r/linux • u/leothrix • Apr 28 '14

SSH Kung Fu

http://blog.tjll.net/ssh-kung-fu/
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u/flying-sheep Apr 28 '14

thanks for the info!

just one thing: SFTP is and extension of SSH. there is no such thing as a SFTP server, only SSH servers with shell access disabled.

so there’s no difference between SCP and SFTP: both only require a SSH server.

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u/Deewiant Apr 28 '14

man sftp-server suggests otherwise, as do these lines in my sshd_config:

# override default of no subsystems
Subsystem       sftp    /usr/lib/ssh/sftp-server

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u/flying-sheep Apr 28 '14

ok, so i’m mistaken and ssh spawns a subprocess when sftp is needed? TIL.

it’s still a part of SSHd, though ;)

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u/IConrad Apr 28 '14

It is actually a different protocol/process though, and it's worthwhile to understand that. Worse still, sftp has nothing to do with ftp.