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Signature Database – indicates whether the signature database needs to be downloaded or has been downloaded.

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Signature Database Timestamp – displays the last update to the SonicWall IPS signature database, not the last update to your SonicWall security appliance.

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Update button – updates the database manually.

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Last Checked – indicates the last time the SonicWall security appliance checked the signature database for updates. The SonicWall security appliance attempts to synchronize the database automatically on startup, and once every hour.

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IPS Server Expiration Date – indicates the date when the SonicWall GAV service expires and, therefore, your Intrusion Prevention service. If your SonicWall GAV subscription expires, the SonicWall IPS inspection is stopped and the SonicWall IPS configuration settings are removed from the SonicWall security appliance. These settings are restored automatically after renewing your SonicWall GAV license to the previously configured state.