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reverse proxy over vpn without docker? (lemmy.world)

submitted 1 week ago by early_riser@lemmy.world to c/selfhosted@lemmy.world

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I'm looking into replacing cloudflare with a VPS running a reverse proxy over a VPN, however, every solution I see so far assumes you're running Docker, either for the external reverse proxy host or the services you're self hosting.

The VPS is already virtualized (perhaps actually containerized given how cheap I am) so I don't want to put Docker on top of that. The stuff I'm self hosting is running in Proxmox containers on a 15 year old laptop, so again, don't want to make a virtual turducken.

Besides, Docker just seems like a pain to manage. I don't think it was designed for use as a way to distribute turnkey appliances to end users. It was made for creating reproducible ephemeral development environments. Why else would you have to specify that you want a storage volume to persist across reboots? But I digress.

Anyway, I want to reverse proxy arbitrary IP traffic, not just HTTP/S Is that possible? If so, how?

My initial naive assumption is that you set up a VPN tunnel between the VPS and the various proxmox containers, with the local containers initiating the connection so port forwarding isn't necessary. You then set up the reverse proxy on the VPS to funnel traffic through the tunnel to the correct self-hosted container based on domain name and/or port.

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[–] mhzawadi@lemmy.horwood.cloud 4 points 1 week ago* (last edited 1 week ago)

apt/yum/dnf install nginx, listen on public IP of VPS, use proxy_pass to forward to your internal IP

server {
    listen [::]:443 ssl;
    http2 on;
    server_name service.example.com;
    root /var/data/websites/holding;
    index index.php index.html index.htm;

    #SSL setting
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
    add_header X-Clacks-Overhead "GNU Terry Pratchett";
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

    # access_log /var/log/nginx/service-access.log main;
    access_log off;

    location / {
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "Upgrade";
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $remote_addr;
      proxy_set_header X-Forwarded-Proto "https";
      proxy_set_header X-SECURE-REQUEST "true";
      proxy_set_header Host $http_host;
      proxy_pass http://192.168.1.2/; #IP of the service over the VPN
    }

}