RailDock creates isolated Docker networks for projects and uses service discovery to keep private communication inside the project boundary. External networks can also be attached when a service needs an explicitly shared network.

Do not publish a database merely so an application on the same project can reach it. Use the project network and service link model for east-west traffic, then expose only the public application surface that actually needs ingress.

Server resources expose network inspection and validation. Use them when imported workloads, external proxying, or manual host changes have created unexpected connectivity.