libidn2-0 software package provides Internationalized domain names (IDNA2008) library, 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 libidn2-0
libidn2-0 is installed in your system.
Make ensure the libidn2-0 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libidn2-0 *
You will get with libidn2-0 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libidn2-0 |
| Version | 0.9-1 |
| Description | Internationalized domain names (IDNA2008) library |
| Sub Section | libs |