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add info about network aliases #3840

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Jan 18, 2021
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add info about network aliases #3840

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11 changes: 11 additions & 0 deletions site/tasks/weavedns/weavedns.md
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Expand Up @@ -34,6 +34,17 @@ root@ubuntu:/# ping pingme
...
```

Moreover, weaveDNS always register all network aliases (--network-alias option to docker run).

```
host1$ docker run --network weave --network-alias pingme --network-alias pingme2 -dti weaveworks/ubuntu
host1$ docker run --network weave --hostname=ubuntu.weave.local -ti weaveworks/ubuntu
root@ubuntu:/# ping pingme
...
root@ubuntu:/# ping pingme2
...
```

> **Note** If both hostname and container name are specified at
the same time, the hostname takes precedence. In this circumstance, if
the hostname is not in the weaveDNS domain, the container is *not*
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