cisco ccna 200-301 notes

cisco ccna 200-301 notes

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Nov With each passing day, new targets include tax evasion, money laundering using automatic settlement systems, and profitable commercial espionage activities on the Internet. DisableRegistryToo1s=dword : 00000000 (3) The last step the hacker needs to do is to issue commands to attack specific targets from the attack console to each attack server . Since the location of the attack console is very flexible and the time for issuing commands is very short, it is very hidden and difficult to locate. Once the command is transmitted to the server, the console can be shut down or disconnected from the network to avoid tracking. Then, the attack server issues commands to each attacker. After the attacker receives the command, each attacker starts to send a large amount of service request data to the target host. These packets disguised has been unable to identify the source, and these data packets, please request the service tend to consume more system resources such as CPU resources or network bandwidth. If hundreds or even thousands of attack hit simultaneously invade a target, it will lead to depletion of the target server network and system resources to stop the service, in severe cases can cause the system to crash. In addition, this can also block network equipment such as firewalls and routers of the target network,cisco ccna 200-301 notes, further aggravating the network congestion, and finally make the attacked server unable to provide users with any services. Because the protocol used by hackers are some of the common protocols and services, the system administrator is difficult to distinguish between normal connection or malicious requests, please seek, and thus can not effectively separate the invasion of packets.

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