$ sudo apt-get update
$ sudo apt-get install libpam-freerdp 

libpam-freerdp is installed in your system.

Make ensure the libpam-freerdp package were installed using the commands given below,

$ sudo dpkg-query -l | grep libpam-freerdp *

You will get with libpam-freerdp package name, version, architecture and description in a table

libpam-freerdp package basic information: