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    $ host google.
    google has address 127.0.53.53
    google mail is handled by 10 your-dns-needs-immediate-attention.google.

    $ host your-dns-needs-immediate-attention.google.
    your-dns-needs-immediate-attention.google has address 127.0.53.53
    your-dns-needs-immediate-attention.google mail is handled by 10 your-dns-needs-immediate-attention.google.
Interesting.


I do not understand what's happening here. How does it resolve to a 127.0 address?


DNS A entires can resolve to any address you like; just, a 127.0 address is not very useful. What's strange is that someone would have set google. to point to a 127.0 address, and left that message in the MX record. (Usually TLDs have no records.)

Though I think I figured out the puzzle:

    $ host -t TXT google. 8.8.8.8
    google descriptive text "Your DNS configuration needs immediate attention see https://icann.org/namecollision"
https://icann.org/namecollision gives some interesting information.




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