Hu Yifei waved his hand and smiled, "How could I understand this? Isn't this asking you, a master?"

The other party was labeled as a big hat, and he was very happy. Anyway, there was still some time before the beginning. Seeing Hu Yifei looking sincerely asking for advice, he simply started joking with him, "From a technical point of view, there are some preparations before the hacker attack. The most important task is to hide the real IP."

Hu Yifei was waiting for this and asked quickly: "What do you need to do to hide the real IP?"

"Often you use a springboard server!" The young man from Agricultural University was very kind, took out a piece of paper and drew a picture for Hu Yifei. "For example, if you want to attack a machine, assume it is A, in order not to expose yourself, experts will usually log in to machine B first, then log in to C from B, from C to D, and jump many times like this, and in the end, it may be on machine X or Y, launching an attack and invading A."

Hu Yifei understood that this is the same as using a magical tool to log in to the school server and then logging into the wolf nest forum from the server. It’s just that others have gone around many more circles than themselves. It’s like going around to the wolf nest by themselves, and others have gone around to attack.

"Theoretically, the more springboards you use, the longer the chain, the safer the attacker will be." A young man from Agricultural University helped his glasses up, "But affected by the network speed and efficiency, this chain cannot be long without limit. Generally, two or three springboards are enough. Therefore, a real expert attaches great importance to the choice of springboards. The springboard does not necessarily have to be a computer. The expert will add a router or switch to the springboard. Do you know why?"

Hu Yifei shook his head idiotically, "I don't know, why?" He was still surprised. Can the router still invade? In his impression, that thing was just a square box with a network cable, without even a screen keyboard, and he didn't know whether the operating system was installed, so how could it be invaded.

"Because once the logs on the router are cleared, they cannot be restored. After the logs on the computer are cleaned, there is still a way to recover them!"

Hu Yifei was shocked. No wonder someone could track him down. Could it be that someone else had recovered the logs he cleaned up? Thinking about it again, Hu Yifei felt that something was wrong. It was really strange that he would not leave a log with the artifact. He still didn't understand how the bird god discovered him.

"What? Can routers also invade?" Hu Yifei looked at the young man with expectation, "Brother, do you have a springboard for the router? Can you show me what it looks like!"

The young man from Agricultural University suddenly felt a little impatient and waved his hand, "I haven't seen the matter of Nandian Electric Power, how can I show you this!"

Hu Yifei was not discouraged and begged with a shy face: "Master, just do it and let me know it well. Once you have prepared the springboard, you can use it when you attack it later!"

"What springboard is it?" The people from Agricultural University turned over and looked at the computer and muttered: "With Nandian, there is no need to be a springboard at all, just let them know clearly that we did it!"

Hu Yifei couldn't do anything, so he leaned over and squeezed around, and glanced at the screens of the thirty masters. According to the visual results, no one really used the springboard. The masters seemed to have already prepared their work at this time, logging in to QQ and reading the web page. Among them, four or five were busy stealing vegetables on the farm and unable to access the Internet for a day, which probably caused these masters to be suffocated.

Looking left and right, it was the most serious master of the Agricultural University. He clicked on a security website to open the latest pure English security report and looked at it very seriously.

Hu Yifei lowered his voice and went to bother the master of the Agricultural University, "I glanced around, brother, you are the most professional!"

The master of Agricultural University proudly held the glasses frame, but said modestly: "I'm still far from it, not professional. Kevin Mitnik is my goal!"

Hu Yifei smiled, "You are too modest. What else should you pay attention to when you invade a professional hacker besides making springboards?"

"This is too much!" The farmer heard Hu Yifei's question, and then had a stir. "Making a springboard and cleaning logs are the most basic. Professional experts generally do not use their own computers to invade, but choose some public machines with relatively large personnel flow."

"Just like an Internet cafe?" Hu Yifei asked back.

The master of Agricultural University nodded, "That's right!"

Hu Yifei wondered, no wonder these people chose the Internet cafe in the end, but all of them were equipped with cameras.

"Of course, you can't find an Internet cafe, you can use a virtual machine system, do you understand this?"

Hu Yifei shook his head, "I don't understand!"

"Look back and download one online, and you will understand it after researching it!" The master passed this question, "When logging in to the springboard, you have to check if there are other intruders on the machine. It is also a taboo for hackers to grab someone else's springboard!"

"How to check if there are any other invaders?" Hu Yifei understood a little. He was tracked by the Bird God, and he might have discovered this way.

"There is a command called net..." The master had a long time of madness, but the one behind him couldn't say it, and his face looked a little embarrassed. He slapped his forehead, "It's usually used, but when I say it today, I can't remember it! I'll check it for you!" After the master finished speaking, he closed the English report, logged into his blog, found a reprinted "Instructions for Hacker Invasion", opened it and looked at it, and said, "You can remember these two commands of NetUser and ShowUser!"

Hu Yifei was frightened by the other party's "special milk oil" and "beast oil". He just glanced casually and actually saw what was written in the article. It seemed to be the same as what the master said just now. His heart skipped a beat. This master was not a master of talk on paper, right? Hu Yifei suddenly lost interest in asking questions, ran back and sat on his machine, opened Nandian's website and looked at it, and found that Nandian people were laughing: Not to mention it is eight o'clock, we may not stop attacking tomorrow at 8 o'clock. If you have any means, just let the horse come over.

At 8:30, the black-clothed boss waved, "Since the other party doesn't give him face, we don't have to be polite, the attack begins!"

The people in the Internet cafe immediately rushed forward, wanting to see what the hacker attack looked like. The fourth brother was originally sitting in the front row, but suddenly there were many people in front of him, blocking his vision. The fourth brother had to stand on the chair and look down. The eldest brother was too fat, so he would be able to reimburse a chair when he stood up, so he had to tiptoe forward and stretch his neck.

Hu Yifei looked at it and found that the attack methods of the thirty masters were really different. They all ran the tools they had prepared before, and then stared at the screen very seriously.

Everyone looked at it for a long time, but couldn't understand what was going on. They thought that if they were staring at the screen, they could turn off the Internet by staring at the screen, so they shouted, "How is it? What are you attacking now? Is the Internet of Nandian broken?"

The boss in black was running a scanner and stood up and said, "Don't worry, attack is not that easy. You have to find the loopholes first before you can attack! We have a complete combat plan. The first thing you are attacking is the other party's website. In a while, you will see that the website of Nandian cannot be opened!"

After saying this, a lot of people scattered, and they all went to their respective computers to refresh Nandian's website to see if there were any signs of being attacked and hang up.

The people from Nandian were already sarcastic on the forum at this time, "Men of Dongyang, is the earth there still not turning? Is it still at 8:29?", "Of course the earth is still turning, it is their watch that selectively stopped!"

The people in the Internet cafe were furious and began to typing on the keyboard to fight back, "Prepare tissues, don't wet your underwear when the internet is disconnected!", "It doesn't matter if the underwear is wet, but don't wet the computer, it will be short-circuited!"

When everyone fought back, they hoped that the masters would quickly kill the other party's website and vent their anger. As a result, an hour passed, the other party's website was still alive, and the strength of everyone's counterattack gradually weakened and almost disappeared. The man with a bad temper had already started to scold the monks and locusts: "Damn, it's enough to build a computer for such a long time. Can it be blackened?"

The boss also took a photo of the keyboard, "Day, I'm waiting for an hour, it's enough for me to go to the next copy!"

Hu Yifei understood a little bit, and thought that he would probably be disappointed today. The master of Agricultural University is quite reliable. He ran an automatic attacker. As long as he filled in the other party's IP, he could automatically kill the other party's machine, and the IP address was also in line. The tool was not useless, but one thing was that the target of the attack must be the WIN98 system. But Hu Yifei had never seen that kind of old antique system since the day he used the computer.

After a little more time, everyone's doubts became louder and louder. The boss in black could no longer hold back. He started sweating on his forehead. He turned his head to discuss with the responsible person of other schools.

The boss of the School of Political Science and Law muttered to his younger brother, saying, "My brother said he has a tool, which is absolutely useful!"

The boss in black quickly gave up the hot butt seat, "Let him try it!"

The little brother was very proud. He went over and sat down, took out the USB drive he had prepared long ago and plugged in, found a tool, filled in an IP, and then clicked the "Attack" button.

"Okay! Nandian's website cannot be opened!" Someone immediately shouted.

Hu Yifei quickly turned around and refreshed the webpage. Sure enough, Nandian's website could not be opened. Damn, a magical tool. Hu Yifei was overjoyed and thought that even if he was trying to get over, he would have to get the tool of that person.

The Internet cafe finally cheered and everyone roared: "Nandian's grandson, now you know how powerful my grandfather is!"

"No. 127! What are the people from the No. 127 machine doing!" The radio from the Internet cafe suddenly came from the roar of the Internet administrator, "Damn, the Internet cafe was disconnected by you!"

Everyone was stunned and went to refresh the web page. Only then did they realize that not only the Nandian website, but all the websites could not be opened. Then, the sounds of "My Day", "Damn" and "Fuck" were heard one after another in the Internet cafe, and many people were kicked out of the game.

The network administrator rushed over and grabbed the guy on the No. 127 machine, "What are you doing!"

"I...I'm attacking the Nandian website!" The younger brother was very good at heart, and he was still calm at this time.

"You attack the hammer!" The network manager clicked on the tool running on the desktop, "You are blind, can't you see the name of the tool? LAN ARP attacker, damn, LAN WAN can't tell the difference. The damn master, hammer!"

Everyone was uproared and then cursed, "It's such a fucking waste of feelings, and the chicken was moved all night."

The Internet cafe owner was so naughty that he was so happy that he provided free machines, but he didn't ask someone to attack his Internet cafe. He said in a slight and unpredictable way: "With this level, he dares to come out as a shame. He doesn't even want to be an Internet administrator here!"

A group of masters looked red and left the Internet cafe in shame. The black-clothed boss didn't need Xiao Siyan to help this time. He took off the hacker's special keyboard and mouse and picked it up and left.

"Tear the banner at the door!" The Internet cafe owner was furious and scolded the Internet administrator: "Send someone to find them to get back all the internet fees for the few hours!"
Chapter completed!