09/04/2022
What is a DDoS Attack?
Distributed Denial of Service (DDoS), IS a Cyber Attack on a server or network that disrupts its operating system and can diminish a network’s bandwidth, CPU cache, memory, and more.
Types of DDoS Attacks
1.Application layer attacks:
The application layer is where the server generates the response to an incoming client request. For example, if a user enters http://www.xyz.com/learning/ on their browser, an HTTP request is sent to the server, requesting the learning page. The server will fetch all the information related to the page, package it in response, and send it back to the browser.
2.Protocol attacks:
Protocol attacks look to exhaust the resources of a server or those of its networking systems like firewalls, routing engines, or load-balancers. An example of a protocol attack is the SYN flood attack.
3.Volumetric attacks:
Volumetric attacks are conducted by bombarding a server with so much traffic that its bandwidth gets completely exhausted. The most common example of a volumetric attack is the DNS amplification attack.
In such an attack, a malicious actor sends requests to a DNS server, using the spoofed IP address of the target. The DNS server then sends its response to the target server. When done at scale, the deluge of DNS responses can wreak havoc on the target server.
10 ways to prevent a DDoS attack
1. Know your network’s traffic
2. Create a Denial of Service Response Plan
3. Make your network resilient
4. Practice good cyber hygiene
5. Scale up your bandwidth
6. Take advantage of anti-DDoS hardware and software
7. Move to the cloud
8. Know the symptoms of an attack
9. Outsource your DDoS protection
10. Monitor for unusual activity
