Chapter 24. DNS/BIND: Tracking Domain Names and Addresses
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DNS (Domain Name System) maps domain names to IP addresses and vice versa and reduces the need for humans to work with IP addresses, which, with the introduction of IPv6, are complex. The DNS specification defines secure, general-purpose databases that hold Internet host information. It also specifies a protocol that is used to exchange this information. Further, DNS defines library routines that implement the defined protocol. Finally, DNS provides a means for routing email. Under DNS ...
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