US Patent 9294433 Multiple-master DNS system
Patent 9294433 was granted and assigned to 8X8, Inc. on March, 2016 by the United States Patent and Trademark Office.
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One or more embodiments provide a system and method for DNS that is resistant to losses of network connections. In some particular embodiments, DNS servers are operated to maintain consistency of DNS records between the multiple master servers in response to connection failure. Each master DNS server monitors network connectivity by periodically testing network connections of the master server (e.g., to other master servers) to determine whether the master DNS is isolated in a manner that prevents updates from being distributed between the master DNS servers. In response to detecting network isolation of the master DNS server, the master DNS server is configured to enter the isolation mode, in which the master DNS monitors the status of connections and takes appropriate actions to update and/or recover DNS data when connections are restored.
US Patent 09294433 Multiple-master DNS system US Patent 9294433 Multiple-master DNS system
US Patent 09294433 Multiple-master DNS system
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