January 2017
Intermediate to advanced
258 pages
4h 53m
English
Content preview from Implementing DevOps on AWSBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Using Route53 ALIAS records
This is a special in-house type of DNS record specific to the Route53 service.
For an AWS user an Alias record is a great alternative to a CNAME (for supported resources).
Some of the main advantages are:
- Aliases resolve directly to an IP address, saving the extra lookup which a CNAME would require
- Alias records are supported at the zone apex, so you could create an alias which uses the top of a domain (for example
mydomain.com) - Alias records allow advanced Route53 features such as weighted/latency/geo routing and failovers
- There is no AWS cost associated with Alias lookups
Note
NB: A Route53 Alias record can currently only point to a limited set of AWS resources. For more information please see: http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/resource-record-sets-choosing-alias-non-alias.html ...
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