The resolver
TCP/IP protocols rely upon IP addressing to reach other hosts in a network to communicate. For ease of use, instead of using the IP addresses represented by numbers, they are sometimes mapped to easy-to-remember names. Typically, the names are assigned to the IP address of the servers that many users can access, such as web servers, FTP servers, and TN3270 servers.
The resolver function allows applications to use names instead of IP ...
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