File Server: Using MFA for SFTP login

Question

I'd like to be able to support MFA for SFTP logins using the keyboard-interactive method, essentially doing the server side part of https://www.rebex.net/sftp.net/features/authentication.aspx#keyboard-interactive

Is this possible with the File Server component, or is there another approach I should look at? I know I can use both public key and password using the method shown at https://www.rebex.net/file-server/features/authentication.aspx#password-and-public-key, but ideally I'd like to prompt for a password twice, once for the password itself and once for the MFA token.

Answer 1

We don't currently have an API to achieve this, but we have implemented a simple kind of MFA internally in our SSH core that you could adopt as well (perhaps with a bit of tweaking to make it suitable for your scenario). One of my colleagues will contact you soon to discuss the details and pricing.