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# FTPClient.ConnectMode Property

The connection-mode (passive or active) of data-channels.

public FTPConnectMode ConnectMode {get; set;}

#### Remarks

When the connection-mode is active, the server will initiate connections to the client, meaning that the client must open a socket and wait for the server to connect to it. This often causes problems if the client is behind a firewall.

When the connection-mode is passive, the client will initiates connections to the server, meaning that the client will connect to a particular socket on the server. This is generally used if the client is behind a firewall.

#### See Also

FTPClient Class | EnterpriseDT.Net.Ftp Namespace