nss-updatedb software package provides Cache name service directories in DB format, 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 nss-updatedb
nss-updatedb is installed in your system.
Make ensure the nss-updatedb package were installed using the commands given below,
$ sudo dpkg-query -l | grep nss-updatedb *
You will get with nss-updatedb package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | nss-updatedb |
| Version | 10-03-16 |
| Description | Cache name service directories in DB format |
| Sub Section | Net |