Yes, you need SSH server. But FTP (on port 21) is really bad example here - there's no point in forwarding (and securing) FTP since there is SFTP already installed as subsystem of SSH on all SSH2 servers. So, why use home made secured tunelling when you get packaged one?
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Castleberry Investments
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Rhapsody Networks
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Serengeti Systems Incorporated
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Mapframe Corporation
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Rhapsody Networks
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Dionach
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Clever Technologies
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InterSoft International
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Dionach
...with a minimum of effort as the DLL interface was written with such simplicity...