freerdp-x11 software package provides RDP client for Windows Terminal Services, 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 freerdp-x11
freerdp-x11 is installed in your system.
Make ensure the freerdp-x11 package were installed using the commands given below,
$ sudo dpkg-query -l | grep freerdp-x11 *
You will get with freerdp-x11 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | X Window System software |
| Package | freerdp-x11 |
| Version | 1.0.2-2ubuntu1 |
| Description | RDP client for Windows Terminal Services |
| Sub Section | x11 |