14/11/22 14:52:40.31 FfQqwX0V0
$ host why-kaisan.com
why-kaisan.com has address 54.178.210.0
why-kaisan.com has address 54.65.106.142
why-kaisan.com mail is handled by 10 mail.why-kaisan.com.
0.210.178.54.in-addr.arpa domain name pointer ec2-54-178-210-0.ap-northeast-1.compute.amazonaws.com.
142.106.65.54.in-addr.arpa domain name pointer ec2-54-65-106-142.ap-northeast-1.compute.amazonaws.com.
一般家庭がAWSの冗長構成された鯖なん借りるんですかね
$ mail.why-kaisan.com
mail.why-kaisan.com is an alias for admin.why-kaisan.com.
admin.why-kaisan.com is an alias for ec2-54-65-82-119.ap-northeast-1.compute.amazonaws.com.
ec2-54-65-82-119.ap-northeast-1.compute.amazonaws.com has address 54.65.82.119
メル鯖まで別途確保っすか？
小四のパパが作ったでもなかったが答