Use the Manage Connections dialog box to specify the properties of connections used by maintenance plans. When you create a maintenance plan, a local connection to the server where you created the plan is created. Use this connection to create tasks that perform work on this local connection. When needed, use the Manage Connections dialog box to add them. When additional connections are configured they appear in the connections box for each task.
The server instance.
Indicates whether the connection is made with Windows Authentication or SQL Server Authentication.