DevOps & System Administration

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DevOps & System Admin.

Simpler Deploys with git Subtrees: A Retrospective

Using subtrees like this did work fairly well, but I would think twice before using them again for this type of problem.

Test-Driven Infrastructure (TDI)

Many of the benefits of Test-Driven Development can be applied when managing infrastructure as code by pursuing a Test-Driven Infrastructure approach.

DevOps & System Admin.

Shellshock – CVEs, Patches, Updates, & Other Resources

Shellshock endangers un-patched web servers and Linux devices. So what is it? How can you tell if you’re vulnerable? And how can it be addressed?

DevOps & System Admin.

Re-imagining Operating Systems: Xen, Unikernels, and the Library OS

We're at the point now where we can look at the system as a whole and start to refactor it. We can eliminate unused components and invent new ones, more tailored to our current con

DevOps & System Admin.

Lessons from an SVN Server Migration

SVN still powers source control for many organizations. A recent migration gave me the opportunity to revisit some important commands and procedures.

DevOps & System Admin.

Debian and Ubuntu Automatic Security Updates

Automatic security updates for Debian and Ubuntu with unattended-upgrades provides an easy way to keep your servers patched against recent vulnerabilities.

DevOps & System Admin.

5 Linux Filesystem Utilities for Diagnostics

I find several Linux filesystem utilities great for diagnosing problems and gathering information. In this post, I cover df, du, file, readlink, and od.

DevOps & System Admin.

GPG + Git: The pass Password Manager

A lightweight password manager leveraging the strengths of GnuPG and Git can help make the password-protected world a little better.

DevOps & System Admin.

9 OpenSSL Commands To Keep Handy

OpenSSL commands are used frequently for managing SSL certificates. This reference demonstrates the usage of several key commands and options.

DevOps & System Admin.

Simpler Deploys with git Subtrees

Using subtrees can help work around specific limitations in Heroku and enforce proper separation of concerns.

DevOps & System Admin.

Using a Smartcard with a VirtualBox-based Vagrant Virtual Machine

An easy way to connect my Smartcard reader with a VM running Ubuntu using Vagrant, VirtualBox, and the standard precise64 basebox.

DevOps & System Admin.

Extending Google Sheets: Uptime Monitor

Google Sheets and Google Apps Scripting are powerful. Using them to build an uptime monitor is awesome and free!

DevOps & System Admin.

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