% google-authenticator


Do you want authentication tokens to be time-based (y/n) y
https://www.google...@YOURHOSTNAME%3Fsecret%3DWYD4SYCGEE5N4M3LA

Your new secret key is: WYD4SYCGEE5N4M3LA
Your verification code is 163127
Your emergency scratch codes are:
  40186300
  18418071
  87502143
  30873576
  00892542

Do you want me to update your "/path/homedir/.google_authenticator" file (y/n) y

Do you want to disallow multiple uses of the same authentication
token? This restricts you to one login about every 30s, but it increases
your chances to notice or even prevent man-in-the-middle attacks (y/n) y

By default, tokens are good for 30 seconds and in order to compensate for
possible time-skew between the client and the server, we allow an extra
token before and after the current time. If you experience problems with poor
time synchronization, you can increase the window from its default
size of 1:30min to about 4min. Do you want to do so (y/n) y

If the computer that you are logging into isn't hardened against brute-force
login attempts, you can enable rate-limiting for the authentication module.
By default, this limits attackers to no more than 3 login attempts every 30s.
Do you want to enable rate-limiting (y/n) y

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This process generates file named .google-authenticator in your home directory.
Note:If you are XTerm, you should see QR codes on the screen as shown above.