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Merge pull request #1789 from tommyblue/patch-1

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Adds instruction about UDP port redirection
This commit is contained in:
Andy Rothfusz 2013-09-04 18:14:34 -07:00
commit e0d6bae1eb
1 changed files with 7 additions and 1 deletions
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8
docs/sources/use/port_redirection.rst
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@ -8,7 +8,7 @@
Port redirection
================
Docker can redirect public TCP ports to your container, so it can be
Docker can redirect public TCP and UDP ports to your container, so it can be
reached over the network. Port redirection is done on ``docker run``
using the -p flag.
@ -25,6 +25,12 @@ will be allocated.
# PUBLIC port 80 is redirected to PRIVATE port 80
sudo docker run -p 80:80 <image> <cmd>
To redirect a UDP port the redirection must be expressed as *PUBLIC:PRIVATE/udp*:
.. code-block:: bash
# PUBLIC port 5300 is redirected to the PRIVATE port 53 using UDP
sudo docker run -p 5300:53/udp <image> <cmd>
Default port redirects can be built into a container with the
``EXPOSE`` build command.