Red Hat Certification Exam Question:
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How to Successfully resolve to server1.example.com where your DNS server is 172.24.254.254

Answer:

DNS is the Domain Name System, which maintains a database that can help your
computer translate domain names such as www.redhat.com to IP addresses such as
216.148.218.197. As no individual DNS server is large enough to keep a database for the
entire Internet, they can refer requests to other DNS servers.
DNS is based on the named daemon, which is built on the BIND (Berkeley Internet
Name Domain) package developed through the Internet Software Consortium
Users wants to access by name so DNS will interpret the name into ip address. You need
to specify the Address if DNS server in each and every client machine. In Redhat
Enterprise Linux, you need to specify the DNS server into /etc/resolv.conf file.
After Specifying the DNS server address, you can verify using host, dig and nslookup
commands.

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