Locking down AWS security groups.

On a recent secure government project, our client had a number of challenging security and […]


Designing DNS using Route53 Private Hosted Zones (PHZ)

Route53 has been around for almost 5 years and offers a managed DNS solution for […]


Automating Puppet SSL certificates in an AWS autoscaling environment

Introduction After spending any time building resilient environments on Amazon AWS, it becomes clear that […]


Creating your own YUM repository on AWS S3 bucket

RHEL AMI available on AWS market place have access to RHUI (Red Hat Update Infrastructure) […]

vCenter Install/Upgrade

vCenter Server Appliance 6.0 New-fangled Installation – Errors

VMware have done away with the simple OVF install for the vCenter Server Appliance (vCSA). […]


Cisco VIRL Network Simulation Tool

Background and use cases It’s no secret that network architects and engineers alike have been […]


Connect a standalone server and SCOM to OMS

Since Operations Management Suite was announced at this year’s Microsoft Ignite event, here’s a quick […]


vSphere 6 and Instant Clone feature

Amongst the new features of vSphere 6 which were disclosed last year is one called “Instant Clone”, […]


Cloud Based Minecraft Servers: A Tutorial

Outside of work, you may well already be using a Cloud based service, for example […]