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by edwintorok 2218 days ago
DNS rebinding can be fixed at the DNS server level. OpenWRT has an option for it. But this websocket thing in browsers can't easily be turned off/mitigated AFAICT.
4 comments

Well if you are going to use custom software to alter how protocols work, you could just change your web browser.
> DNS rebinding can be fixed at the DNS server level.

Let me know how that works with DNS over HTTP

>DNS rebinding can be fixed at the DNS server level

You can't always depend on that. eg. when you're on public/enterprise wifi that intercepts DNS requests.

This is why a local stub is a very good idea.
Or you can have this on firewall level.
No you can't -- the request from the browser is coming from inside the firewall, on an internal IP.
well, I meant that there are some special firewalls that you can handle dns-rebinding attacks.
exactly!