Redundant DNS

DNS redundancy is a strategy and a best practice for addressing the risk caused by DDoS attacks, configuration or software errors, or equipment failuresthis risk. It involves deploying a second DNS network that does not share the same infrastructure (servers, networks and data centers) as the first. The most common way to set up redundant DNS is via secondary DNS, where one DNS provider is set up as the primary DNS name server and the other as the secondary. There are, however, alternatives that could be better.