Overview

SFTP provides an alternative method for ssh client authentication. It's called SFTP public key authentication. This method allows users to login to your SFTP service without using password authentication and is often employed for file transfer automation. In this post, we'll walk you through the process of setting up this kind of authentication on the command line. It's easier to do this on a GUI-based interface but if you prefer to do things on the terminal, this post is for you.

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The first time a user connects to your SSH or SFTP server, his/her file transfer client may display an alert or notice indicating it doesn't recognize the server's fingerprint. What it's referring to is the server's SSH/SFTP key fingerprint, an important security feature that helps users and client applications authenticate SSH/SFTP servers. This post explains how it's used.

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