리눅스 <br>
<hr>
<strong>0. 초기 서버 환경</strong> <br>
(*)설치 완료후에 DMZ_Server_B.ova 파일로 저장하기 <br>
ip addr <br>
ifconfig <br>
네트워크 환경은 NAT <br>
10.0.2.15(가짜 IP) <-(NAT)-> 192.168.0.XXX (진짜 IP)<br>
sudo netstat -ant <br>
sudo apt -y install net-tools <br>
sudo netstat -ant <br>
80번 포트 확인 안됨 <br>
sudo apt -y install openssh-server<br>
sudo apt -y install lrzsz <br>
sudo apt -y install unzip <br>
sudo apt -y install networkmanager <br>
<hr>
<strong>1. 웹 서버 구축</strong> <br>
sudo apt -y install lamp-server^<br>
sudo netstat -ant <br>
80번 포트 확인가능 <br>
sudo systemctl start apache2<br>
sudo systemctl start mysql<br>
sudo systemctl enable apache2<br>
sudo systemctl enable mysql<br>
sudo ufw allow 80<br>
sudo ufw allow 3306<br>


cd /var/www/html<br>
sudo index.php<br>
<?php<br>
	echo phpinfo();<br>
?><br>
http://192.168.0.XXX/index.php 확인<br>
<hr>
<strong>2. 도메인 서버 구축</strong> <br>
[클라이언트]<br>
윈도우 10 : 네트워크 환경으로 들어가서 도메인 서버: 192.168.0.XXX(23)<br>
nslookup lsw.kr <br>

[서버]
sudo apt -y install bind9 bind9utils<br>
sudo nano /etc/bind/named.conf.options<br>
recursion yes;<br>
allow-query { any; };<br>
sudo systemctl start bind9<br>
sudo systemctl enable bind9<br>
sudo systemctl status bind9<br>
sudo ufw allow 53<br>
dig @10.0.2.15 www.lsw.kr(본인꺼)<br>
nslookup lsw.kr<br>
sudo nano /etc/resolv.conf <br>
nameserver ? <br>
nano /etc/bind/named.conf<br>
zone "" IN {<br>
<br>
}<br>
include "/etc/bind/named.conf.default-zones"; <br>

named-checkconf<br>
cd /etc/bind<br>
touch lsw.kr.zone<br>
<hr>
<strong>3. 메일 서버 구축</strong> <br>
3.1 샌드메일 구축시
sudo apt -y install sendmail <br>
nano /etc/hostname<br>
nano /etc/mail/local-host-names <br>
nano /etc/bind/named.conf <br>
mail IN	A XXX.XXX.XXX.XXX<br>
sudo apt -y install dovecot-pop3d<br>
sudo nano /etc/mail/sendmail.cf<br>
sudo nano /etc/mail/access<br>
naver.com RELAY<br>
naver.com RELAY<br>
naver.com RELAY<br>
makemap hash /etc/mail/access < /etc/mail/access<br>
sudo nano /etc/dovecot/dovecot.conf <br>

3.2 postfix 구축시


연습용 서버(막서버)<br>
B반<br>
접속방법<br>
ssh jeonjucom.kr 22061 (master/123456) <br>
ssh jeonjucom.kr 22062 (master/123456) <br>
ssh jeonjucom.kr 22063 (master/123456) <br>
ssh jeonjucom.kr 22064 (master/123456) <br>
ssh jeonjucom.kr 22065 (master/123456) <br>
ssh jeonjucom.kr 22066 (master/123456) <br>
ssh jeonjucom.kr 22067 (master/123456) <br>
ssh jeonjucom.kr 22068 (master/123456) <br>
ssh jeonjucom.kr 22069 (master/123456) <br>
ssh jeonjucom.kr 22070 (master/123456) <br>
ssh jeonjucom.kr 22071 (master/123456) <br>
ssh jeonjucom.kr 22072 (master/123456) <br>
ssh jeonjucom.kr 22073 (master/123456) <br>
ssh jeonjucom.kr 22074 (master/123456) <br>
ssh jeonjucom.kr 22075 (master/123456) <br>
ssh jeonjucom.kr 22076 (master/123456) <br>