I am looking to setup a public DNS server and I found this DNS server

https://technitium.com/dns/

Does anyone know what the risks are of exposing the DNS port to the internet? How likely am I to get compromised? Is this a really bad idea?

  • ikidd@lemmy.worldEnglish
    2·
    10 months ago

    From outside? Set up a Cloudflare account and point the NS from your registrar to it.

    From inside? Set up unbound on a docker host and don’t open it to the internet. Use that one when you’re local and the normal public DNS when you’re outside. But everything I’m seeing in here makes me sure you shouldn’t even consider opening ports in your firewall to expose inside host services. Use a VPN when you’re roaming, and only use your DNS for local servers/hosts via that VPN. The only use for your outside domain name should be to point a single hostname to your outside IP address so you can use it for your VPN endpoint.

    Use DNS challenges for LetsEncrypt cert requests and remove host entries from your Cloudflare after you get your cert.