> For the complete documentation index, see [llms.txt](https://docs.xibosignage.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xibosignage.com/kb/cms-installation-and-upgrades/running-on-an-existing-docker-cluster/using-different-ports-with-docker.md).

# Using different ports with Docker

If you already have a web server listening on port 80 of your host machine, or would prefer to use an alternative port number, then you need to copy the `cms_custom-ports.yml.template` file and change the ports section for `cms-web`

The file should be saved as `cms_custom-ports.yml`

Similarly, Xibo’s XMR server will be started, listening on port 9505.

If you would prefer to use an alternative port number, then you’ll need to do so by copying the `cms_custom-ports.yml.template`  file and changing the ports section for `cms-xmr`

* The ports section of a Docker Compose YML file lists ports in the format `<host>:<container>` - to move to port 8080 the declaration would be `8080:80`.

To use this file replace any `docker compose up -d commands` in instructions with `docker compose -f cms_custom-ports.yml up -d`


---

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