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This article introduces the relevant knowledge of "the application scenario of cloud server vpc". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Application scenarios of CVM vpc:

Managed application

You can host external service applications in VPC, and you can control Internet access by creating security group rules, access control whitelists, and so on. You can also isolate the access control between the application server and the database, deploy the Web server in a subnet that can access the public network, and deploy the database of the application in a subnet that does not configure public network access.

Hosting applications that access the public network

You can host applications that require active access to the public network in a subnet in VPC and route their traffic through a network address translation (NAT) gateway. By configuring SNAT rules, instances in the subnet can access the Internet without exposing their private network IP addresses, and can replace the public network IP at any time to avoid external attacks.

Build a hybrid cloud

VPC provides a private network connection that extends the local network architecture by connecting the local data center to the VPC. In this way, you can seamlessly migrate local applications to the cloud without having to change the way your applications are accessed.

The virtual switch of the CVM can build a proprietary network environment for users, and the virtual switch is used to build a logically isolated, private, self-manageable virtual network environment (VPC) on the cloud platform.

The CVM connected to the virtual switch in the same cluster can communicate with each other in the private network; unicast, multicast and broadcast communication are supported, and the access speed is fast. You can freely configure IP addresses and network segments in VPC, set up cluster systems freely, and configure advanced applications such as NAT gateways and VPN services.

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