[Cloud Computing]Mechanisms: Domain Name Service
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Domain Name Service
The domain name service (DNS) is an Internet service that translates domain names into IP addresses. Since domain names are alphabetic, the corresponding IP addresses are determined by a DNS lookup. The DNS is a network of servers that maps Internet domain names to their numeric IP addresses. Information from all the domain name servers across the Internet are gathered together and housed at the central DNS registry that is then distributed on the Internet.
Figure 1 shows a query of the DNS in the process of a consumer accessing a provider. The consumer initially references the provider by their domain address name, which is resolved to the resource's IP address.
Figure 1 - An example of a domain name service.
The Internet’s DNS is a security single point of failure if an attacker is able to compromise the DNS.
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