SFTP im TCP/IP‑Protokollstapel:
| Anwendung |
SFTP |
| SSH |
| Transport |
TCP |
| Internet |
IP (IPv4, IPv6) |
| Netzzugang |
Ethernet |
Token
Bus |
Token
Ring |
FDDI |
SFTP – SSH File Transfer Protocol – usually runs over TCP port 22
FTP – plain, old file transfer protocol – usually runns over TCP port 21 (+ opens separate ports for data transfer)
FTP/SSL – FTP over TSL/SSL channel.
FTPS – same as FTP/SSL
Secure FTP – either SFTP or FTPS
More info:
FTP
FTP classic
- Plain FTP
- Clear-text password sent over the network
- Typically runs over TCP port 21
- Defined by RFC 959 and 1123
- Implemented in FTP/SSL component
|
FTP/SSL
FTP over TLS/SSL
- Often called ‘FTPS’
- 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
- Implemented in FTP/SSL component
|
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
- RFC not yet finished
- Implemented in SFTP component
|
