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What's the difference between SFTP and FTP over SSH2?
In an SFTP transfer, the SSH2 server both encrypts the data
and handles the file transfer itself. This is true for VShell®
as well as OpenSSH and other UNIX or Linux servers. FTP over
SSH2 uses the port forwarding capabilities of SSH2 to forward
standard FTP over an encrypted tunnel, while the actual FTP
file transfer is handled by a separate FTP server.
SFTP is generally more secure than FTP over SSH2. FTP over
SSH2 is considered secure only if the FTP server resides on
the same machine as the SSH2 server. If you have a choice
between using SFTP or FTP over SSH2, SFTP is the better choice,
especially when you don't know whether the FTP and SSH2 servers
are on the same machine or on a trusted network.
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