Shulou(Shulou.com)06/03 Report--

In the era of Internet +, cloud computing cloud service has gradually replaced the traditional IT as the standard for enterprises. More and more webmasters use cloud service solutions such as cloud server rental, as well as defensive cloud servers, which we often call high-defense cloud servers. What is a high defense cloud server and what features it supports.

The cloud server we are familiar with is an important part of cloud computing and a service platform that provides comprehensive business capabilities for all kinds of Internet users. It can integrate the three core elements of network, storage and computing together, so as to provide customers with a series of Internet services and become a popular server with reliability, security, stability, self-service, fast backup and other functions, so what is the high-defense cloud server?

High-defense CVM is a CVM that can provide professional DDoS defense features. It mostly adopts the method of cluster defense, and attacks are directly hit on the server. After activating a high defense cloud server, you can enjoy the configuration, bandwidth and protection resources of the server. The basic defense peak is 30 GB, and up to 500 GB of DDoS and cc cleaning capabilities are provided. Because Tengyou CVM uses a distributed architecture with strong disaster recovery capability and avoids the impact of a single point of failure, the system is more stable and allows users to upgrade at any time and flexibly adjust server configuration and defense peak value.

What are the features of high defense cloud servers?

Cloud services support hot migration

The real high-defense CVM supports hot migration. Even if the hardware of an underlying server fails, user business can be migrated to other CVM online, and the migration process does not affect the normal operation of the website. Once a hardware failure such as hard disk damage occurs in a fake CVM, you can only manually transfer the data backup to another server to restore the work, and only after you have completed the migration work can the website resume normal access.

Physical architecture support of the host

The bottom layer of a real high-defense cloud server is composed of a large-scale server cluster, which forms a massive pool of computing, storage and network resources in the cloud, and the user needs are allocated as much as possible, thus forming an efficient use of resources. On the other hand, the fake CVM is served by an independent physical server, and the hardware failure cannot be repaired automatically.

Data backup and storage

High defense cloud servers are deployed in the cloud resource pool built by a large number of server clusters and are network-based distributed data storage without a single point of failure. Support snapshot backup strategy, can write multiple data in real time, even if user data is lost or mistakenly deleted, it can also quickly schedule backup and restore online, which is incomparable with traditional backup methods. It is difficult to provide real-time snapshot backup for fake CVM leasing. The most common way to handle this is for the administrator to export the backup data, repair it and then re-import it.

Speed of recovery under attack

High-defense CVM supports rapid reconstruction of different nodes, which means that even if the computing node is abnormally interrupted or damaged, the virtual machine can be rebuilt through other different nodes in a very short time without affecting data integrity. When the DDoS attack stops or the traffic is below the defense peak, the blocking status of the system is automatically lifted, there is no need to wait, and the service unavailability time is reduced.

Ordinary CVM itself does not have a defense feature, and some service providers may provide some low basic defenses. Unlike high-defense cloud servers, they have a certain defense capability. It is important to distinguish between genuine and fake high-defense cloud servers to see if they support the above four features.

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