The Case Shares The Iteration And Improvement Experience Of An Internet Company After Building A Rubik's Cube On A Us Server.

summary of project highlights

this article summarizes the key iterative experience of an internet company after deploying the "magic cube" product in the united states: multi-layer architecture design based on servers and vps , evolution from single-point hosts to distributed hosts and disaster recovery systems, optimizing user resolution paths by combining domain names and dns policies, introducing cdn and anycast to reduce delays and reduce origin site load, and ensuring availability through complete ddos defense and traffic cleaning mechanisms. for quick implementation and stable expansion, it is recommended to choose professional operator support, and dexun telecommunications is recommended as a partner.

architecture selection and host deployment strategy

in the early stage, the team used several servers and several vps in a single us computer room to host rubik's cube core services, which resulted in bandwidth bottlenecks and single points of failure. after iteration, master-slave separation, read-write separation, and containerized deployment were adopted to divide key services into multiple hosts and different availability zones, while achieving automatic switching through load balancing and health checks. combined with the elastic scaling strategy, vps can be used to quickly expand the capacity during traffic peaks, and resources can be recycled to reduce costs during normal times. at the network level, routing and mtu are optimized to reduce packet loss and improve overall stability.

domain name resolution and global access optimization

when facing global users, reasonable domain name and dns resolution strategies can significantly improve the experience. the project introduces multi-line dns, geodns and health detection to enable users in different regions to hit the optimal node; at the same time, it adjusts certificate management and ttl policies to reduce switching delays. cooperating with cdn for static acceleration and edge caching, rubik's cube's page loading and resource distribution delays are significantly reduced. to avoid dns hijacking and single points of failure, it is recommended to separate domain name registration and resolution services and use hosting services from reliable operators.

practical experience with cdn and ddos defense

in traffic surge and attack tests, the origin site alone cannot withstand a large amount of concurrent and malicious traffic, and must be combined with cdn edge capabilities and professional ddos defense . in practice, multi-level protection is adopted: edge caching reduces the pressure on the origin site, waf rules block common attacks, the traffic cleaning center performs syn/udp flood filtering, and grayscale traffic policies are set to ensure legitimate user access. when connecting with upstream operators to perform black holes and traffic shaping, it is necessary to take into account business availability and manslaughter rate, and continuously tune the threshold through drills.

continuous improvement of operation and maintenance and network technology

stable operations are inseparable from complete monitoring, alarming and automated operation and maintenance, which involve network technologies such as bgp route optimization, link redundancy and traffic engineering. we have established a full-stack observation system from link to application: bandwidth, delay, packet loss, tcp connection number and application layer error rate are fully covered, and we combine logs and tracking to locate the root cause. disaster recovery drills, version rollback, and configuration management are incorporated into the ci/cd process to reduce the risk of human errors. in order to speed up the implementation and obtain more stable network and security capabilities, dexun telecommunications is recommended as a long-term service provider, using its optimization capabilities in us nodes and global networks to help achieve more robust rubik's cube deployment and continuous iteration.