# Livebook attached node in docker

**URL:** <https://forum.elixirforum.com/t/livebook-attached-node-in-docker/44066>\
**Category:** Questions\
**Tags:** livebook\
**Created:** [November 24, 2021, 10:02am UTC](https://forum.elixirforum.com/t/livebook-attached-node-in-docker/44066 "2021-11-24T10:02:52Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![moogle19](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/moogle19/32/24423_2.png) [@moogle19](https://forum.elixirforum.com/u/moogle19)\
**Post date:** [November 24, 2021, 11:00am UTC](https://forum.elixirforum.com/t/livebook-attached-node-in-docker/44066/2 "2021-11-24T11:00:40Z")

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You probably only have the port 4000 exposed from the docker container, which will not work.  
You could read about [epmd](https://www.erlang.org/doc/man/epmd.html) and [how to setup erlang / elixir without epmd](https://www.erlang-solutions.com/blog/erlang-and-elixir-distribution-without-epmd/) to only expose one extra port to make it work.

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