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1 vote

A CNAME pointing to 2 different A Records set up with Primary/Secondary Failover Routing?

It's an old post but still showing up first in google, so it deserves a correct answer. Many DNS providers implement failover with healthcheck, including Route53. When you edit a CNAME on Route53, the ...
stephane.c's user avatar
3 votes
Accepted

Why a CNAME cannot exist with other records that have the same name as the CNAME?

Your last example is invalid not because "something is used first". It is invalid because it violates the logic behind the CNAME. The logic I am talking about is that CNAME defines the name ...
Nikita Kipriyanov's user avatar
4 votes

Why a CNAME cannot exist with other records that have the same name as the CNAME?

Your example is valid. What's not valid is Domain name ttl Class Record type Value cname.example.com 300 IN CNAME foo.example.org cname.example.com 300 IN A 192.0.2.1
vidarlo's user avatar
  • 9,610
5 votes

Why a CNAME cannot exist with other records that have the same name as the CNAME?

That the CNAME cannot coexist with other record types relates to this: Domain name TTL Class Record type Value host.example.com 300 IN CNAME fqdn.example.com host.example.com 300 IN A 192.0.2.1 ...
symcbean's user avatar
  • 22.5k

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