// Aula 1 - Criando o nosso Servidor DNS Master

# apt install bind9

# vim /etc/hosts

127.0.0.1       localhost
127.0.1.1       dns1.empresa.com.br   dns1

192.168.88.2    dns1.empresa.com.br   dns1

# vim /etc/hostname

	dns1.empresa.com.br.

# vim /etc/netplan/01-netcfg.yaml

search: [empresa.com.br]

# hostname

# hostname -f

# hostname -I

# cd /etc/bind

# ls -l

# vim /etc/bind/named.conf.options

listen-on port 53 { 192.168.88.2; };

# named-checkconf

# vim named.conf.local

zone "empresa.com.br" {
     type master;
     file "/etc/bind/direta.db";
};

# named-checkconf

# systemctl status bind9