RockCloud-基石云安全-官方博客
Video CDN Abuse and DDoS Attacks: Anti-Leeching, CC Protection, and Unmetered Billing Selection
How video platforms can defend against PCDN traffic abuse, content leeching, and Tbps-scale DDoS/CC attacks by choosing a video CDN with anti-leeching, Multi-DRM, same-path high-defense scrubbing, and fixed-peak unmetered billing.
Why Non-Filing CDN Access from Mainland China Is Often Slow: Return Routes, High-Defense Scrubbing, and a No-NS-Change Onboarding Solution
Many businesses choose non-filing CDNs to skip the lengthy ICP filing process, but after launch they often face evening peak lag for mainland users, origin servers overwhelmed by CC attacks, and huge bills from traffic-based billing being abused. This article analyzes from three dimensions—cross-border return routing, same-path DDoS/CC scrubbing, and smooth CNAME onboarding—how to build a non-filing acceleration defense line that balances mainland access speed and attack resistance.
Why DDoS Attacks Cause Mass Disconnects in Games: How Game Shield Switches Nodes Without Dropping Connections
Real-time competitive and card games facing DDoS or TCP/UDP protocol attacks often suffer not just packet loss but mass disconnections, state rollbacks, and reconnection avalanches. This article breaks down three core protection mechanisms of Game Shield: private protocol encapsulation, distributed edge forwarding, and seamless node switching under attack, enabling full TCP/UDP protocol forwarding and preventing disconnections.
How Long Does a High-Defense Line Switch Take Effect: DNS Changes Take Minutes to Hours, BGP Steering Takes Seconds, and Always-On Access Requires No
The time it takes for a high-defense switch to take effect depends on how traffic is steered to the high-defense network. DNS changes are affected by TTL and local LocalDNS caches, typically taking a few minutes to tens of minutes, and in some cases hours. BGP route steering generally takes a few seconds to 60 seconds. When the business is already on the high-defense link, adjusting policies only takes seconds. This article covers two scenarios—planned cutover and active attack—and provides the operational sequence to shorten the wait and methods to confirm whether the switch has taken effect.
How Much Traffic Can BGP High-Defense Mitigate: What Determines the Limit, What Happens When Exceeded, and How Much to Buy
The mitigation capacity of BGP high-defense has no universal number: a single node typically handles tens to hundreds of Gbps, while Anycast distributed architectures can reach several Tbps across the network. What truly determines how much you can withstand are node bandwidth, scrubbing device processing power, and the committed and elastic specifications in your contract; exceeding the limit results in IP blackholing. This article provides steps to estimate mitigation specifications and questions to ask during procurement.
