libxtables10 software package provides netfilter xtables 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 libxtables10
libxtables10 is installed in your system.
Make ensure the libxtables10 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libxtables10 *
You will get with libxtables10 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | libxtables10 |
| Version | 1.4.21-1ubuntu1 |
| Description | netfilter xtables library |
| Sub Section | Net |