Best Pickins’
- Block Advertising on your Network with Pi-hole and Raspberry Pi
- Installing Fedora on the Raspberry Pi 3
- Automate Deployment of the ELK/EFK Stack with Ansible
- Build Secure VLAN Networks with 'Shibby' Router Firmware
- Easy Noise Suppression with RNNoise
- Fun and Profit with Reverse SSH Tunnels and AutoSSH
- Using VDO on CentOS/RHEL7 for Storage Efficiency
- How to Remove RPM Package GPG Keys
- Linux Laptop Power Tuning with Powertop and Friends
- Automate RPM Builds from Git Sources using COPR
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Category Archives: open source
Quick Fix for WordPress Table Text Wrapping
WordPress enforces sensible defaults for views and text wrapping that addresses most blogging purposes. Sometimes you want to work around these defaults. Recently I needed to expand text-wrapping behavior for tables to not break apart words to fit the default … Continue reading
Create an HD Gaming Capture/Streaming Setup with Linux
I recently created a dedicated game recording/streaming setup using OBS Studio on Fedora Linux. This lets me capture and stream real-time full 1080p video and audio from another machine playing video games. Read on for the hardware and setup details, … Continue reading
Automate Nagios Monitoring with Ansible
Infrastructure monitoring is important and there’s lots of tools for it. I’m fond of Nagios – it’s very mature and customizable but it’s also a giant pain in the ass to setup. Here’s how to save time deploying and managing … Continue reading
Posted in open source, sysadmin
Tagged ansible, automation, devops, idrac monitoring, ipmi, linux, monitoring, nagios, snmp, supermicro monitoring, sysadmin
35 Comments
Fun and Profit with Reverse SSH Tunnels and AutoSSH
Sometimes you just need to get to things remotely. Those things might be behind an unbudging firewall with no way to forward proper ports for remote access, or perhaps you just want it setup access to resources this way. I … Continue reading
Secure, Distributed Password Resources with GPG, Git and Vim
There are many tools to manage passwords and sensitive resources, some cost money or are closed commercial products. I’m going to show you how to create a secure, distributed and encrypted remote password repository using Open Source tools like GPG … Continue reading
Posted in open source, sysadmin
Tagged encryption, gpg, linux, passwords, security, sysadmin
1 Comment
Browbeat Is now an OpenStack Project
Browbeat is an Open Source performance tuning and analysis tool for OpenStack clouds, and something I’ve been contributing to lately on my new team. As of this OpenStack commit Browbeat has moved to the openstack.org namespace and is on the … Continue reading
Posted in open source, sysadmin
Tagged browbeat, browbeat project, cloud, openstack, performance, scale, tools
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Quick and Dirty Remote Execution with Ansible
Ansible is a wonderful tool for orchestration, configuration management and automating a lot of tasks you’d never want to do by hand. Sometimes you just need to get in there and run a few commands across a bunch of different … Continue reading
Posted in open source, sysadmin
Tagged ansible, devops, linux, remote execution, shell module, sysadmin
4 Comments
Automate 7 Days to Die Game Server Deployment with Ansible
7 Days to Die is an extremely fun apocalyptic zombie survival crafting game with much less emphasis on the crafting and more on survival. It’s a cross between the good building aspects of Minecraft, with the bleak realism of Rust … Continue reading
Posted in gaming, open source, sysadmin
Tagged 7daystodie, ansible, automation, games, gameservers, linux gaming
1 Comment
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
Posted in open source, sysadmin
Tagged automation, development, libvirt, linux, open source, sandbox, sysadmin, testing, virtualization
2 Comments
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
Posted in open source, sysadmin
Tagged code completion, iTerm2, linux, open source, OSX Vim, sysadmin, vim, vim plugins
2 Comments
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
Posted in open source, sysadmin
Tagged ansible, automation, devops, elasticsearch, elk, kibana, linux, logging, logstash, sysadmin
24 Comments
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
Posted in open source, sysadmin
Tagged cloud, developers, linux, openstack, openstack summit, sysadmin, trystack
1 Comment
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
Posted in open source
Tagged armv7, desktop linux, fedora, linux, raspberry pi, raspberry pi 3
72 Comments
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
Posted in open source, sysadmin
Tagged asus rt-n66u, IoT, linux, linux home vlan router, networking, security, shibby, tomato, tomato firmware vlan, vlan, wireless vlan
68 Comments
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







