DDoS attack (Denial of Service or DoS)

How to fight against DDoS attacks?

Thanks to Nameshield’s DNS Premium labelled France Cybersecurity, with its anti-DDoS filter and its anycast network allowing to ensure a perfect availability of your Internet services and prevent any disruption.

What’s a DDoS attack?

An attack by denial of service (DoS) is an IT attack that aims to make a service unavailable, to hinder the legitimate users of a service from using it.

Attaque DDoS

It can be about:

  • The flooding of a network to prevent its operation;
  • The disruption of connections between two machines, hindering the access to a particular service;
  • The obstruction of access to a service for a particular person.

The denial of service attack can then block a file server, make it impossible to access a web server or hinder the distribution of email in a company.

The first attacks were perpetrated by a single “attacker” with limited resources and attracted by achievement and reputation

DDoS attack

Today, with the strong rise of business trades on the Internet, the number of denial of service blackmail attacks has strongly increased, more advanced attacks have appeared, implying many “soldiers”, also called “zombies”. This is called DDoS (distributed denial of service attack).

These DDoS attacks are on the rise and particularly target large companies, accompanied by a ransom request to stop the attack.

Source: Nameshield’s White paper – Understanding domain names

For more information on the attacks targeting the DNS, you can find on the blog an article about the 3 most common DNS attacks and how to defeat them.

And also discover the white paper on “Domain names security” to download here. A best practices guide to effectively protect your domain names from cyber threats including DDoS attacks.