Installing Load Balancer OpenApp NAP on Rackspace Cloud Server makes your Cloud Platform a High Availability set up and features an elegant web interface. Before starting for Installing Load Balancer OpenApp NAP, you can read our previous tutorial on Installing OpenPanel on Rackspace Cloud Server, which does not include load balancer but only the Control Panel part.
Preface for Installing Load Balancer OpenApp NAP on Rackspace Cloud Server
This guide, Installing Load Balancer OpenApp NAP on Rackspace Cloud Server is intended for the developers who want to experiment with various Cloud Computing Platform to run own business. We are taking that the basic about a Rackspace Cloud Server is clear to the user who is following this guide.
There is not much points avoided in this Installing Load Balancer OpenApp NAP on Rackspace Cloud Server tutorial. Only the part of how to create a Server on The Rackspace Cloud from control panel is omitted so that we can start from login screen of the SSH / Telnet client. If you guidance for the initial steps, please follow any of our tutorial’s that initial part from other guides like Ubuntu with GUI on Rackspace Cloud Server as VNC Remote Desktop.
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Steps for Installing Load Balancer OpenApp NAP on Rackspace Cloud Server
You can use either Debian or Ubuntu for Installing Load Balancer OpenApp NAP on Rackspace Cloud Server. We will use Ubuntu 10.04 LTS (Lucid Lynx) for this guide as officially only up to Ubuntu 10.04 LTS is supported by OpenPanel. For production server, you can use Debian as most likes it for being a standard.
We are using Next Generation Server of The Rackspace Cloud with 2GB of RAM as we wanted to test with lower configuration. So for Installing Load Balancer OpenApp NAP on Rackspace Cloud Server, open either Terminal (Linux or Mac) or PuTTY (for Windows). We are showing this guide with PuTTY. Commands except for starting the session will be the same for all.
First edit the /etc/apt/sources.list :
1 | sudo nano /etc/apt/sources.list |
And add the four lines :
1 2 | deb http://download.openpanel.com/deb/ lucid main deb-src http://download.openpanel.com/deb/ lucid main |
1 2 | deb http://download.openpanel.com/deb/ lucid main openapp deb-src http://download.openpanel.com/deb/ lucid main openapp |
In this guide Installing Load Balancer OpenApp NAP, we have added 4 lines, two should work (only openapp but we have not taken any risk)
Like this :

Save it and add the required key :
1 | apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 4EAC69B9 |
Then do the update :
1 | apt-get update |
And after updating, it is better to restart your server, do a Soft Reboot. Then install the needed thing we are waiting for :
1 | apt-get install openapp-nap |
Press Y when prompted. After it gets installed, you will face this window :

Configure it and change your password :
1 | openpanel-cli "update user password=<span style="color: #ff0000;">mypassword</span>" |
Change the red text with your password. You should be able to login via :
1 | https://<span style="color: #ff0000;">your-ip.number-dot</span>:4089 |
This is the way we have finished Installing Load Balancer OpenApp NAP on Rackspace Cloud Server. In other article, we will discuss the settings needed for optimal performance.