The original problem

I've recently spent some time working on an OpenStack deployment. I ran into a problem in which the compute service would frequently stop communicating with the AMQP message broker (qpidd).

In order to gather some data on the problem, I ran the following simple test:

• Wait n …

I’ve been playing around with Git, Puppet, and GPG verification of our Puppet configuration repository, and these are some random facts about Git that have come to light as part of the process.

If you want to pull both changes and new tags from a remote repository, you can …

Pursuant to my last post, I've written a simple man-in-the-middle proxy to intercept communication between the Envoy and the Enphase servers. The code is available here.

What it does

As I detailed in my previous post, the Envoy sends data to Enphase via http POST requests. The proxy intercepts these …

We recently installed a (photovoltaic) solar array on our house. The system uses Enphase microinverters, and includes a monitoring device called the "Envoy". The Envoy collects data from the microinverters and sends it back to Enphase. Enphase performs monitoring services for the array and also provides access to the data …

I use CrashPlan as a backup service. It works and is very simple to set up, but has limited options for controlling bandwidth. In fact, if you're running it on a headless system (e.g., a fileserver of some sort), your options are effectively "too slow" and "CONSUME EVERYTHING". There …