Comment on selfhosting alternative to nextdns
lemmyvore@feddit.nl 10 months agoYou’d have to install a cert for each domain. It’s not likely to happen. The only provider where this works is Cloudflare but that’s because they force you to use them as registrar and DNS so they can issue duplicate certs for any domain.
chiisana@lemmy.chiisana.net 10 months ago
A CA cert is higher up can sign for any desired domain. Certificates are a chain of trust and as long as the entire chain can be validated (by the root level installed by the user), then the entire cert will appear valid. During installation, that’s what gets installed and then the provider signs for whatever domain you’re visiting that they’d need (or want) to MITM.
Cloudflare uses LetsEncrypt, Google and a few other CAs to sign their certs.