Introduction: Why Your VPN Stops Working
In the era of total network control and DPI (Deep Packet Inspection), standard solutions for ensuring availability (like OpenVPN or classic Shadowsocks) are quickly blocked. Regulators have learned to analyze traffic, even when it’s fully encrypted.
In this article, we will examine the L-Security Cloud Tank architecture—a solution that makes blocking not just difficult, but economically and technically infeasible. Our approach combines protocol obfuscation with adaptive, geo-dependent Collateral Defense.
- The Protocol Shield: Defeating DPI
The goal is simple: make the traffic indistinguishable from ordinary website browsing.
Utilizing VLESS/V2Ray with WSS/TLS
We use the VLESS (VLess over TCP) protocol with the WSS (WebSocket Secure) transport layer, wrapped in TLS 1.3.
VLESS/V2Ray: A modern, lightweight protocol that minimizes metadata, making it unrecognizable.
WSS/TLS: Traffic is masked as a standard secure WebSocket request. For DPI systems, this looks like a standard HTTPS session on a popular website.
💻 Configuration Example (VLESS Placeholder):
JSON
{
"inbounds": [{
"port": 443,
"protocol": "vless",
"settings": {
"clients": [ { "id": "YOUR_UUID" } ],
"decryption": "none"
},
"streamSettings": {
"network": "ws",
"security": "tls",
"wsSettings": { "path": "/your_secret_path" }
}
}]
}
- The Infrastructure Shield: The Principle of Collateral Defense (Tanking)
Even if the protocol is perfect, its IP address can still be blocked. We solve this by hiding behind "digital tanks"—the largest global providers.
Multi-CDN Load Balancing and CIDR-Blocks
Reverse Proxy VM (Core Node): Your main server (Core Node) is deployed in a carefully selected CIDR-block (IP address range) of a cloud provider (e.g., AWS or GCP) that is widely used by banks, government bodies, and critical services.
Anycast IP Fronting: We use global CDNs (Cloudflare, Azure Front Door) as Reverse Proxies. All users only see the CDN's Anycast IP.
The Tanking Effect: Blocking the Anycast IP of Cloudflare or the CIDR-block of AWS would lead to massive collateral damage for thousands of legitimate services. This makes blocking economically impossible for the regulator.
- Modernization: Adaptive Geo-Defense (Geo-Aware Defense)
We enhance protection by adding regional intelligence.
Dynamic Switching to Local Tanks
If global CDNs are blocked in a specific country (as was the case with Telegram when Google/AWS were blocked), the system must switch to local, untouchable providers:
Geo-Monitoring: GeoDNS and distributed Health Checks are used to detect failures in a specific country (e.g., China).
Local Node: If blocking is detected in Region X, the DNS Load Balancer instantly reroutes traffic from Region X to a Reverse Proxy VM located in a local cloud (e.g., Alibaba Cloud or Yandex Cloud), which is associated with nationally critical resources.
Advantage: We always use the strongest and most "unblockable" asset in that specific jurisdiction.
⚙️ High-Level Deployment Instructions
Step 1: Core Node and Obfuscation (Protocol)
Deploy Core Node (VM) in a neutral jurisdiction.
Install V2Ray/VLESS configured with WSS/TLS on port 443.
Step 2: Global Shield Creation (Infrastructure)
Configure Reverse Proxying on Cloudflare, AWS CloudFront, and Azure Front Door.
Specify the Core Node's IP address as the Origin Server for all CDNs, using Full/Strict SSL.
Step 3: Adaptive Balancer Setup (DNS)
Use a DNS Load Balancer service (e.g., Route 53 Traffic Flow).
Set up A-records pointing to the Anycast IP of each CDN.
Configure Health Checks with a low failure threshold.
Step 4: Implementing Geo-Logic (Modernization)
Deploy Local VMs (e.g., in Alibaba Cloud).
Configure a Geo-Routing Policy in the DNS Balancer.
Apply the logic: IF the request is from [Country X], THEN route it to [Local Tank Y], ELSE route it to [Global Tank Z].
Discussion
The L-Security Cloud Tank is not just a tool; it is an architectural philosophy that shifts ensuring availability from "fighting filters" to economic and political coercion through the use of legal global infrastructure.
What ethical or technical challenges do you see in this model? Let's discuss in the comments! 👇
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