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Wittycat's avatar
Wittycat
Iron Contributor
Jan 26, 2021

Google for DOH ?

Hello,

I have reported it and i ask you to do the same because i have found out that the DOH services check if the DOH work by calling "google.com" and if it doesn't work or respond it tell "check if ...", i dont think a Microsoft product can call a Google domain for any reason, i think edge must try it's connection to a Microsoft domain.

Even when it come to try internet connection.

20 Replies

  • This is cleaned up now, no need to post a new thread. 

    Reminder to be civil and keep threads on topic.

    If you see a rule breaking comment, please report it so the moderators can address it. 

      • Anonymous's avatar
        Anonymous
        Hey Macqael, I still dont' understand the issue and how to reproduce. Are you still making the video?
      • Wittycat's avatar
        Wittycat
        Iron Contributor
        i have found out why he can refuse to activate doh, it's if it respond nxdomain to Google, but it would be nice to use msftconnecttest.com (like w10) for the connectivity testing of the DOH than google.com 😕
        i Hope they will not do the same in the windows 10 version of DOH (because if the OS do DOH i don't see why activate it in the browser ^^)
    • Wittycat's avatar
      Wittycat
      Iron Contributor

      i will try my best to simplify what's the bug.
      So think you want to add your own DOH provider who filter ads i will name it dns.lol.com
      now think that dns.lol.com block google.com too because the owner of lol.com is chinese and he can't use google.com so he prefert to block it totally.
      When you will enter manually "https://dns.lol.com/dns-query" (don't add it it's a fictive url) in edge, it will refuse the adresse since his test to check if the DOH work it's to resolve google.com.
      So i want to tell them to replace google.com (for the test of resolve) by a microsoft owned domain.

      • Anonymous's avatar
        Anonymous
        So it is a dns server that blocks stuff? I dont' know how to reproduce this though, cmd prompt?/??
  • Not sure what you are talking about exactly, it's vague
    DoH services don't need to check google

    what is the exact reproducing steps?
    • Wittycat's avatar
      Wittycat
      Iron Contributor

      HotCakeX First you forbid the doh to resolve google.com domain, after that you flush all dns caches in the doh, your computer and you restart the browser.

      You enter you DOH in edge settings and read you log (from the doh) you will see.

       

      and on edge it will refuse your doh with the error : 

       

      • HotCakeX's avatar
        HotCakeX
        MVP
        How to forbit DoH to resolve google.com domain? you mean blocking google.com in Windows hosts file?

        I sometimes see that error message but after few seconds it disappears, I use cloudflare DNS.

        "after that you flush all dns caches in the doh,"
        you mean running ipconfig /flushdns command in Windows or something else?

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