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Can someone please explain to me, a casual home user, why it's dangerous to expose my NAS login page to the internet?... (alien.top)

submitted 10 months ago by [email protected] to c/[email protected]

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...without snark or jumping down my throat. I genuinely want to know why it's so unsafe.

I'm running a Synology DS920+, with my DSM login exposed through a Cloudflare tunnel. I have 2FA enabled, Synology firewall enabled with these rules in place. I also have this IP blocklist enabled.

After all of this, how would someone be able to break in via the DSM login?

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[–] [email protected] 1 points 10 months ago

If you open your login page to internet without security, someone one day will have a field trip inside your NAS files and will find all your "i know what you did last summer" photos.

I do have DS423+ and i am too using Cloudfare tunnel to access it from anywhere.

My CF Tunnel setup done like this:

Domain: nas.example.com points to http://1.2.3.4: and i have 2 access rules added.

One of these rules NEEDS to match otherwise - "You Shell Not Pass"
#1: Public IP needs to be matched as my public IP
#2: Person who wants to login needs to authenticate via Google Authentication. Google authentication needs to match [email protected] or [email protected]

While i am at home, i use nas.example.com to access my nas instead of using its local IP and cloudflare allows access with no questions asked.
While i am outside my home network i get asked to authenticate via google and gain access this way.

+CF Tunnel adds https automatically for me.

I don't use any firewall setup or any other rules inside NAS.