Kali Linux - 네트워크

ifconfig

┌──(kali㉿kali)-[~]
└─$ ifconfig 
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.133  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::20c:29ff:feb4:e0a7  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:b4:e0:a7  txqueuelen 1000  (Ethernet)
        RX packets 44  bytes 6458 (6.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 37  bytes 4132 (4.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4  bytes 240 (240.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4  bytes 240 (240.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

                                                                                                                                                             
┌──(kali㉿kali)-[~]
└─$

▶ IP 주소 변경

┌──(kali㉿kali)-[~]
└─$ sudo ifconfig eth0 192.168.10.200
                                                                                                                                                             
┌──(kali㉿kali)-[~]
└─$ ifconfig                    
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.10.200  netmask 255.255.255.0  broadcast 192.168.10.255
        inet6 fe80::20c:29ff:feb4:e0a7  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:b4:e0:a7  txqueuelen 1000  (Ethernet)
        RX packets 57  bytes 8594 (8.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 42  bytes 4728 (4.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4  bytes 240 (240.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4  bytes 240 (240.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

                                                                                                                                                             
┌──(kali㉿kali)-[~]
└─$

┌──(root㉿kali)-[/home/kali]
└─# ifconfig eth0 down   

┌──(root㉿kali)-[/home/kali]
└─# ifconfig eth0 hw ether 00:11:22:33:44:55
                                                                             
┌──(root㉿kali)-[/home/kali]
└─# ifconfig eth0 up                        
                                                                             
┌──(root㉿kali)-[/home/kali]
└─# ifconfig        
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.116.143  netmask 255.255.255.0  broadcast 192.168.116.255
        inet6 fe80::211:22ff:fe33:4455  prefixlen 64  scopeid 0x20<link>
        ether 00:11:22:33:44:55  txqueuelen 1000  (Ethernet)
        RX packets 691  bytes 44146 (43.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 65  bytes 7878 (7.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 4  bytes 240 (240.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4  bytes 240 (240.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

                                                                             
┌──(root㉿kali)-[/home/kali]
└─#

┌──(root㉿kali)-[/home/kali]
└─# dhclient eth0
                                                                             
┌──(root㉿kali)-[/home/kali]
└─#

▶ Domain Name System

① dig를 통한 DNS 확인

┌──(root㉿kali)-[/home/kali]
└─# dig hackers-arise.com           

; <<>> DiG 9.18.16-1-Debian <<>> hackers-arise.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20166
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; MBZ: 0x0005, udp: 512
;; QUESTION SECTION:
;hackers-arise.com.             IN      A

;; ANSWER SECTION:
hackers-arise.com.      5       IN      A       185.230.63.186
hackers-arise.com.      5       IN      A       185.230.63.171
hackers-arise.com.      5       IN      A       185.230.63.107

;; Query time: 104 msec
;; SERVER: 192.168.116.2#53(192.168.116.2) (UDP)
;; WHEN: Fri Jul 28 16:58:05 KST 2023
;; MSG SIZE  rcvd: 94

                                                                             
┌──(root㉿kali)-[/home/kali]
└─#

┌──(root㉿kali)-[/home/kali]
└─# dig mylearn.co.kr ns

; <<>> DiG 9.18.16-1-Debian <<>> mylearn.co.kr ns
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 64501
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; MBZ: 0x0005, udp: 512
;; QUESTION SECTION:
;mylearn.co.kr.                 IN      NS

;; ANSWER SECTION:
mylearn.co.kr.          5       IN      NS      ns-1394.awsdns-46.org.
mylearn.co.kr.          5       IN      NS      ns-1804.awsdns-33.co.uk.
mylearn.co.kr.          5       IN      NS      ns-49.awsdns-06.com.
mylearn.co.kr.          5       IN      NS      ns-914.awsdns-50.net.

;; Query time: 136 msec
;; SERVER: 192.168.116.2#53(192.168.116.2) (UDP)
;; WHEN: Fri Jul 28 17:00:42 KST 2023
;; MSG SIZE  rcvd: 181

                                                                             
┌──(root㉿kali)-[/home/kali]
└─#