TFTP and 2FA
 

I have a client whose customers use TFTP to collect their reports and so on. They currently use WinSSHD from Bitvise. There is now a requirement for 2FA and Bitvise does not, as yet, support this feature.

Can anyone recommend a Windows based SSH/SFTP server that supports the likes of Google Authenticator, RSA SecurID or Symantec VIP?

I have found Linux based SSH/STFP solutions that support Google Auth but ths looks to be a real pain when multiple users are concerned.

Any guidance or suggestions are gratefully received.

TIA
Mark