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FTP vs FTPS vs SFTP

Last updated 5 months ago

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FTP

Classic FTP

Plain FTP
Clear-text password sent over the network
Typically runs over TCP port 21
Defined by RFC 959 and 1123

FTPS

FTP over TLS/SSL

Often called 'FTP/SSL'
Often called 'Secure FTP'
Plain FTP over TLS/SSL channel
Password is encrypted
Transfer is encrypted
Typically runs over TCP port 21 or 990
Defined by RFC 959, 1123, 4217 and 2228

SFTP

SSH File Transfer Protocol

SSH File Transfer Protocol
Has nothing common with original FTP
Often called 'Secure FTP'
Password is encrypted
Transfer is encrypted
Typically runs over TCP port 22

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