CODEWITHSUNDEEP
amazon-web-servicesdnscname
Peter B
Peter B

Reputation: 1

Domain name setup without A Records

I am hosting content on AWS and want to configure my DNS settings so that both my @ record and www record point at my Elastic Load Balancer.

AWS recommends setting up domains using CNAMEs as the IP addresses can change.

All the documentation I have seen on the CNAME is that they deal with subdomains but not the primary domain itself (http://example.com ). The primary domain requires an A record and therefore must require an IP address.

I do not want to use an A Record to point the traffic to my Elastic Load Balancer as the IP address may change.

Any idea how I can get around this issue?

I am using Linode to manage my DNS.

Upvotes: 0

Views: 268

Answers (1)

Volkan Paksoy
Volkan Paksoy

Reputation: 6937

You can use a special record type in Route 53 called "Alias".

Q. Can I point my zone apex (example.com versus www.example.com) at my Elastic Load Balancer?

Yes. Amazon Route 53 offers a special type of record called an ‘Alias’ record that lets you map your zone apex (example.com) DNS name to your ELB DNS name (i.e. elb1234.elb.amazonaws.com). IP addresses associated with Amazon Elastic Load Balancers can change at any time due to scaling up, scaling down, or software updates. Route 53 responds to each request for an Alias record with one or more IP addresses for the load balancer. Queries to Alias records that are mapped to ELB load balancers are free. These queries are listed as “Intra-AWS-DNS-Queries” on the Amazon Route 53 usage report.

Source: https://aws.amazon.com/route53/faqs/

Just set the Alias to Yes and you will be able to choose your load balancer from the dropdown menu:

enter image description here

Upvotes: 1

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