Unsecured public DNS

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1

Hello.

I'm no expect with networking but I'm wondering if anyone is able to help me. I've had Pi-hole installed for a while now and I came across this video on Youtube by the networking engineer "NetworkChuck". So I created an account with OpenDNS and logged into my Pi-hole admin page (running locally on my own RaspberryPi) and pointed the DNS to OpenDNS. Everything is working brilliantly. I go to read the comments and notice the someone mentioned that the videos shows us how to create an "unsecured public DNS system with an insecure API to modify the blacklist".

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Can anyone provide me with some information about this since I'd like to keep my network as secure as possible. Thanks.

Also, is it possible to use Alexa with Pi-hole the same way he did in the video. I understand his environment is build in the cloud and I'd have to do some portforwarding since my Pi-hole is running locally but I've heard that this is bad again. Thanks.

2

If your Pi-hole is installed on a device on your own LAN (behind your own router) and no ports are open on your router, you don't have an open resolver.

3

I'm sorry for being an idiot but what does that mean for me? I have my router pointed at my Raspberry Pi address (a private 192.168 address) and on my Pi-hole admin panel, I have OpenDNS selected.

4

It means you're safe with your configuration.

5

Run the port tests on this website and it will show if any ports are open to the internet.

https://www.grc.com/x/ne.dll?bh0bkyd2