So, stop searching for a "new key" and start developing. The real free activation is waiting for you behind a legitimate email signup. Have you tried the Red Hat Developer Subscription? Share your experience in the comments below. If you are still having trouble activating your RHEL system, describe the exact error message you get from subscription-manager — many in the community can help debug the issue.
sudo subscription-manager register --username your_developer_email --password your_password red hat activation key free new
sudo subscription-manager register --org="YourOrgID" --activationkey="YourFreeKey" So, stop searching for a "new key" and start developing
This method gives you the same binaries as a paid customer. You simply register your system using a command that links to your free account. red hat activation key free new
(You can download the ISO from the Red Hat Customer Portal after registering).