2. Viewing Status and Notifications

2.1. Red Hat Subscription Manager: Status and Notifications

Red Hat Subscription Manager provides system-level information about installed products, subscription status (per product), and available subscriptions.

2.1.1. Status

Red Hat Subscription Manager provides a series of log and UI messages that indicate any changes to the valid certificates of any installed products for a system. In the Subscription Manager GUI, the status of the system subscriptions is color-coded, where green means all subscriptions are attached for all installed products, yellow means that some products may not have all of the required subscriptions attached but updates are still in effect, and red means that updates are disabled.
Color-Coded Status Views

Figure 3. Color-Coded Status Views

The command-line tools also indicate that status of the machine. The green, yellow, and red codes translate to text status messages of subscribed, partially subscribed, and expired/not subscribed, respectively.
[root@server ~]# subscription-manager list
+-------------------------------------------+
    Installed Product Status
+-------------------------------------------+

ProductName:            Red Hat Enterprise Linux Server
Status: Not Subscribed
Expires:                                         
SerialNumber:                                    
ContractNumber:                                  
AccountNumber:

2.1.2. Notifications for Subscription Expiration

Whenever there is a warning about subscription changes, a small icon appears in the top menu bar, similar to a fuel gauge.
Subscription Notification Icon

Figure 4. Subscription Notification Icon

As any installed product nears the expiration date of the subscription, the Subscription Manager daemon will issue a warning. A similar message is given when the system has products without a valid certificate, meaning either there is not subscription attached that covers that product or the product is installed past the expiration of the subscription. Clicking the Manage My Subscriptions... button in the subscription notification window opens the Red Hat Subscription Manager GUI to view and update subscriptions.
Subscription Warning Message

Figure 5. Subscription Warning Message