Modifying the hosts file is technically allowed on macOS, but modern security features complicate automation.
127.0.0.1 nexus-nae.adobe.com 127.0.0.1 nexus-webservice-b-adobe-ojogfgejgb-fcafdade.edge.adobe.io 127.0.0.1 52.4.102.187 127.0.0.1 52.5.116.182 hosts file entries to block adobe activation mac better
Scroll to the bottom, then the entire block list above. Modifying the hosts file is technically allowed on
is the standard, some modern apps can bypass it if they detect a loopback. To be even more aggressive, use instead of use instead of sudo dscacheutil -flushcache
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
Your Mac caches previous network lookups. Even if you changed the hosts file, the Mac might still remember the old route. You must flush the cache for changes to take effect immediately.
Run: