Route 53

Overview

• Route53 is a Managed DNS (Domain Name System)

• DNS is a collection of rules and records which helps clients understand how to reach a server through URLs.

• In AWS, the most common records are:

  • www.google.com => 12.34.56.78 == A record (IPv4)

  • www.google.com => 2001:0db8:85a3:0000:0000:8a2e:0370:7334 == AAAA IPv6

  • search.google.com => www.google.com == CNAME: hostname to hostname

  • example.com => AWS resource == Alias (ex: ELB, CloudFront, S3, RDS, etc...)

Diagram for A Record

Routing Policies

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