Even legitimate Adobe Creative Cloud subscribers might find value in blocking certain Adobe servers. License validation checks, telemetry data collection, and frequent online verification can be intrusive. If you maintain a valid subscription but want to use Adobe applications in a completely offline environment, blocking activation servers is technically permissible—though you should be aware this may cause license validation errors.
Even with correct entries, issues can arise. Here are the most common problems and their solutions.
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder Use code with caution.