Elastic Compute Service:Connect to an instance by using VNC

Prerequisites

• The logon password of the ECS instance to which you want to connect is configured. If you did not configure a logon password for the instance or if you forgot the password, you must reset the password for the instance. For more information, see Reset the logon password of an instance.

• If you log on to the Alibaba Cloud Management Console by using a Resource Access Management (RAM) user, the following policy is attached to the RAM user to grant the required permissions based on the principle of least privilege. For information about how to grant permissions to a RAM user, see Grant permissions to a RAM user.

  The following policy includes the permissions to perform the ecs:DescribeInstances action, which is used to query information about ECS instances, and the ecs:DescribeInstanceVncUrl action, which is used to query the VNC connection address of an ECS instance:

  {
    "Version": "1",
    "Statement": [
      {
        "Effect": "Allow",
        "Action": [
          "ecs:DescribeInstances",
          "ecs:DescribeInstanceVncUrl"
        ],
        "Resource": "*"
      }
    ]
  }