Intro

0. Install

$ sudo apt update && sudo apt install bind9 bind9utils bind9-doc -y
$ systemctl status bind9  # bind9 service status
$ named -V  # cheeck bind9 config
... BIND 9.16.1-Ubuntu (Stable Release) <id:d497c32>

1. Config

1-1. DNS 설정

1-2. Name Server 등록

1-3. DNS 설정