Internet caf network managers must learn what are DDOS attacks and UDP attacks

The complete thing is that it should be a UDP flooding attack.

udp flood attack）

UDP flooding attacks are a type of attack that results in a host-based denial of service attack. UDP is a connectionless protocol, and it doesn't require any programs to establish a connection to transfer data. A UDP flooding attack can occur when an attacker randomly sends UDP packets to the port of the victim system.

When the victim system receives a UDP packet, it determines that the destination port is waiting for the application. When it discovers that there is no waiting application on the port, it generates an ICMP packet with an unreachable destination and sends it to the forged source address. If enough UDP packets are sent to the victim's computer port, the entire system will be brought down.

Prevention against UDP flooding attacks.

Using firewalls to filter unsolicited and harmful data at critical points on the network can effectively mitigate UDP flooding attacks. In addition, the following measures should be taken in the user's network:

Disable or filter monitoring and response services.

Disable or filter other UDP services.

If a user must provide external access to some UDP service, then a mechanism needs to be used to protect that service from abuse.

Monitor users' networks to see which systems are using these services and monitor for signs of abuse.

The above is ** known.

DDoS attacks.

A distributed denial of service (DDOS) attack is a DDoS attack that uses client server technology to unite multiple computers as an attack platform to launch a DDoS attack on one or more targets, thereby increasing the power of a denial-of-service attack exponentially. Usually, an attacker installs a DDoS master program on a computer with a stolen account, and at a set time, the master program will communicate with a large number of programs, which have already been installed on many computers on the network.

**The program attacks when it receives an order. Using client-server technology, the master program can activate hundreds or thousands of program runs in a matter of seconds.

The above content ** encyclopedia.

There is some truth, but it is recommended not to do bad things, and not to rooster others!

When an Internet café encounters this kind of thing, it will directly call the police to deal with it, what are you afraid of.

Oh, call the police... There is a suspicion of a nearby internet café

Set the IDE detection to automatic, and it should be fine???

Can you be more specific, I'm a rookie.