DNS in detail | Try Hack Me
Hi! Guys, You can access this room through this link https://tryhackme.com/room/dnsindetail & learn how DNS works and how it helps you access internet services
Task 1 What is DNS?
What does DNS stand for?
Domain Name System
Task 2 Domain Hierarchy
What is the maximum length of a subdomain?
63
Which of the following characters cannot be used in a subdomain ( 3 b _ — )?
_
What is the maximum length of a domain name?
253
What type of TLD is .co.uk?
ccTLD
Task 3 Record Types
What type of record would be used to advise where to send email?
MX
What type of record handles IPv6 addresses?
AAAA
Task 4 Making A Request
What field specifies how long a DNS record should be cached for?
TTL
What type of DNS Server is usually provided by your ISP?
recursive
What type of server holds all the records for a domain?
authoritative
Task 5 Practical
Using the website on the right, we can build requests to make DNS queries and view the results. The website will also show you the command you’d need to run on your own computer if you wished to make the requests yourself.
What is the CNAME of shop.website.thm?
What is the value of the TXT record of website.thm?
What is the numerical priority value for the MX record?
What is the IP address for the A record of www.website.thm?
