\ **Category:** Industrial\ **Tags:** docker\ **Created:** [22 November 2024 04:18 UTC](https://discourse.nodered.org/t/how-to-connect-node-red-opcua-server-in-docker-desktop/93331 "2024-11-22T04:18:34Z")\ **Posts on this page:** 5\ **Page:** 1

**Author:** ![seeyoui](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@seeyoui](https://discourse.nodered.org/u/seeyoui)\ **Post date:** [22 November 2024 04:18 UTC](https://discourse.nodered.org/t/how-to-connect-node-red-opcua-server-in-docker-desktop/93331/1 "2024-11-22T04:18:34Z")

Hi everyone, I installed the node-red in docker desktop, when I setup a opcua server in the node-red, I can't find the sever using UaExpert which is running in window system, out of the dock desktop. it seems apps in windows can't communicate with apps in docker. How to connect the apps in docker with the apps in windows? thanks a lots ---

**Author:** ![gregorius](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gregorius/32/73816_2.png) [@gregorius](https://discourse.nodered.org/u/gregorius)\ **Post date:** [23 November 2024 08:29 UTC](https://discourse.nodered.org/t/how-to-connect-node-red-opcua-server-in-docker-desktop/93331/2 "2024-11-23T08:29:31Z")

> [@seeyoui](#): > > How to connect the apps in docker with the apps in windows This isn't really a Node-RED centric question so this forum might not be the best place to pose this question. Having a quick look into the docker desktop documentation, perhaps this [question](https://docs.docker.com/desktop/features/networking/#i-want-to-connect-from-a-container-to-a-service-on-the-host) is what you're looking for. ---

**Author:** ![seeyoui](https://avatars.discourse-cdn.com/v4/letter/s/eada6e/32.png) [@seeyoui](https://discourse.nodered.org/u/seeyoui)\ **Post date:** [24 November 2024 10:19 UTC](https://discourse.nodered.org/t/how-to-connect-node-red-opcua-server-in-docker-desktop/93331/3 "2024-11-24T10:19:22Z")

Thanks all the same! I have get it done by expose the server port. ---

**Author:** ![olab](https://avatars.discourse-cdn.com/v4/letter/o/d07c76/32.png) [@olab](https://discourse.nodered.org/u/olab)\ **Post date:** [10 January 2025 05:27 UTC](https://discourse.nodered.org/t/how-to-connect-node-red-opcua-server-in-docker-desktop/93331/4 "2025-01-10T05:27:32Z")

Hi, In your container setup, you need to setup the port used by the ua server (5xxxx) like you did with port 1880 I think. kind regards O ---

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\ **Post date:** [11 March 2025 05:27 UTC](https://discourse.nodered.org/t/how-to-connect-node-red-opcua-server-in-docker-desktop/93331/5 "2025-03-11T05:27:43Z")

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