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   You can now try to login to KAUI from your browser using the URL https://INSTANCE_IP:443, where INSTANCE_IP is the IPV4 address for your instance, given on your dashboard as *Public IPV4 Address*. If all goes well, this should display the KAUI login screen. The browser may complain that your connection is not secure, but it should offer you a way to bypass the problem.
   
  -For an introduction to KAUI, see our http://docs.killbill.io/latest/getting_started.html#_using_kill_bill_with_kaui[Getting Started] guide. The default credentials are: `admin` / `password`. The first few requests might be a bit slow as Kill Bill initializes itself.
  +For an introduction to KAUI, see our https://docs.killbill.io/latest/userguide_kaui.html[Kaui Guide]. The default credentials are: `admin` / `password`. The first few requests might be a bit slow as Kill Bill initializes itself.
   
   In addition, you can login to the Kill Bill server using the URL https://INSTANCE_IP:8443. This provides access to certain detailed reports that may be needed for maintenance, including metrics, event logs, and the Swagger API pages.
   
  
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  == Overview
  
  This document describes the single-tier option. Everything you need for this option is bundled in the AMI and can be launched on a single EC2 instance with just one click. The components of this system include Kill Bill, KAUI, a database manager (DBM), and a load balancer. The EC2 instance runs Ubuntu Linux. The DBM is an instance of https://mariadb.org[MariaDB], an open source version of MySQL. The load balancer is the open source package https://www.nginx.com[Nginx]. This package serves as a front end or reverse proxy, distributing the incoming traffic to either Kill Bill or KAUI based on the incoming port.
  
  The organization of the single-tier system looks like this:
  
  
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  === Load Balancer
  
  The load balancer `nginx` should normally require little attention. The configuration files are located under `/etc/nginx/`. The configuration file for `nginx` itself is `/etc/nginx/nginx.conf`. Additional configuration files are located under `/etc/nginx/sites-enabled/`. The only file normally present in this directory is `/etc/nginx/sites-enabled/killbill.conf`. This file may need to be edited to enable SSL, as explained above.
  