DoS Attacks
A Denial-of-Service (DoS) attack is a type of cyberattack in which a malicious actor attempts to make a computer system or network resource unavailable to its intended users. DoS attacks can take many forms, but all share the common goal of disrupting the victim's ability to access or use the targeted resource. DoS attacks can be launched from a single computer or from multiple computers working together in a botnet. They can be targeted at any type of computer system or network resource, including websites, servers, routers, and even entire networks.
Types of DoS Attacks
There are two main types of DoS attacks: Volumetric attacks and protocol attacks.
- Volumetric attacks flood the target system with so much traffic that it becomes overwhelmed and unable to process legitimate requests. These attacks can be launched from a single computer or from multiple computers working together in a botnet. Volumetric attacks include:
- UDP flood
- TCP flood
- ICMP flood
- DNS flood
- Protocol attacks exploit weaknesses in the protocols used by computer systems and networks. These attacks can be more difficult to detect and defend against than volumetric attacks. Protocol attacks include:
-
- SYN flood
- Smurf attack
- Teardrop attack
Impact of DoS Attacks
DoS attacks can have a significant impact on their victims. They can cause: