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2.4. Registering an Offline System
Administrators may want to attach and track subscriptions for a system with limited connectivity or inconsistent access to the Internet. To register an offline or "air-gapped" system, you are need to manually create a system profile using Red Hat Subscription Management (RHSM) in the Customer Portal. This profile serves as a placeholder and will not be connected to your actual system.
- Create a system profile: From the systems page in RHSM, click the New button. Provide the required information to finish creating the new system profile.
- Attach subscriptions: In your newly created system profile, click the Subscriptions tab, and attach any subscriptions you want to use with the system.
- Download and import the entitlement certificate(s): From the Subscriptions tab on your system profile, click Download Certificates to download the entitlement certificate(s) for attached subscriptions. The downloaded file will be in zip format. Extract the content and in /export/entitlement_certificates/ folder you will find the certificate xyz.pem. Move it to the client system's /tmp directory.
# subscription-manager import --certificate=/tmp/Name_Of_Downloaded_Entitlement_Cert.pem
Important
When you register an online system via # subscription-manager register, it automatically creates a connected profile on the Customer Portal, whereas in offline registration, you are manually creating a disconnected profile on the Portal.
After following this procedure, your system profile in the Customer Portal will show a subscription status "Unknown" and the command # subscription-manager status will output "Unknown."
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