DDoS Attack … What is DDoS Attack ?
- An attack is often the result of multiple compromised systems (like a botnet) flooding the targeted system with huge traffic (600gbps or more). If your site or server under attacked by DDoS then your site will not open. And the system will stop immediately. DDoS Attack is harmful to us. So what is DDoS ? DDoS means ( distributed denial-of-service )
DDoS is a type of DOS attack. Recently Twitter, Spotify, Reddit and also PayPal got DDoS attacked on its DNS infrastructure on the east coast starting at around 7:10 a.m. ET (11:10 UTC) by some Hackers Team. “DNS traffic resolved from east coast name server locations are experiencing a service interruption during this time. A Massively attacked Dyn, a company that provides core Internet services. A DDoS is when crooks use a large number of hacked or ill-configured systems to flood a target site with so much junk traffic that it can no longer serve legitimate visitors. DNS refers to Domain Name System services. DNS is an essential component of all Web sites, responsible for translating human-friendly Web site names like “yoursitename.com” into numeric, machine-readable Internet addresses. Anytime you send an e-mail or browse a Web site, your machine is sending a DNS look-up request to your Internet service provider to help route the traffic.
HOW DDOS ATTACKS WORK ?
- According to eSecurityPlanet.com, in a DDoS attack, the incoming traffic flooding the victim originates from many different sources – potentially hundreds of thousands or more. This effectively makes it impossible to stop the attack simply by blocking a single IP address; plus, it is very difficult to distinguish legitimate user traffic from attack traffic when spread across so many points of origin.
THE DIFFERENCE BETWEEN DOS AND DDOS ATTACKS ?
- A Denial of Service (DoS) attack is different from a DDoS attack. The DoS attack typically uses one computer and one Internet connection to flood a targeted system or resource. The DDoS attack uses multiple computers and Internet connections to flood the targeted resource. DDoS attacks are often global attacks, distributed via botnets.
TYPES OF DDOS ATTACKS
There are many types of DDoS attacks. Common attacks include the following:
- Traffic attacks: Traffic flooding attacks send a huge volume of TCP, UDP and ICPM packets to the target. Legitimate requests get lost and these attacks may be accompanied by malware exploitation.
- Bandwidth attacks: This DDoS attack overloads the target with massive amounts of junk data. This results in a loss of network bandwidth and equipment resources and can lead to a complete denial of service.
- Application attacks: Application-layer data messages can deplete resources in the application layer, leaving the target’s system services unavailable.
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