this post was submitted on 10 Jan 2025
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82
How do you handle SSL certs and internet access in your setup? (lemmy.world)
submitted 4 days ago* (last edited 4 days ago) by [email protected] to c/[email protected]
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tldr: I'd like to set up a reverse proxy with a domain and an SSL cert so my partner and I can access a few selfhosted services on the internet but I'm not sure what the best/safest way to do it is. Asking my partner to use tailsclae or wireguard is asking too much unfortunately. I was curious to know what you all recommend.

I have some services running on my LAN that I currently access via tailscale. Some of these services would see some benefit from being accessible on the internet (ex. Immich sharing via a link, switching over from Plex to Jellyfin without requiring my family to learn how to use a VPN, homeassistant voice stuff, etc.) but I'm kind of unsure what the best approach is. Hosting services on the internet has risk and I'd like to reduce that risk as much as possible.

  1. I know a reverse proxy would be beneficial here so I can put all the services on one box and access them via subdomains but where should I host that proxy? On my LAN using a dynamic DNS service? In the cloud? If in the cloud, should I avoid a plan where you share cpu resources with other users and get a dedicated box?

  2. Should I purchase a memorable domain or a domain with a random string of characters so no one could reasonably guess it? Does it matter?

  3. What's the best way to geo-restrict access? Fail2ban? Realistically, the only people that I might give access to live within a couple hundred miles of me.

  4. Any other tips or info you care to share would be greatly appreciated.

  5. Feel free to talk me out of it as well.

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[–] [email protected] 4 points 4 days ago (2 children)

The biggest reason to use VPN is that some ISPs may take issue with you running a web server over a residential service when they see incoming HTTP requests to your IP. If you don't want to require VPN, then Cloudflare tunnels are perfect for this and they also solve the need for dynamic DNS if you want to use static domain because your domain points to the Cloudflare edge servers and they route it to you wherever your tunnel endpoint is running.

Past that, Traefik is a great reverse proxy that can manage getting LetsEnrcypt SSL certificates for you even with wildcard domains and would still work fine with dynamic DNS.

[–] [email protected] 2 points 3 days ago* (last edited 3 days ago)

ISPs shouldn't care unless it is explicitly prohibited in the contract. (I've never seen this)

I still wouldn't expose anything locally though since you would need to pay for a static IP.

Instead, I just use a VPS with Wireguard and a reverse proxy.

[–] [email protected] 2 points 4 days ago (1 children)

Do you mind giving a high level overview of what a Cloudlfare tunnel is doing? Like, what's connected to what and how does the data flow? I've seen cloudflare mentioned a few other times in the comments here. I know Cloudflare offers DNS services via their 1.1.1.1 and 1.0.0.1 IPs and I also know they somehow offer DDoS protection (although I'm not sure how exactly. caching?). However, that's the limit of my knowledge of Cloudflare

[–] [email protected] 3 points 3 days ago

Basically the Cloudflare tunnel client connects from the computer running your services (or proxy) out to Cloudflare's edge servers and your DNS hostname is set to the IP of one of Cloudflare's edge servers. Cloudflare acts like a reverse proxy by sending incoming SSL requests for your hostname to your tunnel client through their own network. The DNS record doesn't expose your public IP and the Cloudflare tunnel client easily works behind firewalls, NAT, and doesn't need a static IP because it connects outbound to Cloudflare's network.

The biggest limitation is that this only works for SSL traffic because it can be routed by hostname in the SNI without needing a client on the client side. They do offer tunnels for other connections, but that requires their client running on both sides so it's more like a traditional VPN again.