this post was submitted on 22 Oct 2023
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Security Concerns: Exposing My Local RESTful API to the Internet via Cloudflare Tunnel – Is My Home Network at Risk? (alien.top)
submitted 1 year ago by [email protected] to c/[email protected]
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Hello guys, I'm have little to no experience when i have to deal with networking or cybersecurity.

I recently created a backend RESTful API on my Ubuntu VM on my personal desktop and dockerized the app, connecting it to a bridge network named 'tunnel.' I also have the Cloudflare Docker hosted in the same 'tunnel' network, which allows my local RESTful API Docker to be accessible via my domain and exposed to the internet.

Can anyone help me understand if this setup poses any security risks to my home network?

If so, what should I do to help reduce the risk? I have read that firewall helps, but does a restful api container developed with golang requires it?

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[–] [email protected] 1 points 1 year ago

Not sure why no one has pointed you to the actual product Cloudflare have for API security - Cloudflare API Gateway (and API Shield).

You can kinda-sorta-not-really fudge control with a combination of Access Policy (or exclusion rules for that) and Firewall Rules, or even tack on Access control via JWT etc if you want though.

Withuot any of those just consider it having been made 'public' to the internet at large and secure accordingly.