In a public cloud environment Alibaba Cloud is responsible for security of cloud computing infrastructure...

To reduce the communication cost, five administrators of the company use the root account to log on to the ECS instance.

After buying an ECS instance, enable the security group firewall for the ECS instance through the console, and only allow a management IP address to remotely log on to the ECS instance.

For easy management, change the administrator password for the ECS instance to 123456.

To enable colleagues working at home to update data, open public IP addresses for ApsaraDB for RDS instances, and allow all IP addresses to connect to the instances