this post was submitted on 18 Jan 2024
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Tailscale help needed (lemmy.world)
submitted 10 months ago* (last edited 10 months ago) by butt_mountain_69420@lemmy.world to c/selfhosted@lemmy.world
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I've just about got this Docker thing licked. After hundreds of hours, I finally get it, and my dusty millenial ass has joined the 21st century.

-but we have issues

==============================xxxx==============================

The environment:

I have multiple containers running on my local network, including photoprism, Kavita, and Filebrowser. I also installed Heimdall as a startpage. On the local network everything works great.

The entire goal of this project is to have these services accessible from outside the house, from my mobile devices but also with the ability to share links and files with friends.

==============================xxxx==============================

The problem:

Enter Tailscale. I tried port forwarding, having a domain, all that jazz, but it ended up being way too complicated. I don't want just anyone to access my shit, I only want a handful to be able to use services of my choosing in accordance with the user permissions I set up for them. Tailscale was the first thing I tried that worked.

I added my docker instance to tailscale, and when you access the machine, you are correctly taken to my Heimdal start page. Unfortunately, when you click on the icons for my docker services, the browser gives you an "unable to connect" error.

Under my Tailscale admin panel, the services are listed along with their port and IP information. Heimdall (443) and Portainer(8000) are listed as https and http under "type", as expected. The remaining services are listed as "other." (the portainer link doesn't work either)

  • Has anyone else dealt with this?

  • If this has to do with ports, is there an easy way to configure ports without having to re-run the images and make new containers?

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[–] ArbiterXero@lemmy.world 6 points 10 months ago (1 children)

What do the links look like on the start page?

The problem is that Tailscale gives your server a “magic” ip, which isn’t the same one as on your local network. On your local network, do you access them by port? Or reverse proxy?

Machine:8080 or service.machine.localdomain

[–] schmurian@lsmu.schmurian.xyz 1 points 10 months ago* (last edited 10 months ago)

I think this is what you should look into. Are the services in Heimdall listed with the local IP or host names? Or are they referenced with the tailscale IP?

Three things I want to add here:

  • On tailscale I can only access my home lab's root page with the services being accessible with something like domain.tld/service.
  • service.domain.tld is not supported by tailscale. (See github issue)
  • The local domain is different to the tailscale domain. If you want to use them with a reverse proxy (nginx, caddy) you need to have rules configured for your tailscale magic DNS domain too.

I hope this helps.