Symantec 10521146 - Network Security 7120, Administration Manual

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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.