I was helping a colleague troubleshoot a deployment issue recently. He’d set up a virtual private cloud (VPC) in Amazon with a public subnet and a bunch of private subnets: 10.0.0.0/16 – VPC (the default) 10.0.0.0/24 – Public subnet 10.0.0.1/24 – Private subnet 1 10.0.0.2/24 – Private subnet 2 10.0.0.3/24 – Private subnet 3 Everything was behaving […]