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DataFlex

Close an SSH Tunnel

See more Socket/SSL/TLS Examples

Demonstrates Socket.SshCloseTunnel, which closes the SSH tunnel opened by SshOpenTunnel and terminates its forwarded channels.

Background. Closing the tunnel does not affect unrelated SSH objects or connections.

Chilkat DataFlex Downloads

DataFlex
Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoSocket
    String sSshPassword
    String sTemp1

    Move False To iSuccess

    Get Create (RefClass(cComChilkatSocket)) To hoSocket
    If (Not(IsComObjectCreated(hoSocket))) Begin
        Send CreateComObject of hoSocket
    End

    //  Connect to the SSH server and initialize an SSH tunneling session.  Port 22 is conventional but
    //  not required.
    Get ComSshOpenTunnel Of hoSocket "ssh.example.com" 22 To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Authenticate the SSH session before opening forwarded channels.
    //  The SSH password should come from a secure source rather than being hard-coded.
    Move "mySshPassword" To sSshPassword
    Get ComSshAuthenticatePw Of hoSocket "sshUser" sSshPassword To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Close the SSH tunnel and terminate its forwarded channels.  This does not affect unrelated SSH
    //  objects or connections.
    Get ComSshCloseTunnel Of hoSocket To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSocket To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "SSH tunnel closed."


End_Procedure