In an application layer attack, attackers generate a large number of requests to web applications or other software applications, which appear to come from legitimate users. Advanced solutions can analyze traffic and differentiate legitimate users from malicious, automated clients and bots. To protect against protocol attacks, anti-DDoS tools mitigate protocol attacks by blocking bad traffic before it reaches your site. These include SYN floods, fragmented packets, and the Ping of Death. Protocol attacks generate requests that leverage weaknesses in network protocols. This approach can deal with massive, multi-gigabyte DDoS attacks.

To protect against volume-based attacks, anti-DDoS providers perform large-scale “scrubbing”, using cloud servers to inspect traffic, discard malicious requests and let legitimate ones through. These can include UDP floods, ICMP floods, and other attacks with spoofed network packets. Volume-based attacks generate a large volume of network-level requests, overwhelming network equipment or servers. There are 3 main types of DDoS attacks, each with its own unique protection strategy and tools: Volume Based Attacks Unlike a Denial of Service (DoS) attack, in which one computer and one internet connection are used to flood targeted resources with packets, a DDoS attack uses many computers and many Internet connections, often distributed globally in what is referred to as a botnet. DDoS stands for “ Distributed Denial of Service.” A DDoS attack is a malicious attempt to make a server or a network resource unavailable to users, usually by temporarily interrupting or suspending the services of a host connected to the Internet.

Ip ddos protection free