Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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A reverse proxy takes all your web-based services, e.g.
and allows you to map these to domain names, so instead of typing
server.example.com:32400
you can typeplex.example.com
. I have simplified this quite a bit though - you need DNS configured as well, and depending on your requirements you may want to purchase a domain name if you intend on accessing content from outside your home without a self hosted VPN.Cloudflare is a DDoS mitigation service, a caching web proxy, and a DNS nameserver. Most users here would probably be using it for Dynamic DNS. You can use it in combination with a reverse proxy as a means to mask your home IP address from people connecting to your self hosted web-based services remotely, but on its own it cannot be used as a reverse proxy (at least easily - would not recommend attempting to). Do note that Cloudflare can see all the data you transmit through their systems, something to bare in mind if you are privacy conscious.
In my opinion though, it would be much better for you to use a self hosted VPN to access your self hosted services (can be used in combination with the reverse proxy), unless there is a specific need to expose the services out to the internet
Edit: fix minor typo, add extra info about cloudflare
Also, could a reverse proxy be used to give cloudflare's services to a port they don't support?
Yes, typically the proxy will listen on 443/80 and all the services it proxies to just use their defaults.
For example: emby.example.tld, port 443 > cloudflare, port 443 > your reverse proxy, port 443 > emby, port 8096
All the client sees is emby.example.tld on port 443 and the resulting web application, everything in between is transparent.