There are many ways of network security attack, among which DDoS attack is the most common network attack. What is the phenomenon after being attacked by DDoS? After being attacked by DDoS, the website of the enterprise will crash the server. For most users, it is mysterious and powerful, and it is also very difficult to prevent.

　　What is the phenomenon after being attacked by DDoS?

　　1. Network service unavailability: DDoS attacks are designed to overload the server, bandwidth or other resources of the target system so that it cannot provide services normally. Therefore, network services may stop responding due to operating system crashes, hardware failures, overloads, etc.

　　2. Increased network latency: The attacker sends a large number of requests to the target server, which overwhelms the server. This leads to an increase in network latency, making normal requests slow or completely unable to complete.

　　3. Lost packets: DDoS attacks may cause packet loss in the network, which may affect the reliability and integrity of network connections. Lost packets may cause transmission interruptions or data corruption.

　　4. Clients cannot connect: The attack may cause server resources to run out, making the system unable to process incoming connection requests. This will cause the client to be unable to connect to the target server or service.

　　5. Reduced network speed: Attackers use a large number of malicious requests and traffic, which may make the network congested, causing the network speed of normal users to be significantly reduced.

　　6. Crash and restart: If the DDoS attack exceeds the processing capacity of the server, the server may crash, resulting in the need for manual restart to restore normal operation.

　　7. Security vulnerability exposure: Some DDoS attacks are aimed at diverting the attention of the target server, with the purpose of hiding other attacks, such as intrusions, data leaks, or other malicious activities. This may cause the security vulnerabilities of the attacked system to be exposed.

　　In short, after being attacked by DDoS, the target server and network will suffer various effects, including failure to respond, increased latency, connection failure, and decreased speed. This is a serious problem for both operators and users, and requires timely response and recovery.

　　What is the phenomenon after being attacked by DDoS

　　What are the characteristics of DDoS attacks?

　　1. Distributed

　　DDoS attacks are coordinated attacks launched against victim hosts by combining or controlling several attacks distributed in different locations. The distributed characteristics not only increase the intensity of the attack, but also make it more difficult to resist the attack.

　　2. Easy to implement

　　In the real network, there are a lot of DDoS attack tools, most of which are convenient and easy to use. Even attackers with less sophisticated means can directly download tools from the Internet to organize attacks.

　　3. Deception

　　Forging the source IP address can achieve the purpose of concealing the attack source, and ordinary attack source positioning technology is difficult to track such attacks. Accurately locating the attack source is the key to identifying forged source IP. Most of the current IP positioning technologies can only locate the attack network boundary router or proxy host.

　　4. Concealment

　　For some special attack packets, their source address and target address are legal. For example, in HTTPFlood attacks, real IP addresses can be used to launch DDoS attacks. This seemingly legal attack packet has no obvious characteristics, so it is difficult to be identified by the prevention system, making the attack more concealed and more difficult to track, so how to identify malicious IPs, even dynamic malicious IPs, is crucial.

　　5. Destructiveness

　　DDoS attacks use a large number of puppet hosts to attack the target host at the same time. The attack flow may become very large after being collected by multiple parties. In addition, it has the characteristics of distribution, concealment and deception, which not only allows it to avoid conventional defense systems, but also causes serious economic losses.

　　What is the phenomenon after being attacked by ddos? DDoS attacks are the most common network attack methods. DDoS attacks, namely distributed denial of service attacks, are further evolved from traditional DoS attacks, namely denial of service attacks. They are very harmful, so we must take defensive measures in advance.