Update networking doc with clarified text regarding links usage
Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
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@ -150,10 +150,10 @@ Four different options affect container domain name services.
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`CONTAINER_NAME`. This lets processes inside the new container
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connect to the hostname `ALIAS` without having to know its IP. The
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`--link=` option is discussed in more detail below, in the section
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[Communication between containers](#between-containers). Docker updates
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the ALIAS entry in the /etc/hosts file of the recipient containers
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in order to keep the link since Docker may assign a different IP
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address to the linked containers on restart.
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[Communication between containers](#between-containers). Because
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Docker may assign a different IP address to the linked containers
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on restart, Docker updates the ALIAS entry in the /etc/hosts file
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of the recipient containers.
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* `--dns=IP_ADDRESS...` — sets the IP addresses added as `server`
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lines to the container's `/etc/resolv.conf` file. Processes in the
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