nbd-server software package provides Network Block Device protocol - server, 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 nbd-server
nbd-server is installed in your system.
Make ensure the nbd-server package were installed using the commands given below,
$ sudo dpkg-query -l | grep nbd-server *
You will get with nbd-server package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | nbd-server |
| Version | 1:3.7-1ubuntu0.1 [amd64, i386] |
| Description | Network Block Device protocol - server |
| Sub Section | Admin |