.  Over the years I’ve tried various vimrc configurations, plugins and looks and even other editors but I’ve always come back to … Continue reading

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Automate Deployment of the ELK/EFK Stack with Ansible

I recently needed to completely automate deploying a full ELK/EFK stack and clients and didn’t find anything that suited my needs so I wrote the playbooks for this in Ansible.  This was my first real foray into automation with Ansible, … Continue reading

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OpenStack Summit 2016 – Trystack, the free OpenStack Sandbox

Following onto the previous Trystack.org talk at Devconf 2016, we presented at the 2016 Austin OpenStack Summit.  Following the same format as the previous talk we covered some exciting updates around RDO Liberty/Mitaka, OpenStackID integration, datacenter hardware and network upgrades/expansion … Continue reading

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Installing Fedora on the Raspberry Pi 3

Recently I setup CentOS on the Raspberry pi 2.  Now we’re going to be installing a modern Fedora 23 desktop on the Raspberry Pi 3.  I’ve used the Pi 2 instructions from chisight’s blog post so original credit goes to … Continue reading

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Build Secure VLAN Networks with ‘Shibby’ Router Firmware

I’ve been an ardent user of the Tomato Linux Open Source router firmware, specifically on the ASUS RT-N66U home routers using the ‘Shibby’ builds.  They let you take full advantage of enterprise (and kitchen sink) features on the broadcom-based residential … Continue reading

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Trick out your Terminal

Here are some useful ways to enhance your operating system shell environment.  The first will give you a permanent bash history that’s up to date and doesn’t require a logout to update command history, nor does it get reset.  The … Continue reading

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Installing CentOS on the Raspberry Pi

I recently acquired a Raspberry Pi 2 and wanted to run CentOS7 on it.  Here’s how I got CentOS installed and setup.  There are now official Raspberry Pi 2 CentOS ARMv7hl images available for your enjoyment.  Let’s get started.

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How to Manually Clean Indexes from Elasticsearch

In a previous post we covered getting started with the ELK stack (Elasticsearch, Logstash, Kibana).  Now we need to remove old indexes manually from an Elasticsearch datastore sorted by age.  We’ll be using the curator tool in a sandbox using … Continue reading

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Linux RAID Disk Replacement with Sans Digital 8-bay eSATA tower

There’s plenty of useful articles and guides on managing Linux software RAID floating around.  I recently had a disk failure in my 8-bay eSATA array and thought I’d add to the mix.  Here’s what I did, including some notes specific … Continue reading

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Logitech G933 Wireless Headset on Linux

I recently came into possession of a Logitech G933 wireless headset and started using it on my Linux work laptop for 100% of my audio and video conferencing needs.  There were a few issues out of the box on Linux … Continue reading

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Linux Laptop Power Tuning with Powertop and Friends

There’s an easy way to reduce power usage on Linux laptops using Intel’s Powertop utility.  Powertop polls your existing power usage and recommends tunings for your hardware.  I’ll show you how to quickly make the most of your battery life … Continue reading

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How to Manually Create/Tune an Elasticsearch Index

The ELK stack provides a very powerful set of tools that allow administrators and developers unfettered access and customizable log aggregation across any manner of server, application or device.  Recently I needed to stand up a new ELK stack on … Continue reading

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Urban Terror: Fun, Free FPS Game

Urban Terror is a free first person shooter based on the Open Source Quake III engine that advertises itself as a “Hollywood tactical shooter.”  It’s native for Linux, Mac and Windows like Enemy Territory, but uses realistic weapons, damage models … Continue reading

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Play Enemy Territory! (Linux, Mac, Windows)

Enemy Territory is a free, Open Source multi-player first-person shooter video game set during World War II. It was created in 2003 by Splash Damage and runs great on low-end hardware.  It features a well-designed class and progression system.  I’ve … Continue reading

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