# Linux subscription settings in License Manager
<a name="settings-linux-subscriptions"></a>

During the process of discovery, License Manager searches the EC2 instances that are running under your Amazon Web Services account for Linux subscriptions. It detects if you have more than one Linux subscription defined for any instances, and aggregates the data.

## Linux subscriptions settings
<a name="linux-subscriptions-general-settings"></a>

You can configure settings for Linux subscriptions to control how License Manager handles discovery and aggregation. Default discovery settings apply across all types of Linux subscriptions.

The following actions are available to configure Linux subscription discovery.

**Edit**  
Change settings for Linux subscription discovery.

**Deactivate**  
Deactivate discovery and aggregation for Linux subscriptions associated with your EC2 instances. If you also have discovery activated for Red Hat Subscription Manager, License Manager first deactivates your RHSM registered provider, then it continues with deactivation for Linux subscription discovery.  
Deactivation doesn't affect your access secret for Red Hat Subscription Manager (RHSM). To avoid charges on your Amazon bill for an associated secret that you no longer need, see [Delete an Amazon Secrets Manager secret](https://docs.amazonaws.cn/secretsmanager/latest/userguide/manage_delete-secret.html) in the *Amazon Secrets Manager User Guide*.

 

The following settings are displayed in the License Manager console for Linux subscription discovery.Linux subscription discovery settings

*Linux subscription discovery*  
Indicates whether you've activated Linux subscription discovery for your account.

*Source Amazon Web Services Regions*  
Amazon Web Services Regions where you want License Manager to discover subscription data.

*Amazon Organizations*  
Optionally aggregate subscription data across your accounts in Amazon Organizations.

For more information, see [Manage Linux subscriptions in License Manager](linux-subscriptions.md).

## Red Hat Subscription Manager discovery
<a name="linux-subscriptions-rhsm-settings"></a>

If you've activated Linux subscription discovery, you can configure access for License Manager to retrieve additional data for RHEL subscriptions that are managed through Red Hat Subscription Manager (RHSM).

The following actions are available to configure your RHSM subscription discovery.

**Edit tags**  
Change the tags that are associated with your access secret.  
If you need to make other changes to your RHSM subscription, you must deactivate your current registration first, then set up a new registration.

**Deactivate**  
Deactivate your RHSM registered provider.  
Deactivation doesn't affect your access secret for Red Hat Subscription Manager (RHSM). To avoid charges on your Amazon bill for an associated secret that you no longer need, see [Delete an Amazon Secrets Manager secret](https://docs.amazonaws.cn/secretsmanager/latest/userguide/manage_delete-secret.html) in the *Amazon Secrets Manager User Guide*.

 

The following settings are displayed in the License Manager console for RHSM discovery.Red Hat Subscription Manager discovery settings

*Discovery status*  
Indicates whether you've activated discovery for RHSM subscriptions.

*Secret name*  
Links to the RHSM access secret in Amazon Secrets Manager that contains your Red Hat offline token. License Manager uses this secret to generate a new temporary access token to request subscription data from Red Hat Subscription Manager (RHSM).  
You can make changes to an existing secret through Secrets Manager. To update tags or other metadata for your secret, see [Modify an Amazon Secrets Manager secret](https://docs.amazonaws.cn/secretsmanager/latest/userguide/manage_update-secret.html) in the *Amazon Secrets Manager User Guide*. To update the secret value, see [Update the value for an Amazon Secrets Manager secret](https://docs.amazonaws.cn/secretsmanager/latest/userguide/manage_update-secret-value.html).

*Last data synchronized on*  
The timestamp from the last successful update of subscription data from the registered Red Hat Subscription Manager (RHSM) account.

*Tags*  
You can define key value pairs for tags that License Manager assigns to your RHSM access secret in Secrets Manager. To retrieve and decrypt your RHSM access secret, the License Manager service-linked role policy requires the secret, and any associated Amazon KMS key, to have the following tag assigned:  

```
"LicenseManagerLinuxSubscriptions": "enabled"
```
The tag is automatically assigned if License Manager created your secret during the registration process. If you create your own secret for the offline token, make sure that you assign that tag to the secret and to the associated KMS key, if it's encrypted. To add the tag, see [Modify an Amazon Secrets Manager secret](https://docs.amazonaws.cn/secretsmanager/latest/userguide/manage_update-secret.html) in the *Amazon Secrets Manager User Guide*.