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[SOLVED] How to configure Lemmy instance nginx proxy for websockets? (lemmy.world)

submitted 2 years ago* (last edited 2 years ago) by penguin_ex_machina@lemmy.world to c/selfhosted@lemmy.world

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I'm playing around with my own instance of Lemmy but I keep getting a "websocket connection failed" error in my console. I'm having a really hard time understanding how to set up nginx for websockets - I'm more used to Apache and not familiar with WS at all. Is there documentation hiding somewhere that will help me set up my proxy forwarding properly?

EDIT: Solved! Check out my solution here: https://lemmy.world/comment/141648. Thanks everyone!

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[–] nulldev@lemmy.vepta.org 3 points 2 years ago* (last edited 2 years ago) (1 children)

The default Lemmy nginx config should handle websockets properly. Are you putting it behind a second nginx layer?

[–] penguin_ex_machina@lemmy.world 1 points 2 years ago (1 children)

I might be. See my response here: https://lemmy.world/comment/101425

[–] nulldev@lemmy.vepta.org 2 points 2 years ago* (last edited 2 years ago)

I would recommend you ditch the second nginx layer. It's a waste of resources and it can cause a multitude of issues if the configuration isn't done correctly.

If you are hosting multiple domains on the same server, disable the nginx container in the docker-compose.yml file and copy Lemmy's nginx config into your system's nginx config (e.g. /etc/nginx/).
- If you go this route you should also delete the lemmyexternalproxy network, delete internal: true on the lemmyinternal network (required to enable port forwarding) and add port forwards to the lemmy and lemmy-ui docker services. Here's what that would look like: https://www.diffchecker.com/vjfEFuz6/
If you are not hosting multiple domains on the same server, simply edit the port forwards in the docker-compose.yml file for the proxy service to bind to whatever your external facing IP is.