The article explains how IP addresses and DNS work, why a centralized DNS design is problematic, describes the distributed three‑level DNS architecture, introduces DNS security with digital signatures, and details the rigorous key‑ceremony process that protects the ICANN root key.
Amid sanctions, Russia shifted all domestic sites to the .ru domain while Ukraine appealed to ICANN to sever Russia’s internet ties, prompting a neutral refusal, a surge of Anonymous‑led cyber attacks, DDoS assaults on the .ru TLD, and broader internet restrictions.
The article explains how the DNS system works, why there are only 13 logical root servers, how anycast and global mirrors keep the system resilient, and evaluates the realistic risk of a nation‑state like the United States tampering with root zone data, especially for Chinese .cn domains.
The article explains how DNS works, why there are only 13 logical root servers, how anycast distributes thousands of physical servers worldwide, the historical control the US has over most root servers, and what technical and policy measures China can use to protect its .cn domain from potential censorship.
Alibaba Cloud DNS senior engineer Guo Chuan, the sole Chinese participant selected for the ICANN64 Talent Program, delivered a keynote on DNS practice, highlighted stability and security challenges, discussed DoH/DoT, DNSSEC, IoT impacts, and emphasized collaborative governance for a resilient global internet infrastructure.
