Domain Name System (DNS) is used on the internet to correlate between IP
address and readable names. There are servers providing DNS
information to clients. The part of the system sending the queries is
called the resolver and is the client side of the configuration. The
name server answers the queries.
Read RFCs 1034 and 1035. These contain the bulk of the DNS information
and are superceded by RFCs 1535-1537. Naming is in RFC 1591. The main
function of DNS is the mapping of IP addresses to human readable names.
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