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A comment on Apple removes first-party firewall exemption in macOS 11.2 beta 2. Parent comment

Re:Apple removes first-party firewall exemption in macOS 11.... by judge2020 on Wednesday January 13, 2021 @11:53PM (#25772209)
Are you writing

  ::/0 domain.example
as well? It might using either AAAA DNS lookups or the equivalent of `getent hosts` which pulls v6 records first, which are only overridden if there is a v6 override for the hostname.

  $ getent hosts cloudflare.com && getent ahosts cloudflare.com
  2606:4700::6810:85e5 cloudflare.com
  104.16.133.229  STREAM cloudflare.com
  $ echo "0.0.0.0 cloudflare.com" | sudo tee -a /etc/hosts
  $ getent hosts cloudflare.com && getent ahosts cloudflare.com
  2606:4700::6810:85e5 cloudflare.com
  0.0.0.0         STREAM cloudflare.com
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