How to enable RHUI repositories on AWS Marketplace instances that can not use auto-registration version 2
Environment
AWS. Access to Red Hat hosts, such as subscription.rhsm.redhat.com or cdn.redhat.com, is impossible due to firewall rules that can't be changed to allow the Red Hat IP addresses published in this article.
Issue
An AWS instance launched from a RHEL 9.7+ or 10.1+ image has no Red Hat repositories. Only a "RHUI client" repository is enabled.
Resolution
If you really can't update your firewall rules to allow connections to Red Hat services, run the following command to enable RHUI repositories again:
$ sudo rhui-reenable
Note: if you manage to start using Red Hat repositories from RHSM, you can disable RHUI repositories using a similar command:
$ sudo rhui-disable
Root Cause
When the instance was started, Red Hat repositories from RHUI were disabled automatically. Red Hat repositories from RHSM were supposed to be made available by registering the system, but the registration process failed due to firewall rules.
Diagnostic Steps
The output from dnf repolist does not show any Red Hat repositories—typically BaseOS and AppStream—neither from RHUI nor RHSM.
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