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Check to see that the Iguana service is actually running using iguana --service status
Some distributions of Linux like Redhat and Centos have a system called SELinux which may require you to configure it to allow Iguana to work.
Use a command line web client like wget or curl to verify that Iguana’s web server is working.
Get the public IP address of your server together with the port number that Iguana is listening on
Put them together the complete URL for your web browser - i.e. http://<public IP address:port/
Reconfigure the firewall for the amazon web server so you can connect to Iguana with your web browser
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