CoralCDN,网络通信网站,在线网站加速访问工具,网络,当用户访问已经使用了CDN服务的网站时,其解析过程与传统解析方式的最大区别就在于网站的授权域名服务器不是以传统的轮询方式来响应本地DNS的解析请求,而是充分考虑用户发起请求的地点和当时网络的情况,来决定把用户的请求定向到离用户最近同时负载相对较轻的节点服务器上。
由于大量的用户访问都由分布在网络边缘的CDN节点服务器直接响应了,这就不仅提高了用户的访问质量,同时有效地降低了源服务器的负载压力。
CoralCDN is a free and open content distribution network based around peer-to-peer technologies, comprised of a world-wide network of web proxies and nameservers. It allows a user to run a web site that offers high performance and meets huge demand, all for the price of a $50/month cable modem.
Publishing through CoralCDN is as simple as appending a short string to the hostname of objects URLs; a peer-to-peer DNS layer transparently redirects browsers to participating caching proxies, which in turn cooperate to minimize load on the source web server. CoralCDN proxies automatically replicate content as a side effect of users accessing it, improving its availability. Using modern peer-to-peer indexing techniques, CoralCDN will efficiently find a cached object if it exists anywherein the network, requiring that it use the origin server only to initially fetch the object once.
One of CoralCDNs key goals is to avoid ever creating hot spots in its infrastructure. It achieves this through a novel indexing abstraction we introduce called a distributed sloppy hash table (DSHT), and it creates self-organizing clusters of nodes that fetch information from each other to avoid communicating with more distant or heavily-loaded servers.CoralCDN,网页加速器,网站cdn加速访问。