Overview

This topic describes how to create and connect to an Elastic Compute Service (ECS) instance.
Perform the following operations:
1. Create a security group: A security group acts as a virtual firewall to control inbound and outbound traffic for ECS instances. Each ECS instance must belong to at least one security group. When you create an instance, you must select a security group for the instance.
2. Create an instance: An ECS instance is a virtual machine that contains the basic computing components of a server, such as CPU, memory, operating system, network configurations, and disks. After a security group is created, you can select an instance type based on your business needs to create instances in the security group.
3. Instance connecting overview: Select a method to connect to an instance based on the network configurations and operating system of the instance and the operating system of your computer. After you connect to the instance, you can perform operations on it such as installing applications.