DNS, DNS Server, DNS Zones, and DNS Records
What is DNS or DNS server? DNS DNS stands for Domain Name System or Domain Name Service, it is a service that helps you to access any website or URL on the Internet, there are thousands of websites and URLs are available over the Internet having corresponding IP addresses, so it is very difficult to memorize all those IPs, to overcome this issue, a name is associated with each IP address that can be memorized by humans easily. So, there is a mapping behind the scene and this mapping from the name or URL to IP or vice versa is handled by the DNS server. Whenever you type a name in the browser the request is passed to a DNS server which resolves the IP address and finds out the corresponding data over the Internet. You can find out the URL name from an IP or IP from a URL. The port used by the DNS is 53. DNS Server DNS server is basically a server running DNS services, every organization has a DNS server setup for its internal domain controller or user’s machine mapping. A DNS