Installing CUE

CUE 2.0.2.1 requires version 6.0 of the Escenic Content Engine and version 3.7 of CCI Newsgate with the latest patch (6.24.0.34) applied. Before installing CUE, ensure that the back-end systems you are going to use it with have been upgraded accordingly:

If CUE is to use an Escenic back-end, make sure your Escenic Content Engine is upgraded to version 6.0 or higher
If CUE is to use a CCI Newsgate back-end, make sure that the version is 3.7, and that the latest patch for that version has been applied

CUE is available as a standard Debian installation package, making installation on Ubuntu or other Debian-based Linux systems very straightforward. CUE is a standalone web application, not an Escenic plug-in. Although it needs to be connected to an Escenic Content Engine and/or a CCI Newsgate back end, it does not need to be co-located with either of them. It can be installed on the same server as a Content Engine instance, but it does not need to be. An application server such as Tomcat is not required to serve CUE. Since it is a pure HTML/Javascript application, a web server such as nginx or Apache is sufficient.

The instructions given here are based on the use of an nginx web server, running on Ubuntu.

To install CUE:

Log in via SSH from a terminal window.
Switch user to root:
```
$ sudo su
```
If necessary, add the Escenic apt repository to your list of sources:
```
# echo "deb http://user:password@apt.escenic.com stable main non-free" >> /etc/apt/sources.list.d/escenic.list
```
where user and password are your Escenic download credentials (the same ones you use to access the Escenic Maven repository). If you do not have any download credentials, please contact Escenic support.
You need to install version 1.7.5 or higher of nginx. The version available in the Ubuntu 14.04 repositories is too old, so in order to ensure that you install a new enough version, you need to add a repository containing a more recent version:
```
# add-apt-repository ppa:nginx/stable
```
Update your package lists:
```
# apt-get update
```
Download and install CUE:
```
# apt-get install cue-web-2.0
```
Download and install nginx
```
# apt-get install nginx
```