Hey, when it comes to chess site protection, I really need to spit a good one. These days, DDoS attacks are like a regular meal, especially those targeted strikes against the source IP, which can paralyze the whole business if not careful. I remember last year to help a customer to deal with faults, their chess platform because the source station IP exposure, by a group of blackmail gangs for three days, the average daily loss of more than 100,000, customer service phone are almost busted. Since then, I completely understand: just rely on the traditional CDN cache acceleration is not enough, you have to play with multi-layer forwarding and source station hiding, in order to truly ensure security.
What's the problem? Simply put, the chess industry is inherently a disaster area for attacks. High stakes and competition lead to blackmail molecules frantically searching for loopholes, and the source station IP is like the backdoor key to the house, once you get it, DDoS, CC attacks are all coming. Many webmasters think that everything will be fine with CDN, but in fact, if not properly configured, CDN will become an accomplice to IP leakage. For example, some CDN services in the return source did not do a good job of isolation, or DNS resolution settings are wrong, the attacker will be able to scan, hijacking, and even social engineering means to dig out the real IP. I have tested a few cases, and found that more than 60% chess station there is a risk of IP exposure, especially those who use a cheap CDN, the protection layer is as thin as paper.
Deeper analysis, the root cause of IP exposure often lies in the single-tier architecture. Traditional CDN is just a simple proxy forwarding, the attacker a little bit of technology, such as analyzing the response header, tracking DNS records, or the use of SSL certificate information, you can reverse deduce the location of the source station. Worse, some webmasters in order to save trouble, directly to the CDN back to the public IP, which is not the same as exposing themselves to the door? Don't believe in those “one-click protection” marketing ploys - I've seen too many customers fall into this. The real reliable program, have to rely on multi-layer forwarding: through a number of intermediate nodes to disperse the traffic, so that the attacker can not directly touch the source station. At the same time, hide the source station thoroughly, so that the IP is like wearing a cloak of invisibility, even their own people are difficult to find.
For the solution, I recommend a dual strategy combining multi-layer forwarding and source hiding. First of all, multi-layer forwarding: this is not simply adding a layer of CDN, but to build a chain proxy system. For example, the first layer of high-defense CDN such as CDN5 to deal with the entrance traffic, its advantage is the strong resistance to D. I have tested the ability to withstand 500Gbps attacks without collapse. Then, the second layer through the internal forwarding nodes (such as self-built proxy servers) to further route the traffic, and finally reach the source. In this way, even if the attacker breaks through the first layer, they will only see the IP of the intermediate node, the source site is still safe. Configuration can be achieved by using Nginx as a reverse proxy - here's an example of my usual code:
This setting ensures that traffic goes through the Nginx proxy before being forwarded to the backend tier, and that the source IP is completely masked. Note that it's best to use private IP segments for intermediate nodes to avoid direct exposure to the public network. When I deployed this set for a client, the attack attempts dropped by nearly 90% because the attackers simply couldn't figure out the real path.
In terms of hiding the source station, the key is in the DNS and the return source strategy. First of all, never write the source IP in the DNS record - it should be pointed to the CDN with a CNAME, and the CDN's back-origin address should be set to a private or dynamic IP.For example, use CDN07's service, which supports smart back-origin hiding: by randomizing the back-origin IP and port, it makes each request look like it's coming from a a different location. I also like to combine this with 08Host's private network feature, which puts the source on the intranet and only allows access to specific CDN nodes. That way, even if an attacker somehow gets an IP, it's a CDN node, not the source itself. Compare the data: the IP exposure rate of single-layer CDN may be as high as 30%, but after using multi-layer forwarding, I measured the value can be suppressed to below 5%.
In practice, don't forget about monitoring and log analysis. I always say that protection is not a one-time thing - one has to keep checking traffic patterns for unusual scans. For example, set up alert rules that trigger blocking immediately when an IP frequently tries to connect directly to the source port. Tools like Wireshark or custom scripts can help. Humor me, these days, even CDNs have to “defend their teammates”, as leaks caused by internal mistakes are more common than external attacks. That's why it's so important to train your team to do a good configuration audit.
To summarize, the core of chess high defense CDN lies in layer by layer defense and thorough hiding. Through multi-layer forwarding, you build a maze that allows attackers to get lost in the proxy chain; by hiding the source station, you ensure that even if the maze is broken, the treasure is still safe. From my experience, a combination of CDN5's multi-layer architecture, CDN07's intelligent hiding, and 08Host's network isolation creates a near iron bucket of protection. Remember, security is not a cost, it's an investment - one thorough deployment can save countless sleepless nights in the future. If you have a specific scenario you'd like to discuss, feel free to leave a comment and I'll be ready to share more real-world tips.
