웹서버(홈페이지)+ 메일서버 도메인서버 sudo apt -y install bind9 sudo apt -y install bind9utils nslookup cybersoldier.kr 192.168.0.223 sudo nano /etc/bind/named.conf sudo nano /etc/bind/named.conf.default-zones netstat -ant sudo apt -y install net-tools 1. sudo nano /etc/resolv.conf > /etc/bind/named.conf > /etc/bind/named.conf.default-zones > cybersoldier.kr.zone sudo cp db.local cybersoldier.kr.zone sudo systemctl restart named nslookup cybersoldier.kr 2. 포트포워딩으로 53번 열고 UDP 열기 FTP서버 Django~~~ nslookup cybersoldier.kr