Chapter 6. Red Hat Network Website 85In addition, you may entitle all newly registered systems to the Managements service level at onceby clicking the Auto-Entitle Newest Servers Now link at the bottom of the page. To use this link,which appears only when new, unentitled systems exist, first make sure you have enough Managemententitlements available. If you need to purchase additional entitlements, click the Buy them now linkat the top of the page. After auto-entitling, a message appears at the top of the System Entitlementspage indicating the number of systems successfully entitled to the Management service level.6.4.6. Advanced Search —The System Search page allows you to search through your systems according to specific criteria.These criteria include custom system information, system details, hardware, devices, interface, net-working, packages, and location. The activity selections (Days Since Last Checkin, for instance) canbe especially useful in finding and removing outdated System Profiles. Type the keyword, select thecriterion to search by, use the radio buttons to identify whether you wish to query all systems or onlythose loaded in the System Set Manager, and click the Search button. Yo may also select the InvertResult checkbox to reverse your results list.The results appear at the bottom of the page. For details about using the resulting system list, refer toSection 6.4.2 Systems.6.4.7. Activation Keys —RHN Management and Provisioning customers with the Activation Key Administrator role (includingOrganization Administrators) can generate activation keys through the RHN website. These keys canthen be used to register the Red Hat Enterprise Linux system, entitle the system to an RHN servicelevel and subscribe the system to specific channels and system groups through the command lineutility rhnreg_ks. Refer to Section 2.5 Registering with Activation Keys for instructions on use.NoteSystem-specific activation keys created through the Reactivation subtab of the System Details pagedo not show up in this list because they are not reusable across systems.6.4.7.1. Managing Activation KeysTo generate an activation key:1. Select Systems => Activation Keys from the top and left navigation bars.2. Click the create new key link at the top-left corner.WarningIn addition to the fields listed below, RHN Satellite Server customers may also populate theKey field itself. This user-defined string of characters can then be supplied with rhnreg_ks toregister client systems with the Satellite. Only numbers, letters, hyphens, and underscores maybe included in the key. All other characters are prohibited. Commas are especially problematicas they are the separator used when including two or more activation keys at once. Refer toSection 6.4.7.2 Using Multiple Activation Keys at Once — for details.3. Provide the following information: