How Hostname Works?

 
A hostname is a human-readable string that is used to identify a device on a network. The hostname resolves to an IP address, which is a numerical identifier that is used by other devices on the network to communicate with the device.


The hostname of a device is typically set during the device's initial configuration and can be changed later if necessary. Hostnames are often used instead of IP addresses because they are easier to remember and provide a more meaningful identifier for the device.


When a device on a network wants to communicate with another device, it looks up the hostname of the device in a local or remote domain name system (DNS) server. The DNS server resolves the hostname to an IP address and returns the IP address to the device, which can then use it to communicate with the other device.


Hostnames play an important role in Internet infrastructure and are used for a variety of purposes, including providing a human-readable identifier for websites, email servers, and other Internet-connected devices. By using hostnames instead of IP addresses, network administrators can make it easier for users to find and communicate with devices on the network, and can also make it easier to manage and reconfigure networks as needed.