Secure File Transfer Protocol (SFTP)

Secure File Transfer Protocol (or SFTP), is an extension of SSH that provides encrypted file transfer capabilities. Since it is built into SSH, it is one of the easiest ways to transfer files between system, as in many cases you won't have to configure additional software to use it.

SFTP is a widely-supported protocol, so you can use it in a variety of applications. Here are the most important ones:

Using your local shell is by far the quickest way to transfer files using SFTP:

Connecting to an SFTP server works exactly the same as connecting to an SSH server - you just use the sftp instead of the ssh command, and when prompted give your password:

$ sftp username@domain.com

or

$ sftp username@123.123.123.123

Since SFTP is part of SSH, that means the preset aliases in your .ssh/config file will all work with the sftp command. If you have not created one of these files, you will want to, as it enables automatically passing public/private key pairs for convenient password-less authentication. Read SSH Configuration for more information on how to do this.

If command line is too daunting for you, you can always install programs like Filezilla or WinSCP to visually browse the SFTP server. Many other programs support SFTP connections as well.

See what works for you, but we recommend getting familiar with the CLI sftp command instead.