RockCloud-基石云安全-官方博客
DNS Pollution Cleaning: Say Goodbye to the Self-Salvation Myth of Making Users Change DNS, and Build a Server-Side Recovery and High-Defense Accelerat
When your business encounters cross-network spoofed responses, BGP route hijacking, and recursive cache poisoning by regional ISPs, instructing end users to change public DNS or configure DoH is completely ineffective in recovering lost public traffic. This article dissects the mechanisms of DNS pollution and cache poisoning from the underlying resolution chain, and explores how RockCloud's DNS pollution cleaning, seamless 301 redirects, CN2 three-network direct connection, and high-defense CDN architecture can achieve in-place business recovery and long-term anti-hijacking without changing domain names or modifying NS.
Why Domain Interception Recovery Can't Rely Only on Appeals or Changing Domains: A Closed-Loop Architecture from In-Place Recovery to Preventing Repea
When facing DNS poisoning, regional ISP blocking, and WeChat/QQ red-shield interception, relying solely on manual appeals is slow and has a low success rate, while abandoning a domain for a new one causes APP API disconnections and wasted ad spend. This article analyzes the technical causes of frequent 'secondary interception' after domain recovery or switching, and combines RockCloud blocking/poisoning recovery, high-defense CDN, and intelligent WAF to provide a closed-loop solution for in-place recovery without changing domains and long-term anti-blocking protection.
No-ICP CDN Migration and Second-Selection Guide: Saying Goodbye to Evening Peak Stalls, Misblocked APIs, and Hidden Renewal Bills
Many teams hosting their origin servers overseas are forced to switch CDN providers after their first no-ICP CDN causes mainland China evening peak stalls, misblocked login and payment APIs, huge traffic bills after attacks, or domain blocking. This article breaks down the second-selection criteria for no-ICP high-defense CDNs across four dimensions: China-ring three-network direct-connect architecture, fine-grained smart WAF allowlisting, fixed peak billing, and NS-free smooth switching.
API and Dynamic Interface CC Defense: Tackling Low-Frequency Slow Attacks, Residential Proxies, and High-Concurrency API Abuse
CC attacks increasingly use massive residential proxies to launch low-frequency slow requests, precisely targeting high-consumption dynamic interfaces such as APIs, login, search, and AI inference. This article analyzes why traditional static rate limiting and pop-up verification fail in API scenarios, and provides a CC defense solution that balances anti-abuse and business continuity by combining high-defense CDN, machine learning WAF, security tokens, and unlimited request billing.
How to Implement CN2 Line Acceleration: Why a CN2 Server Alone Is Not Enough, and Why You Need Multi-Line Direct Connection and High-Defense CDN Archi
Many cross-border businesses serving mainland China find that even with expensive overseas CN2 servers, they still face peak-hour lag for China Unicom and China Mobile users, burst bandwidth limits, and blackholing under attack. This article analyzes from the underlying network routing and security architecture why decoupling the origin from the acceleration layer, and using ring-China nodes with Telecom CN2 GIA, Unicom AS9929, and Mobile CMI multi-line direct connections plus high-defense CDN, is the preferred solution balancing extreme speed and business continuity.
