I always forget about it, so I'm gonna write it down to cheat quickly someday 😝
record which replaces from domain to IP address.
most basic record
kaziu.jp. IN A 192.534.0.3 www.kaziu.jp. IN A 192.534.0.3
record host name of mail server
kaziu.jp. IN MX 10 mail.kaziu.jp.
↑ it means mail.kaziu.jp handles mail address ~~~@kaziu.jp
🤔 What is this 10 ??
it means priority, at first 10, and 20, 30, 40 ...
replace domain to other domain
kaziu.jp. IN A 192.534.0.3 www.kaziu.jp. IN CNAME kaziu.jp.
↑ if you change kaziu.jp, you would modify only one part
kaziu.jp. IN TXT "some info, I'm drank man"