How to upgrade your AWS EC2 host configuration

Because the configuration of the host can no longer meet the existing requirements, the memory and CPU should be upgraded. I searched for information on the Internet and did not find related articles. The problem was solved after looking for AWS service personnel.

1. Shut down the EC2 host
2. Change the instance type: Select the instance type you want to upgrade
   EC2 instance types: https://aws.amazon.com/ec2/instance-types/?nc1=h_ls
3. Launch the EC2 host

Note: Changing the instance type is simply giving you a different operating platform. Let’s say you’re a 2-core 4G type. To upgrade the type of 4-core 7.5G. Amazon is equivalent to panning your system to a 4-core 7.5G platform, and the system is still the original system. However, it is still recommended to store data or install software to mount a separate EBS disk to the system for use.

Note: If you cannot access the server after upgrading the instance, the public IPv4 address and public IPv4 DNS address may have changed (the upgrade will cause the public IP address to change).

You need to change the public IP address of the server at the DNS resolution of the domain name and ssh login to change IP address or hostname.