this post was submitted on 21 Sep 2025
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Selfhosting Sunday! What's up? (lemmy.nocturnal.garden)
submitted 1 week ago by tofu@lemmy.nocturnal.garden to c/selfhosted@lemmy.world
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With the recent discussions around replacing Spotify with selfhosted services and the possibilities to obtain the music itself, I've been finally setting up Navidrome. I had to do quite a bit of reorganization to do with my existing collection (beets helping a ton) but now it's in a neatly organized structure and I'm enjoying it everywhere. I get most of my stuff from Bandcamp but I have a big catalog from when I've still had a large physical collection.

I'm also still working on my docker quasi gitops stack. I've cleaned up my compose files and put the secrets in env files where I hadn't already, checked them into my new forgejo instance and (mostly) configured renovate. Komodo is about to get productive but I couldn't find the time yet. Also I need to figure out how to check in secrets in a secure way. I know some but I haven't tried those with Komodo yet. This close of my fully automated update-on-merge compose stacks!

I've also been doing these for quite a while and decided to sometimes post them in !selfhosting@slrpnk.net to possibly help moving a bit from the biggest Lemmy instance, even though this community as it is is perfectly fine as well as it seems.

What's going on on your servers? Anything you are trying to pursue at the moment?

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[–] Jason2357@lemmy.ca 7 points 1 week ago

For privacy reasons, I have finally fully disabled dynamic dns updates and closed the last holes in the home firewall, moving to 100% proxying via a VPS for publicly available stuff, and a tailnet (headscale) for everything private. The only real cross-over is Nextcloud - mountains of private data, but I want it publicly available for file shares. Fortunately, Nextcloud has a setting to whitelist IP addresses that allow log-in, so I can restrict that to just the non-VPS tailnet addresses. From the public internet, only public shares are accessible.

I set up a L4 proxy so that the encryption for Nextcloud happens at home and the VPS just passes encrypted packets. Then it occurred to me that a compromised VPS could easily grab a SSL cert for my Nextcloud subdomain via a regular-old http-challenge and MITM access to all my files, defeating the point.

Then I found a neat hack that effectively disables http-challenge certs for subdomains by requiring a wildcard certificate - which can only be created with a dns-challenge. I was able to also disable all other certificate authorities. Obviously, I have /some/ trust in the VPS I administer - it's on my tailnet network - but no longer have the concern that it could easily MITM Nextcloud. https://www.naut.ca/blog/2019/10/19/mitigating-http-mitm-possibilities-with-lets-encrypt/