No More Physical Network Appliances - Web Application Hosting in the AWS Cloud: Best Practices

No More Physical Network Appliances

You cannot deploy physical network appliances in AWS. For example, firewalls, routers, and load balancers for your AWS applications can no longer reside on physical devices but must be replaced with software solutions. There is a wide variety of enterprise-quality software solutions, whether for load balancing (e.g., Zeus, HAProxy, NGINX Plus, and Pound) or establishing a VPN connection (e.g., OpenVPN, OpenSwan, and Vyatta). This is not a limitation of what can be run on the AWS Cloud, but it is an architectural change to your application if you use these devices today.