Broken link in Using One-Time Passwords for Multifactor Authentication Section

The Using One-Time Passwords for Multifactor Authentication chapter has a broken link to c0t0d0s0.org blog entry about one-time passwords.

Replace the first paragraph in the chapter with the following content:

This chapter provides information about how to configure Oracle Solaris to require selected users to use the one-time password (OTP) from their mobile authenticator when logging in to an Oracle Solaris system. For an informal introduction to multifactor authentication, see the Only One Time c0t0d0s0.org blog entry.