# OPC UA Server in Flowfuse

**URL:** <https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122>\
**Category:** FlowFuse\
**Tags:** docker\
**Created:** [20 March 2025 07:11 UTC](https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122 "2025-03-20T07:11:41Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![olab](https://avatars.discourse-cdn.com/v4/letter/o/d07c76/32.png) [@olab](https://discourse.nodered.org/u/olab)\
**Post date:** [20 March 2025 07:11 UTC](https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122/1 "2025-03-20T07:11:41Z")

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I'm experimenting on running OPC UA server within one NodeRed instance in FlowFuse.

The flowfuse host is running in docker.

What setting do I need to do in docker to make UA server work?

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [20 March 2025 08:18 UTC](https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122/2 "2025-03-20T08:18:35Z")

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Hi, you havent said what you have done but what makes you think there is something to change in docker?

Please provide some more information on what you have done and where you are stumbling.

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [20 March 2025 11:42 UTC](https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122/3 "2025-03-20T11:42:33Z")

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If it’s running as a server, you may need to open any necessary ports to allow external devices to connect into the container.

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**Author:** ![olab](https://avatars.discourse-cdn.com/v4/letter/o/d07c76/32.png) [@olab](https://discourse.nodered.org/u/olab)\
**Post date:** [20 March 2025 15:54 UTC](https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122/4 "2025-03-20T15:54:59Z")

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Thank you for your response. Normally, ports in a container need to be set up in docker to be exposed for hosts outside of docker. I guess that is the same for flowfuse. Flowfuse consists of multiple contaiers and I wonder which one to modify, If any..

Kind regards

Ola

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<div class="post-metadata">

**Author:** ![olab](https://avatars.discourse-cdn.com/v4/letter/o/d07c76/32.png) [@olab](https://discourse.nodered.org/u/olab)\
**Post date:** [20 March 2025 15:57 UTC](https://discourse.nodered.org/t/opc-ua-server-in-flowfuse/96122/5 "2025-03-20T15:57:30Z")

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Thank you for your response. Flowfuse has multiple container. Which one to set up the ua port?

Kind regards