Teenusetõkestamise

Teenusetõkestamine, known in English as denial-of-service (DoS) or distributed denial-of-service (DDoS) attacks, is a malicious attempt to disrupt the normal traffic of a targeted server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of internet traffic. The objective is to make the target resource unavailable to its intended users.

These attacks can be launched from a single source (DoS) or multiple compromised computer systems (DDoS). In a DDoS attack, attackers often use a botnet, a network of infected computers, to coordinate the attack. The sheer volume of requests or malicious data sent to the target can consume its resources, such as bandwidth, processing power, or memory, rendering it unable to respond to legitimate requests.

The impact of teenusetõkestamine can range from temporary service interruptions to significant financial losses and reputational damage for businesses and organizations. Common targets include websites, online services, and network infrastructure.

There are various types of DoS/DDoS attacks, including volume-based attacks that aim to saturate the target's bandwidth, protocol attacks that exploit weaknesses in network protocols, and application layer attacks that target specific applications or services. Defending against these attacks often involves a combination of network monitoring, traffic filtering, and specialized security solutions designed to identify and block malicious traffic before it reaches its target.