Manage overlapping external subnets with Docker

One of the good (and bad) features of using Docker and docker-compose is it’s ability to spin up virtual networks for your container stack. This encourages application isolation, and clear thinking about what network ports you need to expose from and between your containers. By default, Docker allocates a /16 subnet from the 172.[17-32].0.0 range for their network segments. Unfortunately, we use this range extensively … Continue reading Manage overlapping external subnets with Docker

Supercharge your OpenStack Replay Fu (when you use SC Storage)

You’ve just discovered that your user broke something. No worries. You’ll just roll back to an earlier storage snapshot. You log into Horizon, browse to the instance and get the instance id. You then work out the UUID’s of the attached volume, jump into the SC Storage Manager, look through your list of hundreds of volumes, carefully compare the UUIDs, search for the date of … Continue reading Supercharge your OpenStack Replay Fu (when you use SC Storage)

External link to Windows 3.1 is not dead!

Windows 3.1 is not dead!

Feeling like you need to regress to your Windows 3.1 days? The Windows 3.1 File Manager lives! In a throw back to the past, Microsoft has released the Windows 3.1 File Manager on Github as an open source project. You can now compile it, and replace the bloated Windows Explorer found in modern versions of Windows! Find the source code here! Continue reading Windows 3.1 is not dead!