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Merge pull request #19923 from thaJeztah/update-etc-hosts-docs

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Add note about legacy links
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Sebastiaan van Stijn 2016-02-02 18:09:22 +01:00
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man/docker-run.1.md
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@ -759,6 +759,12 @@ Create a 3rd container using the new --ipc=container:CONTAINERID option, now it
## Linking Containers
> **Note**: This section describes linking between containers on the
> default (bridge) network, also known as "legacy links". Using `--link`
> on user-defined networks uses the DNS-based discovery, which does not add
> entries to `/etc/hosts`, and does not set environment variables for
> discovery.
The link feature allows multiple containers to communicate with each other. For
example, a container whose Dockerfile has exposed port 80 can be run and named
as follows: