概要

TryHackMe「What is Networking?」ルームのWalkThroughです。
このルームではコンピューターネットワークの基礎を学べます。

Task1

Q1.What is the key term for devices that are connected together?

A.network

Task2

Q1.Who invented the World Wide Web?

Hint.It was created in the Year 1989

A.Tim Berners-Lee

Task3

Q1.What does the term "IP" stand for?

A.Internet Protocol

Q2.What is each section of an IP address called?

A.octet

Q3.How many sections (in digits) does an IP address have?

Hint.This section is also known as an octet.

A.4

Q4.What does the term "MAC" stand for?

A.Media Access Control

Q5.Deploy the interactive lab using the "View Site" button and spoof your MAC address to access the site. What is the flag?

デフォルトではBobからのパケットはドロップされます。

BobのMACアドレスをAliceと同じものにすることで送信元を偽装します。

その状態でパケットを送信するとフラグをゲットできます。

A.THM{YOU_GOT_ON_TRYHACKME}

Task4

Q1.What protocol does ping use?

A.ICMP

Q2.What is the syntax to ping 10.10.10.10?

A.ping 10.10.10.10

Q3.What flag do you get when you ping 8.8.8.8?

上部のIP Address欄に8.8.8.8を入力します。

Send Ping Requestボタンを押し、pingを送るとフラグをゲットできます。

user@thm:~$ ping -c 4 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data
64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=7.24 ms
64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=8.10 ms
64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=9.47 ms
64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=9.81 ms
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 4006ms
rtt min/avg/max/mdev = 8.132/9.428/10.957/1.057 ms
Flag: THM{I_PINGED_THE_SERVER}

A.THM{I_PINGED_THE_SERVER}