What is DDoS? Distinguish between DoS and DDoS attacks

DDoS stands for Distributed Denial of Service

DDoS and DoS are familiar terms in the information technology industry. In recent times, large-scale cyberattacks and data theft in the world all have the appearance of these two terms. So DoS and DoS What is DDoS?? How do they affect the systems, servers and operations of businesses? Join Mat Bao to learn the difference between these two concepts through the following article.

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DDoS stands for Distributed Denial of Service

What is DDoS?

1. What is DDoS?

DDoS stands for Distributed Denial of Service, which means distributed denial of service. DDoS is a form of attack on a server containing a website, exhausting server system resources, flooding internet traffic and disrupting users’ connections. Above are the basic concepts to help you understand “What is DDoS and DDoS attack?”.

This is a type of distributed attack, the subjects not only use their own computers but also take advantage of the users’ computers to do DDoS attacks. Specifically, they will take control of the user’s computer and send requests and data to a website or an email address. DDoS attacks are becoming increasingly sophisticated and complex, with three basic types:

  • Volume-based: use high traffic to flood the network bandwidth.
  • Protocol: mainly exploits the resources on the server.
  • Application: is the most dangerous type of attack, focusing on website applications.
DDoS is a form of distributed attack

DDoS is a form of distributed attack

2. What is DoS?

Outside “What is DDoS??” DoS is also a term that many people are interested in. DoS is an acronym for Denial of Service, which means denial of service in Vietnamese. DoS is an attack that aims to bring down a server or network, preventing other users from accessing it. Victims of DoS attacks are often web servers of high-ranking entities such as governments, banks, social networks, media enterprises, e-commerce sites, newspapers, etc.

DoS attacks by “stemming” a large amount of traffic or sending information that can trigger problems to the target system, server, and network. At that time, the attacked target will not be able to process the tasks, leading to overload. This type of attack prevents legitimate users (including account holders, members, employees) from accessing the desired service or resource.

DoS is an acronym for Denial of Service which means denial of service

DoS is an acronym for Denial of Service which means denial of service

3. Learn the difference between DoS and DDoS

DDoS and DoS are terms that are easily confused with each other, especially for those who do not have much knowledge related to information technology.

Difference between DDoS and DoS

Difference between DDoS and DoS

To distinguish between the two concepts above, you can see the table below:

Criteria DoS DDoS
Number of attack systems Only 1 system targets the victim system Multiple systems attack the victim system at the same time
Data packet sending location Targeted PC loads data packets sent from a single location Targeted PC loads data packets sent from various locations
Speed ​​Attack Slower than DDoS Faster than DoS
Ability to block attacks Easier because the attacker only uses 1 system More difficult because attackers use multiple devices and from many different locations
Number of attacking devices Only 1 device Multiple bots are used and attacked simultaneously
Attack tracking ability Easy to follow Hard to track
Traffic to the victim network Lower traffic compared to DDoS attack Massive traffic
Types of Attacks 1. Buffer overflow2. ICMP flood or Ping of Death3. Teardrop Attack 1. Bandwidth (Volumetric)2. Fragmentation Attack 3. Application Layer Attack

4. Harm of DoS and DDoS

Basically, these are all dangerous cyber attacks that cause a lot of serious damage. So the harm of DoS and What is DDoS? and how to prevent it?

Typical consequences of DoS and DDoS attacks:

  • System and server crash, making it inaccessible to users.
  • The business that owns the system, the server is severely impacted in terms of revenue and has to pay a fee to fix the problem.
  • Disruption and decrease in work performance due to loss of network connection.
  • Loss of brand reputation and customers due to inability to access the website.
  • Causing money loss, important business data.
DDoS and DoS greatly affect the system

DDoS and DoS have a great impact on systems, servers and business operations

Anyone is at risk of falling victim to distributed denial of service and denial of service attacks. To combat DDoS and Dos, you can do the following methods:

  • Install and use modern anti-virus software for computers.
  • Install and configure a firewall to limit traffic.
  • Follow the safety guidelines for email address distribution.
  • Use email filters to manage traffic more efficiently.

Distributed denial of service attacks not only have bad consequences for websites, but also have a heavy impact on business, profits and reputation. Hope the above article of Mat Bao has helped you answer the question “What is DDoS??” as well as understand the difference between the two terms DoS and DDoS.

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By Nguyen Manh Cuong

Nguyen Manh Cuong is the author and founder of the nguyendiep blog. With over 14 years of experience in Online Marketing, he now runs a number of successful websites, and occasionally shares his experience & knowledge on this blog.

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