Chapter 249

.

In 7551, Xia Xia had a total of two cyber wars with Voisin. Voisin retaliated once, but retreated in a hurry.

This was because CNS intervened without Shi Lei's knowledge. Their official security expert team tracked down the members of the Sakura Group, causing Voisin's hackers to lose their leader. Therefore, Voisin's hackers retreated after a short attack.

Pink Sakura's public opinion attack was too sharp. It directly pointed at Xia Xia's social problems, which made Xia Xia's leader very unhappy.

Fortunately, Pink Sakura escaped quickly, and CNS only sent out an official team to chase after them. If Pink Sakura remained in Xia Xia's network, the twelve experts from CNS might have ganged up on Pink Sakura.

Pink Sakura would have to kneel!

In Voisin's online world, Raphael provoked Shi Lei's alias, Mr. M. After Shi Lei successfully dealt with the anti-virus firewall, Infinite Defense, and had the premise of protecting himself, he was also a little restless.

Shi Lei participated in the previous two wars between Xia Xia and Voisin. However, he was either adding fuel to the fire or scheming behind the scenes. He had never fought head-on!

This time, the Moon Virus wreaked havoc in Voisin, and Raphael's provocation, made Shi Lei decide to bully Raphael!

To bully someone, one must first be well-prepared, such as catching a chicken.

Shi Lei only had two fixed chickens. The first was the core chicken supercomputer, Yan. Yan was Shi Lei's absolute trump card. With the Super Calculator Swallow in his hands and the Infinite Defense, Shi Lei was not afraid of anyone!

Of course, not being afraid of anyone did not mean that he could provoke anyone. For example, Xia Xia's CNS, Voisin's Ministry of Foreign Affairs International Intelligence Service, and Lijian Province's CIA and FBI, etc.

Supercomputer Yan combined with Infinite Defense could indeed resist them, but this would undoubtedly expose Yan.

If he lost the supercomputer Yan, Shi Lei's influence on the Internet would be reduced by at least half!

Shi Lei's other pet chicken was the public server of Shuangqing University. This pet chicken was very weak and could only be considered as Shi Lei's little toy. It could be used to carry out daily tasks. It was impossible to borrow Shuangqing University's public server at a critical moment.

During the second cyber war between Xia Xia and Voisin, Shi Lei abandoned Aiken's Level 6 Meat Chicken and the Rock Firewall in order to protect the supercomputer Yan. That lesson still left a deep impression on Shi Lei.

Therefore, before bullying Raphael, Shi Lei was prepared to catch a few more meat chickens and be fully prepared.

Using the supercomputer Swallow to scan Voisin's Internet World, Shi Lei also used Voisin's search engine to check the official websites of some high-tech companies, looking for opportunities to take advantage of.

After searching for a while on the search engine, he couldn't find a suitable candidate. Shi Lei touched his stomach. After staying up all night and sleeping all day, he was indeed hungry.

Looking at the progress of the supercomputer Swallow's scan, Shi Lei stood up and found some food in the fridge. It was bread and milk.

He used the microwave to heat up the bread and milk. Although it wasn't delicious, Shi Lei's own cooking was worse. He was starting to miss Ou Yangxiang's cooking skills!

After reluctantly finishing the bread and milk, Shi Lei washed his hands and sat back in front of the first server.

The supercomputer Swallow's scan had given him good news. Some companies that needed a supercomputer had purchased the supercomputer Swallow's computing services.

These companies that needed a supercomputer were mostly high-tech companies. Their own servers were also quite powerful. Shi Lei used the supercomputer Swallow to connect to the servers of these high-tech companies. From the supercomputer Swallow, he tracked down a few high-tech companies.

Among these high-tech companies, Shi Lei selected two companies that had superior server performance and low server usage.

These two companies were the same as Aixin. They only rented the supercomputer Swallow to increase their company's reputation. They didn't really use the supercomputer Swallow.

Shi Lei used the supercomputer Swallow's access and attacked a company called Leyu Company. This company mainly provided computer services and support to other companies.

Their servers used a cluster model. The so-called cluster model was a cluster of servers. In simple terms, a cluster server was to allow multiple servers to work like a single server.

For example, Leyu Company's cluster server had a total of eight independent servers. They used the cluster system to improve their stability and computing power.

There were many benefits to using a cluster server. For example, when the servers were upgraded, the old servers couldn't be abandoned. Also, the service continuity had to be considered. If the cluster server method was used, the new servers could be directly connected to the cluster server and directly improve the performance.

Another advantage of the cluster server was that if there was a problem with an independent server in the cluster server, the other servers could take on the task of fault tolerance. The fault server would be isolated from the cluster system through a special software. The remaining servers could be rebalanced through the load transfer mechanism between servers. At the same time, the security personnel would be notified of the existence of the fault server.

Leyu Company's cluster system used the UNIX system. It could accommodate up to eight independent servers. They had also configured eight independent servers, reaching the limit.

Shi Lei knew of another cluster system that could support up to 41 independent servers. That was Compaq's OpenVMS!

However, in 7557, Compaq was acquired by Hewlett-Packard. This caused Hewlett-Packard's servers to become more and more powerful.

Leyu Company used the UNIX cluster system. It was configured with eight independent servers with a computing speed of 5.7 TFLops. The computing power of the cluster server was even more powerful than Aixin Company's server group by 15%.

Shi Lei used the supercomputer Swallow to successfully infiltrate Leyu Company's cluster server and started to execute his invasion plan.

The advantages of the cluster server were obvious, but there were also disadvantages.

Because the cluster server had a fault tolerance task, when an independent server's running application malfunctioned, or when an independent server malfunctioned, the other servers would open the application again because of the fault tolerance task. They would take over the shared disk cabinet's data area and let the malfunctioning application run again.

This mechanism was very good. It was also one of the advantages of the cluster server. However, it was also one of the disadvantages of the cluster server.

The process of taking over the application generally required three steps.

The first step was to investigate the fault tolerance task and determine whether the malfunction really existed. The second step was to restart the malfunctioning application on a server in the cluster server. The last step was to take over the shared disk cabinet's data area.

If an independent server's application malfunctioned, the other servers in the cluster would need a certain amount of time to take over the application. This time was determined by the size of the malfunctioning application. The bigger the application, the more time it would take to take over!

To counter this mechanism, which was both an advantage and a disadvantage, Shi Lei found a large-scale application that was running in Leyu Company's cluster server.

After forcibly terminating this large-scale application and isolating this independent server, Le Yu Company's cluster server started the application from another independent server under the management of the fault-tolerant task mechanism. Then, the load transfer mechanism began to adjust the load balance of the remaining seven servers.

During the load balancing adjustment, the cluster server's resource utilization rate was the highest, but the system's defense was the weakest. Using this moment and the supercomputer Swallow's power, Shi Lei infiltrated the cluster server's core and seized the super authority!

Obtaining the super authority of the cluster server meant that he had control over Leyu Company's cluster server and turned it into his own meat chicken!

Shi Lei laughed and coded the newly acquired meat chicken of Leyu Company as the second server to make it easier for him to remember.

After settling Leyu Company, Shi Lei did not stop and continued to move towards his second target.

The second target was called Pukong Technology. It was a research company. Their server was also a cluster server.

However, Pukong Technology's cluster server was different from Leyu Company's. Leyu Company's cluster server was made up of eight independent servers under the Unix cluster system. On the other hand, Pukong Technology's cluster server was simply made up of two servers. One was the main server, and the other was the backup server.

This structure was another form of the cluster server. The main server was responsible for all the services. Only when the main server failed would the backup server take over all the tasks of the main server.

Shi Lei checked the performance of the main server. It had reached 6 TFL OPS, and the backup server had also reached 5.0 TFL OPS. Both servers added together were still more powerful than Aicin Company's core server group!

For this kind of cluster server, Shi Lei could be said to be very handy!

Shi Lei infiltrated into the periphery of the main server and wrote a message that simulated the main server had a problem and sent it to the backup server. The backup server immediately started to take over the tasks of the main server. The moment the two servers took over, the cluster system's priority determination program would be activated.

If the main server did not fail, it would need to execute all the applications. As for the backup server, it would need to take over all the tasks after receiving the main server's failure message.

When there was a conflict between the main server and the backup server, the cluster system would activate the priority determination program to verify whether the main server was working properly.

This conflict and verification time was very short, but it was enough for Shi Lei, who was the world's top hacker, to break into Pukong Technology's cluster system.

After successfully entering the system, Shi Lei tried to obtain super privileges. He actually found a classic loophole!

Pukong Technology's cluster system was also a Unix system. Shi Lei only analyzed it for a moment before he laughed out loud.

"What an idiot! He actually made such a big mistake! "

(To be continued. If you like this work, you are welcome to come to qidian.com to vote for me. Your support is my greatest motivation.)