Auto Scaling helps you maintain application availability and allows you to scale your Amazon EC2 capacity up or down automatically according to conditions you define. It is easy to setup a Auto Scaling group if you have a ELB configured in front of your webservers, but in some scenarios if a customer wants to do auto scaling without using EBL it becomes difficult. The reason for that is : If you don’t have ELB you cannot locate auto scaled EC2 …
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