Category Archives: sysadmin

Shell One-liners and Quick and Dirty Loops

Sometimes you just need to get stuff done quickly and there’s nary a replacement than a quick shell one-liner.  Recently I’ve needed to feed some large, multi-variable commands into an external program for processing.  Here’s some simple shell one-liners and … Continue reading

Posted in open source, sysadmin | Tagged , , , , , , | 2 Comments

Let’s Encrypt Everything – Setting up the Free, Automated CA

Let’s Encrypt is a free, public SSL certificate authority (CA) you can use to generate and automate SSL certificate renewal.  I co-manage Trystack.org, a free OpenStack sandbox for the general public and our Horizon SSL certificate came up for expiration … Continue reading

Posted in open source, sysadmin | Tagged , , , , , , | Leave a comment

Back to the Future: Converting a Server VM to Bare Metal

It might seem like stepping back in time, but sometimes you start something with a VM and the desire for resources and usage skyrockets and you need to transplant it onto a bare metal server.  This was my situation with … Continue reading

Posted in open source, sysadmin | Tagged , , , , , , | Leave a comment

How to Use Self-signed SSL Certificates for Plex Media Server

Plex is a fork of the Open Source Kodi (previously XBMC) project from 2008, the Plex Media Server has evolved into what amounts to a free,  personal Netflix + Spotify that lets you stream home content to devices or browsers … Continue reading

Posted in open source, sysadmin | Tagged , , , , , | 4 Comments

Quick and Dirty SSH Key Management with Python

Sometimes I need to quickly copy SSH keys to remote systems in a pinch.  I can do this with the Ansible authorized_key module but that’s not always available.  I might be on a random system and Ansible or external internet … Continue reading

Posted in open source, sysadmin | Tagged , , , , , | Leave a comment

Fun and Automation with Git Hooks

Git is more than just an awesome, decentralized version control system (SCM) – it can also drive lots of useful automation by triggering actions to deploy infrastructure and services based on event and commit-based hooks.  You can drive a lot … Continue reading

Posted in open source, sysadmin | Tagged , , , , , , | Leave a comment

Automate Infrastructure Docs with Python, WordPress and Foreman

“It’s not done unless it’s documented,” says the wise Ops sage.  Frequently updated documentation is critical, it’s also one of the most neglected parts of technology.  Learn how we auto-generate server resource wiki data with Python, WordPress and Foreman.

Posted in open source, sysadmin | Tagged , , , , , , , | Leave a comment