Step # 1: Open /etc/nf file: # vi /etc/nf Steps to configure Linux as DNS client, first login as a root user (use su command): The nf file typically contains the IP addresses of nameservers (DNS name resolvers) that attempt to translate names into addresses for any node available on the network. The process of converting domain names to IP addresses is called “resolving.” In Linux and Unix like computer operating systems, the /etc/nf configuration file contains information that allows a computer connected to the Internet to convert alpha-numeric names into the numeric IP addresses that are required for access to external network resources on the Internet. You want to setup Linux to browse net or run network services like www or smtp then you need to point out to correct ISP DNS servers: /etc/nf file This file defines which name servers to use. To configure Linux as DNS client you need to edit or modify /etc/nf file. DNS (domain name service is accountable for associating domain names with ip address, for example domain is easy to remember than IP address 202.66.66.12) provides better name resolution. If you have small network, use /etc/hosts file. Local name resolution is done via /etc/hosts file.
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