mach의 컴퓨터 노트

http://www.linux.com/community/blogs/133-general-linux/783135-securing-ssh-with-two-factor-authentication-using-google-authenticatorSecuring SSH with two factor authentication using Google AuthenticatorTuesday, 05 August 2014 13:03blackMORE Ops Securing SSH with two factor authentication using Google AuthenticatorTwo-step verification (also known as Two-factor authentication, abbreviated to TFA)..