Docker Networking Explained | Connect Containers Like a Pro (Episode 6)

In this video, you’ll learn how Docker Networking works and how containers communicate with each other in real-world applications.

By default, containers are isolated — but modern apps need services to talk to each other (like a web app connecting to a database). Docker makes this seamless and secure.

We’ll cover:

Why container isolation exists

Docker network drivers explained:

Bridge (default)

Host (high performance, less isolation)

Overlay (multi-machine networking)

None (no networking)

Creating custom bridge networks

Connecting containers using --network

Automatic DNS (use container names instead of IPs!)

Port mapping with -p (HOST:CONTAINER)

Running a multi-container app (Flask + PostgreSQL example)

Real-world workflow for container communication

By the end of this video, you’ll know how to connect multiple containers cleanly without worrying about IP addresses.

🚀 Next Episode: Docker Compose — Run Multi-Container Apps with One File

Видео Docker Networking Explained | Connect Containers Like a Pro (Episode 6) канала Enhancerworx IT Tutorials