Microsoft® ActiveX® replication controls can be programmed to synchronize data over the Internet. After the Publisher and Distributor are configured for publishing over the Internet and a publication enabled for anonymous subscriptions is created, an application using a ActiveX replication control can synchronize with the publication data.
This example demonstrates how a Microsoft Visual Basic® program can configure the SQL Distribution control to synchronize data with an anonymous SQL Server Subscriber over the Internet:
'Initialize the replication control.
Dim oSQLDistribution As New SQLDistribution
'Configure the control for an anonymous subscription.
oSQLDistribution.Publisher = "PublisherName"
oSQLDistribution.PublisherDatabase = "PublisherDatabaseName"
oSQLDistribution.Publication = "PublicationName"
oSQLDistribution.PublisherSecurityMode = DB_AUTHENTICATION
oSQLDistribution.PublisherLogin = "Login"
oSQLDistribution.PublisherPassword = "Password"
oSQLDistribution.SubscriberDatasourceType = SQL_SERVER
oSQLDistribution.Subscriber = "SubscriberName"
oSQLDistribution.SubscriberDatabase = "SubscriberDatabaseName"
oSQLDistribution.SubscriptionType = ANONYMOUS
oSQLDistribution.SubscriberSecurityMode = DB_AUTHENTICATION
oSQLDistribution.SubscriberLogin = "Login"
oSQLDistribution.SubscriberPassword = "Password"
'Configure the control to access the Publisher over the Internet
'using TCP/IP. You must provide a IP address and socket number or a
‘named which can be resolved by the naming service.
oSQLDistribution.PublisherNetwork = TCPIP_SOCKETS
oSQLDistribution.PublisherAddress = "111.11.11.11,1433"
'Configure the control to use FTP to download all initial snapshot
'files.
oSQLDistribution.FTPAddress = "111.11.11.11"
oSQLDistribution.FTPPort = 21
oSQLDistribution.FTPLogin = "FTPLogin"
oSQLDistribution.FTPPassword = "FTPPassword"
'Synchronize the data
oSQLDistribution.Initialize
oSQLDistribution.Run
oSQLDistribution.Terminate
Note The above properties are the same for both the SQL Merge and SQL Distribution controls. You can replace references to the SQLDistribution object with references to the SQLMerge object.
This example demonstrates how a Visual Basic program can configure the Merge Control to synchronize data for an anonymous subscription over the Internet:
'Initialize the SQL Merge Control.
Dim WithEvents sm As SQLMerge
Private Sub Command1_Click()
Set sm = New SQLMerge
'Setup distributor
sm.DistributorAddress = "SamplePublisher.company.com"
sm.DistributorNetwork = TCPIP_SOCKETS
sm.Distributor = "SamplePublisher"
sm.FileTransferType = FTP_TRANSFER
sm.FtpAddress = "SamplePublisher.company.com"
sm.FtpLogin = "anonymous"
sm.FtpPassword = "user@company.com"
'Setup publisher
sm.PublisherAddress = "SamplePublisher.company.com"
sm.PublisherNetwork = TCPIP_SOCKETS
sm.Publisher = "SamplePublisher"
sm.PublisherDatabase = "SamplePublisherDb"
sm.Publication = "SamplePublication"
'Existing sql publisher anon subs:
sm.Subscriber = "SampleSubscriber"
sm.SubscriberDatabase = "SampleSubscriberDb"
sm.SubscriberDatasourceType = SQL_SERVER
sm.SubscriptionType = ANONYMOUS
'Setup security settings:
'distributor and publisher use sql authentication
'subscriber uses nt authentication
sm.DistributorSecurityMode = STANDARD
sm.PublisherSecurityMode = STANDARD
sm.SubscriberSecurityMode = NT_AUTHENTICATION
sm.DistributorLogin = "sample_login"
sm.PublisherLogin = "sample_login"
sm.DistributorPassword = "sample_pwd"
sm.PublisherPassword = "sample_pwd"
sm.Initialize
sm.Run
sm.Terminate
End Sub
Private Sub sm_Status(ByVal Message As String, ByVal Percent As Long)
Label1 = Message
End Sub
| Adding an Anonymous Subscription | Configuring Publications for the Internet |