PREFERENTIAL SELECTION OF IP PROTOCOL VERSION WITH DOMAIN NAME MATCHING ON PROXY SERVERS

摘要

Systems and methods for the preferential selection or blocking of Internet Protocol (IP) version addresses, e.g., IPv4 and IPv6 addresses, are provided. During a process where address or domain name resolution is performed, an entity may access a domain bypass list to ascertain whether or not to proceed with requests utilizing an IPv4 address, an IPv6 address, or neither. Such a list may be dynamically or manually created and/or updated such that known issues associated with the use of a particular type of IP version address can be avoided for subsequent resolution requests to access network resources such as web pages, DNS entries, etc.

主权项

1. A method, comprising;
a proxy server receiving a domain name service (DNS) request for a domain; the proxy server determining whether the domain matches an entry stored within a domain bypass list; upon a determination that the domain does not match at least one entry stored within the domain bypass list, looking up the domain in a cache of the proxy server; and upon a determination that the domain does match at least one entry stored within the domain bypass list, determining whether to allow or block one or more types of traffic based upon a preferentially selected Internet Protocol (IP) version.