附录

名词解释

• 华为云Flexus云服务器X实例：Flexus云服务器X实例是新一代面向中小企业和开发者打造的柔性算力云服务器。Flexus云服务器X实例功能接近ECS， 同时还具备独有特点，例如Flexus云服务器X实例具有更灵活的vCPU内存配比、支持热变配不中断业务变更规格、支持性能模式等。
• Elastic Cloud Server(ECS)：Elastic Cloud Server (ECS) provides secure, scalable, on-demand compute resources, enabling you to flexibly deploy applications and workloads.
• Elastic IP(EIP)：The Elastic IP (EIP) service provides static public IP addresses and scalable bandwidths that enable your cloud resources to communicate with the Internet. You can easily bind an EIP to an ECS, BMS, virtual IP address, NAT gateway, or load balancer, enabling immediate Internet access.
• NAT Gateway：Public NAT gateways translate private IP addresses into EIPs, and are used by cloud servers in a VPC for secure, cost-effective Internet access. Private NAT gateways translate between private IP addresses, and are used between VPCs or your VPC and on-premises data center to keep legacy networks running after cloud migration.