I am adding a new google app engine project and trying to map it to a subdomain.
I have already created a CNAME which maps
newproject.appsport.com, and I am able to use it in 'App Engine' -> 'Settings' ->'Custom domains'.
But once the mapping is finsihed, the same screen shows the following messages:
Configure resource records on your domain registrar Have your domain registrar add the following resource records for mycompany.com: Type Data Alias A 184.108.40.206 A 220.127.116.11 A 18.104.22.168 A 22.214.171.124 AAAA 1997:2340:4801:32::15 AAAA 1997:2340:4801:34::15 AAAA 1997:2340:4801:36::15 AAAA 1997:2340:4801:38::15 CNAME ghs.googlehosted.com newmachine
I haven't seen this message before. As a matter of face, no such A and AAAA were created for other existing GAE projects.
My questions are:
What is the implication of NOT adding these records to my DNS server?
What purpose do they serve? Is it simply to provide a reverse IP lookup?