In this walk through, we will be going through the DNS in detail room from Tryhackme. This room will teaches you how DNS works and it help us to access services on the wild internet. So on that note, let’s get started.
Task 1 – What is DNS?
Question 1 – What does DNS stand for?
Domain Name System
Task 2 – Domain Hierarchy
Question 1 – What is the maximum length of a subdomain?
63
Question 2 – Which of the following characters cannot be used in a subdomain ( 3 b _ – )?
_
Question 3 – What is the maximum length of a domain name?
253
Question 4 – What type of TLD is .co.uk?
ccTLD
Task 3 – Record Types
Question 1 – What type of record would be used to advise where to send email?
MX
Question 2 – What type of record handles IPv6 addresses?
AAAA
Task 4 – Making A Request
Question 1 – What field specifies how long a DNS record should be cached for?
TTL
Question 2 – What type of DNS Server is usually provided by your ISP?
Recursive
Question 3 – What type of server holds all the records for a domain?
Authoritative
Task 5 – Practical
Question 1 – What is the CNAME of shop.website.thm?
shops.myshopify.com
Question 2 – What is the value of the TXT record of website.thm?
THM{7012BBA60997F35A9516C2E16D2944FF}Question 3 – What is the numerical priority value for the MX record?
30
Question 4 – What is the IP address for the A record of www.website.thm?
10.10.10.10
Also Read: Tryhackme – DFIR: An Introduction
So that was “DNS in detail” room for you. In this room, we covers what DNS is, its hierarchies, record types and how to make a request for the same. Finally, we tested the theory we learned by solving a bunch of exercises. On that note, i will take your leave, till then “Keep learning”.
