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Russia faced the largest-scale denial of service attack in history.


The image above: Supercomputer center at Barcelona


Denial of access attack means that the server will bomb service-request simultaneously that it doesn't have time to serve the customers. The simplest version of the denial of service attacks is to use the bot network that is used for sending even billions of ping-commands to the targeted IP address. 

That thing can cause problems. The specialty of denial of service attacks is is that they are easy to control. That means when the attacker will order the system stops the attack immediately. That means that the targeted systems can paralyze for a certain time. 

Because of those regular users cannot reach the service that they want from those homepages. All the time of the server goes to answer those ping-commands. Then another version is that the data traffic will just drive to a certain IP address. And that closes the data line for service. 

But there is another thing that the denial of access attack can mean. Port scanning is similar action.  During port-scanning, the attacking system tries to find if there are open gates to service. A denial of service attack can use to force the targeted system to change its IP address. When the system changes its IP address. There is a possibility that the attacker can slip the malware that opens the gate to the system. In this version, the computer virus is connecting to "echo request code". 

The denial of service attack can target the root servers of the Internet. The entire Internet will not probably fall. But parts of it can paralyze. And that means there is the possibility to deny access to the mission-critical servers at the right moment. 

The denial of access attack is one of the things that can risk also national security. That kind of attack can target the servers that are controlling air defense and other military systems. If the server will face this kind of attack. There is the possibility that the enemy will get a couple of minutes for the missile attack. In that case, the sudden coming cyber attack is one of the deadliest visions of the dangers for national security. 

Image:https://www.thebuzzbusiness.com/barcelonas-hidden-supercomputer/


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