The server name refers to the server component within the Domain Name System (DNS) architecture.
In more detail:
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Core Function: The primary role of a server name, operating within the DNS, is to translate human-readable domain names (like
example.com) and hostnames (likewww.example.com) into the numerical IP addresses that computers use to communicate with each other over the internet (like192.0.2.1). -
Importance: Server names are critical for directing internet traffic. They tell computers where to find the server hosting a particular website or service. Without server names resolving domain names to IP addresses, web browsers would not know where to locate the servers hosting websites, and email clients wouldn't know where to deliver email.
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DNS Hierarchy: The DNS system is hierarchical, meaning that different servers are responsible for different parts of the overall domain name resolution process. A DNS query might traverse multiple DNS servers, each handing off the request to the next authoritative server until the correct IP address is found.
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Example Scenario: When you type a website address like
www.example.cominto your browser, your computer queries a DNS resolver server (often provided by your internet service provider). This resolver then communicates with other DNS servers, eventually finding the server authoritative for theexample.comdomain. That server provides the IP address associated withwww.example.com, allowing your browser to connect to the correct web server. -
Beyond Websites: Server names aren't just used for websites. They are essential for any service accessible via a domain name, including email, file transfer (FTP), and other network applications.
