The Domain Name System
The DNS is a critical component of the internet that acts as a directory for internet domain names and their corresponding IP addresses. Essentially, it acts as a telephone book for the internet, allowing you to associate a memorable and recognizable domain name (for example, www.grcmusings.com) with a series of numbers that make up the IP address (for example, 162.241.252.221
).
When you type a URL or domain name into your web browser, your computer sends a request to a DNS server to convert the domain name into an IP address. The DNS server then returns the IP address for the domain name, which the browser uses to connect to the website’s server and display the website’s content.
For example, if you type www.grcmusings.com into your web browser, the DNS server will translate the domain name into 162.241.252.221
, which is the GRCMusings site’s IP address. The browser then uses this IP address to connect to the website’s server...