09/12/2025
The Domain Name System is not just the front door to the internet – it is used to help network operators identify and manage infrastructure. While a domain name like example•com might be used to identify a website, DNS names are also assigned to other network components including router interfaces, switches, each network server interface, and for transient network clients like laptops and tablets.
Most enterprises will have more DNS names than unique IPv4 addresses, with some names serving as aliases for others. Each IP address has a corresponding reverse DNS entry pointing at a preferred name.
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