Tech Blog

When I purchased Hard Kernel's Odroid HC2, I assumed I would find a tidy way to mount the device along side my other computer and network gear. I considered building a mount or shelf from wood; I also considered drilling holes in the heatsink to hang the device from a...

Did you know that Github can provide a patch file for any pull request (PR)? Appending .patch to any pull request URL will get you a patch file for the PR. If you want to locally test the changes provided in the PR then applying the patch to your local...

Packetbeat is a open source tool from Elastic (the makers of Elasticsearch) that analyzes network traffic in real-time and stores the data in Elasticsearch. You can collect some interesting data if you install Packetbeat in a location where it can see all the traffic between your network and the Internet....

The problem with using Docker and managing your firewall with Puppet is that you have two competing tools trying to manage the rules in the firewall. The puppetlabs-firewall module allows you purge all unmanaged firewall chains and rules, and if configured to do so, puppet will purge the rules added...

OpenSCAP is an open source tool for performing automated vulnerability assessment and policy compliance verification on linux. SCAP, pronounced “ess-cap”, is the Security Content Automation Protocol which pulls together open standards for describing vulnerabilities like CVE, CVSS, OVAL, and XCCDF. The OpenSCAP tool, which is NIST certified, ingests the SCAP...