2024년 1월 24일

    
sudo apt -y install openssh-server #이미우분투서버올릴때설치함
sudo apt -y install vsftpd
sudo apt -y install lamp-server^
sudo apt -y install lrzsz #파일전송프로그램
sudo apt -y install unzip #압축해제프로그램
sudo apt -y install xrdp 
sudo apt -y install bind9 bind9utils #DNS nslookup st.au
sudo apt -y install sendmail
sudo apt -y install dovecot-pop3d
sudo apt -y install dovecot-imapd
sudo apt -y install proftpd
sudo apt -y install nfs-kernel-server
sudo apt -y install samba samba-common smbclient cifs-utils
sudo apt -y install lftp
sudo apt -y install isc-dhcp-server
sudo apt -y install squid
sudo apt -y install roundcube
nano /etc/apache2/conf-enable/roundcube.conf


GNS - 20240124005

#R1
config t
interface FastEthernet0/0
ip address 111.111.111.254 255.255.255.0
no shutdown
exit

config t
interface Serial1/0
ip address 2.2.2.1 255.255.255.252
no shutdown
exit

ip route 222.222.222.0 255.255.255.0 2.2.2.2
exit


#R2
config t
interface FastEthernet0/0
ip address 222.222.222.254 255.255.255.0
no shutdown
exit

config t
interface Serial1/0
ip address 2.2.2.2 255.255.255.252
no shutdown
exit

ip route 111.111.111.0 255.255.255.0 2.2.2.1
exit


kali(해커) 
111.111.111.1
255.255.255.0
111.111.111.254
222.222.222.1

Ubuntu(서버)
222.222.222.1
255.255.255.0
222.222.222.254
222.222.222.1



-> sudo apt -y install bind9 bind9utils #DNS nslookup st.au

cd /etc/bind
cat /etc/bind/named.conf.options
nano /etc/bind/named.conf.options
dnssec-validation auto; > NO; #수정
recursion yes; #수정줄 바로 아래 추가
allow-query { any; }; #그 아래 바로 추가

systemctl restart named
systemctl enable named
systemctl status named

nano /etc/resolv.conf
nameserver 222.222.222.1 #수정

nslookup st.au #127.0.0.53에서 222.222.222.1로 바뀜

nano /etc/bind/named.conf.default-zones #locolhost 밑에 추가
zone "st.au" IN {
  type master;
  file "/etc/bind/st.au.zone";
};

named-checkconf

cd /etc/bind
touch st.au.zone
nano st.au.zone
www IN A 222.222.222.1
ftp  IN  A 222.222.222.1
mail  IN  A 222.222.222.1
ns IN A 222.222.222.1

systemctl restart named
named-checkconf
kali 프로그램 설치 및 DNS 실습
