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NextDNS Is Leaking Hosts Like Crazy!

I have a domain blocked off, let's say it's iad.domain.com. Subdomains like ddfkakjkef.iad.domain.com are leaking through though. This is unacceptable given your documentation says all subdomains will be blocked.

2 replies

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    • Calvin_Hobbes
    • 2 yrs ago
    • Reported - view

    I’m not able to confirm this. As an experiment I added disney.com to my deny list then queried www.disney.com and it was blocked. Obviously this isn’t a comprehensive test, but it showed me this particular entry worked on my iPad. I’ll try to a more comprehensive test when I’m at a CLI

    • Hey
    • 2 yrs ago
    • Reported - view

    I've just tested it with something I've seen on my logs pa.clients6.google.com and if I add clients6.google.com it blocks the domain without blocking the entire Google.com domain.


    As a further test I even did the domain in your example ddfkakjkef.iad.domain.com and when I blocked iad.domain.com it was blocked perfectly.

    So I don't know what you're seeing as even that exact example gets blocked perfectly on my end.

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Content aside

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