Difference Between a DoS and a DDoS Attack?


A Denial of Service (DoS) attack includes many kinds of attacks all designed to disrupt services. In addition to DDoS, you can have application layer DoS, advanced persistent DoS, and DoS as a service. Companies will use DoS as a service to stress test their networks.

In short, DDoS is one type of DoS attack – however, DoS can also mean that the attacker used a single node to initiate the attack, instead of using a botnet. Both definitions are correct.

While most CDNs offer DDoS protection as a sort of extra, there are other services with entire businesses built around the functionality.

For example, Google offers a service called Project Shield, which is made available via invitation:

Other DDoS protection services tend to be on the high-end when it comes to prices. This is the kind of service that only enterprises usually pay for. To give you an idea, AWS offers a Shield service for DDoS protection, and charges $3,000 per month for its Advanced tier.

Who should consider dedicated DDoS protection:

Unless you run a major eCommerce operation that can’t afford to be offline for even an hour, dedicated DDoS protection might be overkill. This type of service comes with an expensive price tag, so you’ll need a big budget.
 


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