Network security question: what is dns? how does it work? identify the attack surface of dns....

Network security question:
what is dns? how does it work? identify the attack surface of dns. clearly detail how the exploitable services of dns can be attacked

Expert Solution

What is DNS ?

-> Domain Name System – is the standard protocol that connects internet users to an IP address via a domain name. But while the system can be a helpful tool for web surfers, it can also expose users to DNS attacks.

how does it work?

-> The protocol that translates human-friendly URLs, such as paloaltonetworks.com, into machine-friendly IP addresses, such as 199.167.52.137.

Famous DNS Attacks Type:

DNS Cache Poisoning Attack
Distributed Reflection Denial of Service (DRDoS)
DNS Hijacking
Phantom Domain Attack
TCP SYN Floods
Random Subdomain Attack
DNS Tunneling
DNS Flood Attack
Domain Hijacking
Botnet-based Attacks

-> Cybercriminals know that DNS is widely used and trusted. Furthermore, because DNS is not intended for data transfer, many organizations don’t monitor their DNS traffic for malicious activity. As a result, a number of types of DNS-based attacks can be effective if launched against company networks. DNS tunneling is one such attack.

-> Many diffrent way to many type of DNS attacks.

venereology answered 2 years ago

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