Netflix Inc.

Phelps Watson Williams

Sergey Fedorov

Niosha Behnam

Donavan Fritz

Adam Mielke

In various embodiments, domain name system (DNS) servers are implemented on a content distribution network (CDN) infrastructure in order to facilitate centralized control of traffic steering. Each server appliance in the CDN infrastructure acts as both an authoritative DNS nameserver and a dynamic request proxy, and each such server appliance is assigned to one of multiple cloud computing system regions. The assignment of server appliances to cloud regions is based on latency measurements collected via client application probes and an optimization that minimizes an overall latency experienced by the client applications subject to constraints that the maximum traffic to each cloud region is less than a capacity constraint for that region, the maximum deviation of traffic to each cloud regions at any point in time is less than a given percentage, and the maximum deviation of traffic between direct and indirect paths is less than a given percentage.

Techniques for steering network traffic to regions of a cloud computing system

In various embodiments, a templated Domain Name System (DNS) nameserver respond to DNS to DNS requests, and a templated HyperText Transfer Protocol (HTTP) server respond to HTTP and Hypertext Transfer Protocol Secure (HTTPS) requests. The templated DNS nameserver responds to a DNS request with a predefined response specifying an Internet Protocol (IP) address associated with the templated HTTP server, based on a type of the DNS request. The templated HTTP server responds to an HTTP or HTTPS request with a redirection response specifying a default redirection Universal Resource Locator (URL), or a different URL if the default has been overridden. Domain management is simplified relative to conventional approaches using the templated DNS nameserver and the templated HTTP server. A new domain can simply be registered at a domain name registrar, and the templated DNS nameserver configured as an authoritative DNS nameserver at the domain name registrar.

Techniques for templated domain management

In various embodiments, a templated Domain Name System (DNS) nameserver respond to DNS to DNS requests, and a templated HyperText Transfer Protocol (HTTP) server respond to HTTP and Hypertext Transfer Protocol Secure (HTTPS) requests. The templated DNS nameserver responds to a DNS request with a predefined response specifying an Internet Protocol (IP) address associated with the templated HTTP server, based on a type of the DNS request. The tem plated HTTP server responds to an HTTP or HTTPS request with a redirection response specifying a default redirection Universal Resource Locator (URL), or a different URL if the default has been overridden. Domain management is simplified relative to conventional approaches using the templated DNS nameserver and the tem plated HTTP server. A new domain can simply be registered at a domain name registrar, and the templated DNS nameserver configured as an authoritative DNS nameserver at the domain name registrar.

Growing community of inventors

Los Gatos, CA, United States of America

Phelps Watson Williams