nginx-naxsi-ui software package provides nginx web/proxy server - naxsi configuration front-end, 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 nginx-naxsi-ui
nginx-naxsi-ui is installed in your system.
Make ensure the nginx-naxsi-ui package were installed using the commands given below,
$ sudo dpkg-query -l | grep nginx-naxsi-ui *
You will get with nginx-naxsi-ui package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Web Servers |
| Package | nginx-naxsi-ui |
| Version | 1.4.6-1ubuntu3.7 |
| Description | nginx web/proxy server - naxsi configuration front-end |
| Sub Section | httpd |