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# DataCentral

UltraSearch can be connected to a central index server (DataCentral). DataCentral continuously indexes metadata and full-text information from selected storage systems. The index is then stored in a central database on your premises. This central index can be used by UltraSearch to perform fast, resource-efficient searches.

Further information about DataCentral can be found in the DataCentral documentation.

The connection to DataCentral can be configured in UltraSearch under “Options > Miscellaneous > Connect with a DataCentral service.”

Use a Central Index Server | Enables the use of a central index server. The connection to the server is configured using the following options.
Server Name / IP | The name of the central index server or an IP address can be entered here.
Port | Specifies the port used to communicate with the central index server.

## Server certificates (optional)

Connect to a server with a valid certificate only | Specifies that the connection to the index server can only be established with a valid certificate.
Connect to a server with this fingerprint only | Specifies that the connection to the index server can only be established using a specified fingerprint. The fingerprint can either be entered manually or requested from the server using the button to the right of the input field.
Accept any certificates | Specifies that the connection to the index server can be made using any certificate.