SFTP not working?

[RyanThaDude]

I usually use SFTP to transfer my files to my website since I need to keep the timestamps correct since FTP doesn't seem to support this. When I tried to log in I received an error in my (S)FTP client Filezilla and fails to connect:

Disconnected: No supported authentication methods available (server sent: publickey,gssapi-keyex,gssapi-with-mic)

Is SFTP no longer supported or is it just down?

BTW, I'm on Boru.

Thanks!