Symantec 10521146 Administration Guide - Page 270
About LiveUpdate, functionality database, configuration, and database updates, patches, or
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270 Advanced configuration Updating Symantec Network Security LiveUpdate functionality. Not to be confused with upgrading, LiveUpdate enables SuperUsers and Administrators to check for new updates, apply updates to peer nodes or node clusters, and schedule them to install automatically. This section includes the following topics: ■ About LiveUpdate ■ Scanning for available updates ■ Applying updates ■ Setting the LiveUpdate server ■ Adding or editing automatic updates ■ Backing up LiveUpdate configurations About LiveUpdate Symantec Network Security provides the new LiveUpdate functionality to keep your system updated to the latest software levels in a seamless and timely manner. The Network Security console displays all available updates at any given time, and provides the LiveUpdate interface for you to selectively apply them or schedule them to be automatically applied. Symantec Network Security provides three kinds of LiveUpdates: ■ SecurityUpdates: Add detection capabilities to the product, such as event data, refinement rules, and encrypted signatures. SecurityUpdates are cumulative. Each update includes the data from the updates before it. Some SecurityUpdates are dependent upon EngineUpdates as well. ■ EngineUpdates: Add cumulative features and enhancements such as sensor functionality and data. EngineUpdates are cumulative. Each update includes the data from the updates before it. Some SecurityUpdates are dependent upon EngineUpdates as well. ■ Software or appliance ProductUpdates: Add restoration and repair functionality (database, configuration, and database updates), patches, or minor releases. Software and appliance ProductUpdates are incremental, and in some cases, you can rollback a ProductUpdate if you change your mind. You can choose any ProductUpdate or patch level, even if it is not the latest, and each level will automatically install all previous levels. For example, you can select Patch 3, even if Patch 4 is available. However, it is not possible to select Patches 2 and 4, and skip Patch 3. When you install Patch 3, Patches 1 and 2 are automatically included. See also "Updating policies automatically" on page 125.