The attacks target the layer where web Brazil Phone Number List are rendered on the server and delivered in response to HTTP requests. Defense against Layer 7 attacks is difficult, as it can be difficult to distinguish malicious traffic from legitimate traffic. In Brazil Phone Number List attacks, called HTTP flood , a large number of HTTP requests from many different computers at the Brazil Phone Number List time fill the server, as if the "refresh" button was pressed, causing a denial of service. In simple ones, a single URL can be accessed with attacking IP addresses and routers in the same range.
In more sophisticated versions, multiple Brazil Phone Number List IP addresses can be used and random URLs can be targeted using random routers. Protocol attacks (Protocol attacks / state-exhaustion attacks) cause service interruption Brazil Phone Number List by over-consuming server resources or network equipment resources such as firewalls and load balancers . Protocol attacks exploit weaknesses in layers 3 and 4 of the protocol stack to render the target inaccessible. DDoS attacks targeting Brazil Phone Number List infrastructure; they can attack network domains responsible for verifying connection requests by sending slow pings.
Malformed pings and partial packets. They can Brazil Phone Number List through web application firewalls (WAF). The severity of network layer or protocol attacks is measured in packets per second since it depends on the number of information packets sent Brazil Phone Number List than the action. One type of these DDoS attacks is known as the SYN flood (Syn Flood) . An attacker repeatedly sends first connection request (SYN) packets, preventing the TCP handshake from completing, rendering the device unresponsive to traffic. Volumetric attacks try to Brazil Phone Number List congestion by consuming all available bandwidth. A large amount of data is sent to the destination, such as a form of escalation or requests from a botnet.