If two containers are on a bridge network, can they talk to the outside internet?

Yes. By default, a bridge network allows containers to route outbound traffic (like downloading an NPM package) through your Host machine's internet connection via NAT (Network Address Translation).

Can one container be connected to multiple networks?

Yes! A container can be plugged into `frontend-net` to talk to the Load Balancer, and simultaneously plugged into `backend-net` to talk to the Database. This allows you to create highly secure, segmented network architectures.

What is an Overlay Network?

A bridge network only works for containers running on the SAME physical machine (laptop). An Overlay Network is a highly advanced network used in Docker Swarm or Kubernetes that connects containers running across MULTIPLE physical servers in a cluster, creating a massive, distributed virtual switch.

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Docker Networks

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