Suggest an editImprove this articleRefine the answer for “What does network isolation mean?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**Network isolation** means that containers in Docker do not see each other and cannot connect to each other unless they are in the same network. **Key point:** network isolation is a mechanism that divides containers into separate network areas, so they cannot interact with each other without explicit permission.Shown above the full answer for quick recall.Answer (EN)ImageNetwork isolation means that containers in Docker **do not see each other and cannot connect to each other** unless they are in the same network. Each network is like a separate "pocket" or room: what is inside is visible, what is outside is not. What this gives you: **1. Security** Containers do not get access to other containers' services unless explicitly joined into the same network. **2. Manageability** You can group microservices: some containers talk to each other, others are isolated. **3. Predictability** No "random" connections, only the ones that are specified. Summary: network isolation is a mechanism that divides containers into separate network areas, so they cannot interact with each other without explicit permission.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.