libpam-google-authenticator software package provides Two-step verification, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libpam-google-authenticator
libpam-google-authenticator is installed in your system.
Make ensure the libpam-google-authenticator package were installed using the commands given below,
$ sudo dpkg-query -l | grep libpam-google-authenticator *
You will get with libpam-google-authenticator package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | libpam-google-authenticator |
| Version | 20130529-2 |
| Description | Two-step verification |
| Sub Section | Admin |