Your website is attacked, how does CDN help you defend? [Simply put: five steps] ✅ Step 1: Hide the source IP to prevent being bypassed
One of the biggest functions of CDN is to make others "invisible" your real source IP.

When the attacker attacks your domain name, he actually attacks the CDN node, not your server.

The premise is that your source IP is not leaked (this is very important, and I will explain how to check it below).
z Step 2: CDN automatically resists DDoS (traffic attacks)
For example, if an attacker releases hundreds of thousands of zombies and hundreds of Gbps of traffic to your website, CDN will:

Directly "clean" these traffic at the edge node;

Automatically dispatch global nodes to relieve pressure when the attack volume is extremely large;

For example, Cloudflare, Tencent Cloud, and Alibaba Cloud all have "cleaning centers" to do this.

📌 So the core of the website not hanging is that the attack is withstood by the CDN and does not hit your source site.

Advantages of zCDN nodes:

Accelerate access: content is closer to the user and loads faster.

Reduce pressure on the source station: most requests do not need to access the source station.

High concurrency resistance: distributed architecture, supports a large number of requests.

High stability: if a node has a problem, you can switch to another node.

Do you need to know about a specific CDN service provider, deployment method, or the architectural details of a CDN node?

zDon't question whether we can resist attacks
Don't question our technology
Don't question our professional ethics
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High-defense CDN Focus on network security for 5 years
Asia-Pacific region acceleration High-defense DDOS defense
Highest resistance to 800GDDOS in the mainland
Overseas 1600GDDOS
Ignore mutation CC attack http https attack
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Our high-defense nodes have never been down
24-hour after-sales service and extremely fast response, all year round

In terms of product features, the first point is to completely separate the functional module from the support module to save energy and reduce emissions. The whole machine is powered by a set of redundant power supplies, combined with the power load dynamic adjustment technology, the power conversion efficiency is as high as 94% or more, and the heat dissipation is centralized by the fan wall on the back of the cabinet. Through the integration of power supply and heat dissipation, the SR whole cabinet server reduces the operating power consumption by more than 10% compared with ordinary rack servers.

In terms of technical specifications, the Inspur SR whole cabinet server supports three 1U rack-mounted Gigabit or 10 Gigabit switches. The heat dissipation module is located at the back of the cabinet, fully equipped with 27 fans, divided into 9 groups. Each group has a fan frame, corresponding to the heat dissipation of the four nodes in the front. The size of a single fan is 140mm*38mm, and the fan and fan frame support tool-free hot swapping. The RMC centralized management module is integrated in the middle of the cabinet, which supports power supply, fan, node status monitoring, log recording and fault alarm, and node asset management.

zFirst, look at the functional features

Excellent performance: Supports the new generation of Intel® Xeon® Scalable Processors, up to 8 cores, up to 128G memory, and a frequency of up to 2666MT/s, providing powerful computing performance, higher core counts, and larger memory capacity. High-speed I/O bandwidth and optimized HD image processing capabilities provide content creators with an excellent user experience.

High efficiency, energy saving and low cost: The maximum CPU power consumption is only 95W, and it supports 400W or 550W 1+1 redundant power supply. It has passed the energy-saving and environmental protection certification of CELP, CECP in China and Energy Star V3.0 in North America. While ensuring working performance, it can reduce energy consumption and operation and maintenance costs to a greater extent. It is especially suitable for small and medium-sized enterprises and small work nodes.

Flexible configuration: With a compact appearance and a depth of only 550mm, it can be placed in an 800mm deep cabinet, providing more efficient IT deployment capabilities for small and medium-sized enterprises. It supports multiple storage adaptability, and the hard disk bay provides both hot-swappable and non-hot-swappable solutions, while supporting built-in M.2 hard disks. It supports onboard dual Thousand Networks and an additional 2 PCIe3.0 slots to meet customers' various needs for system functions and performance. It supports a total of 6 USB ports, 2 VGA ports and 2 DP ports, providing a maximum of multiple IO ports, which can flexibly adapt to different scenario requirements.

Processor: Supports 1 Mehlow (Coffee Lake) Intel® Xeon® E series scalable processor. Supports up to 8 cores. Maximum frequency 4.0GHz. Maximum power 95W.

Memory: Supports up to 4 DDR4 2666 MT/s memory. Supports UDIMM, maximum support 128G (single 32G).

Storage: Supports hot-swap: supports up to 4 3.5”/2.5” SATA/SAS disks. Supports non-hot-swap: supports up to 4 3.5”/2.5” SATA/SAS disks. Built-in support for 1 SATA/PCIe M.2 SSD hard drive.

Storage controller: Mainboard integrated SATA controller, supports RAID 0/1. Standard PCIe RAID controller RAID 0/1/5/6/10.

Processor: Supports 1 Mehlow (Coffee Lake) Intel® Xeon® E series scalable processor. Supports up to 8 cores. Maximum frequency 4.0GHz. Maximum power 95W.

Memory: Supports up to 4 DDR4 2666 MT/s memory. Supports UDIMM, maximum support 128G (single 32G).

Storage: Supports hot-swap: supports up to 4 3.5”/2.5” SATA/SAS disks. Supports non-hot-swap: supports up to 4 3.5”/2.5” SATA/SAS disks. Built-in support for 1 SATA/PCIe M.2 SSD hard drive.

Storage controller: Mainboard integrated SATA controller, supports RAID 0/1. Standard PCIe RAID controller RAID 0/1/5/6/10.