You have a domain "example.com," and you want to configure DNS to point "www.example.com" to a web server with IP address 203.0.113.1.Steps to Configure DNS:
Step 1 - Choose a DNS Provider:
Select a DNS service provider or use your own DNS server software. A few DNS service providers are Amazon Route53, GoDaddy, NameCheap.
Step 2 - Create DNS Records:
Create an A record that maps "www.example.com" to the IP address 203.0.113.1. This tells DNS where to find the web server for your website.
Step 3 - Set Name Servers:
Specify the authoritative DNS servers (name servers) for your domain. These servers will host your DNS records. You typically configure this with your domain registrar.
Examples of authoritative DNS servers include:
- ns1.example.com and ns2.example.com: These are hypothetical authoritative DNS servers for the domain "example.com." These servers store and provide DNS records for "example.com" and its subdomains.
- ns1.google.com: An authoritative DNS server used by Google for some of its domain names. This server stores and provides DNS records for Google's domains.
- ns1.cloudflare.com: An authoritative DNS server operated by Cloudflare, which hosts DNS records for domains using Cloudflare's DNS services.
- ns1.awsdns.com: Amazon Route 53's authoritative DNS servers, which store DNS records for domains using Amazon Route 53 services.
Step 4 - Propagation:
It may take some time (usually a few hours to a day) for DNS changes to propagate across the internet. During this period, DNS servers around the world update their records to reflect your changes.