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    tgifri0

    Cisco’s blog entry 2022-02-10
    https://umbrella.cisco.com/blog/enhancing-support-dns-encryption-with-dns-over-https
    announces that their core resolvers now support DoT as well as DoH, effective
    2022-01-28.  Since they list the same IP addresses as OpenDNS, and identical
    DoH resolvers https://dns.opendns.com/dns-query and
    https://dns.umbrella.com/dns-query, the implication is both dns.opendns.com and
    dns.umbrella.com should work as DoT resolvers!  Verified both work for DoT on
    an Android 10 smartphone with Google Chrome.

    [Method:  Disable DoH in Google Chrome (so it won't interfere):  (3-dots)
    Settings > Privacy and security > Use secure DNS = Off.  Then set DoT on the
    operating system:  Settings > Network & internet > Advanced > Private DNS >
    radio button "Private DNS provider hostname" = dns.opendns.com > Save.  Use
    Google Chrome to visit https://welcome.opendns.com, proving OpenDNS is in
    effect.  Then ditto for DoT DNS server dns.umbrella.com, visiting
    https://welcome.umbrella.com successfully.  Optionally re-enable DoH in Google
    Chrome (which supersedes DoT when browsing):  Privacy and security > Use secure
    DNS = On > radio button "Choose another provider" > pulldown "OpenDNS".  Using
    a Google Pixel (1st. generation) phone, running LineageOS 17.1 (Android 10),
    with Google Apps installed.]

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  • Avatar
    Reg Ham

    Hello, 

     

    I am not sure what your question is.  I would recommend that you create a support request so we can troubleshoot the problem further.

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