Hu Yifei waved his hand and said with a smile, "I don't understand this. I'm asking you as a master."
The other party was very happy that he was wearing a big hat. Anyway, there was still some time before the beginning. Seeing that Hu Yifei was genuinely asking for advice, he simply blew up with him, "from a technical point of view, you have to make some preparations before a hacker attack, and one of the most important work is to hide the real IP."
Hu Yifei waited for this and hurriedly asked, "what do you need to do to hide the real IP?"
"A springboard server is usually used!" The young man of Agricultural University was very kind. He took out a piece of paper and drew a picture for Hu Yifei. "for example, if you want to attack a machine, assuming that it is A, in order not to expose yourself, the master will usually log in to the machine B first, and then log in to C from B, and then jump from C to D many times, and finally it may be on the X or Y machine to launch an attack and invade A."
Hu Yifei understood that this is the same as logging in to the school server with an artifact, and then logging in to the wolf nest forum from the server, only that others have made many more circles than themselves, making their own circles as the wolf's nest and others circling as attacks.
"in theory, the more springboards used and the longer the chain, the safer the attacker will be." The boy of Agricultural University held his glasses. "but due to the influence of network speed and efficiency, this chain cannot be indefinitely long. Generally, two or three springboards will be enough." So the real master attaches great importance to the choice of the springboard, and the springboard does not have to be a computer. The master will add a router or switch to the springboard. Do you know why? "
Hu Yifei shook his head like an idiot, "I don't know, why?" He was also surprised, can the router still invade? In his impression, it was a square box with a network cable plugged in. It didn't even have a keyboard on the screen, and he didn't know whether it was installed with an operating system or not. How could it be invaded?
"because once the logs on the router are cleared, they can no longer be restored, and after the logs on the computer are cleaned, there is still a way to recover them!"
Hu Yifei was surprised. No wonder someone could track him. Did someone else restore the log he cleaned up? On second thought, Hu Yifei felt wrong again. It was strange that he would not leave a diary when using the artifact. He still did not understand how the bird god found himself.
"what? Can routers also invade? " Hu Yifei looked at the boy expectantly. "Brother, do you have a springboard for a router? can you show me what it looks like?"
The boy of Agricultural University was suddenly a little impatient and waved his hand, "I don't see how I'm busy with Nandian, so I don't have time to show you this!"
Undaunted, Hu Yifei asked with a shy face: "just do it, and let me learn a lot. If you have finished the springboard, you can also use it when you attack later."
"what kind of springboard!" People from Agricultural University turned to look at the computer and murmured, "We don't even need a springboard to deal with Nandian, we have to let them know very clearly that we did it!"
Hu Yifei couldn't do it anymore. He leaned over and squeezed around, glancing at the screens of all 30 masters. According to the results of visual observation, no one really used a springboard. The masters seem to have made their preparations at this time. Those who log on QQ and QQ, to see the web pages, among them, four or five of them are busy stealing vegetables from the farm and are unable to surf the Internet for a day, which probably suffocates these masters.
Looking from left to right, he was still the most serious master of Agricultural University. he clicked on a security website to open a new safety report in pure English and looked at it very carefully.
Hu Yifei lowered his voice and went to harass the expert at Agricultural University. "I took a look around, but you are still the most professional brother!"
The expert of Agricultural University proudly held the frame of his glasses, but said modestly, "I'm still far from being a professional, Kevin." Mitnick is my target! "
Hu Yifei smiled, "you are too modest, that professional hacker, in addition to the springboard when invading, what else should we pay attention to?"
"that's a lot to say!" Hearing Hu Yifei's question, the boy of Agricultural University had fun again. "to be a springboard and clean up the diary, that is the most basic." Professional experts generally will not use their own computers to invade, but will choose some public machines with relatively large personnel flow. "
"like Internet cafes?" Hu Yifei asked rhetorically.
The master of Agricultural University nodded, "exactly!"
Hu Yifei wondered, no wonder these candidates came and went, and finally chose Internet cafes, but these Internet cafes are all equipped with cameras.
"of course, if you can't find an Internet bar, you can use a virtual machine system, right?"
Hu Yifei shook his head. "I don't understand!"
"if you go back and download one on the Internet, you will understand the research!" The master missed this question, "when you log on to the springboard, you have to see if there are any other intruders on that machine and grab other people's springboard, which is also a big taboo for hackers!"
"how do I check to see if there are any other intruders?" Hu Yifei understood a little bit that he might have been discovered by him when he was tracked by the bird god.
"there is an order, called net." , the master milk special for a long time, but the back can not say, the face is a little embarrassed, a pat on the forehead, "usually used, today said, but can not remember!" I'll check it out for you! " When the master finished, he turned off the English report, logged on to his blog, found a reprinted "hacker hacking instructions", opened it and looked at it twice, and said, "write down these two orders of NetUser,ShowUser!"
Hu Yifei was frightened by the other party's "cream" and "animal oil". He just took a casual look at what was written at the back of the article, which seemed to be the same as what the master said just now, and his heart thumped for a moment. This man is not an expert at talking on paper, is he? Hu Yifei immediately lost interest in asking questions, ran back to sit on his own machine, opened Nandian's website, and found that the people of Nandian were laughing: not to mention eight o'clock, we may not be able to stop attacking at eight o'clock tomorrow. If you have any means, just bring it here.
At 08:30, the boss in black waved, "since the other side does not give face, we are not polite, the attack begins!"
The people in the Internet bar immediately crowded forward to see what the hacker attack looked like. The fourth was originally sitting in the front row, but suddenly a lot of people appeared in front of him, blocking his view. The fourth had to stand on the chair and look down. The boss was so fat that he had to reimburse a chair and stretched his neck on tiptoe.
Hu Yifei looked and found that the attack methods of the 30 masters were really different. They all ran the tools they had prepared before, and then stared at the screen very seriously.
After looking at it for a long time, they couldn't understand what was going on. They said that they could stare at Nandian off the network by staring at the screen, so they shouted, "how's it going?" What are you attacking now? Has Nandian's network been cut off? "
The boss in black was running a scanner and stood up and said, "Don't worry, it's not that easy to attack. You have to find out the loopholes before you can attack!" We have a complete battle plan, and the first thing we attack is the other party's website. After a while, you can see that Nandian's website can't be opened! "
In this way, the crowd scattered a lot, and all went to their computers to refresh the new Nandian website to see if there were any signs of being attacked and hung up.
At this time, the people of Nandian have been extremely sarcastic on the forum, "Men of Dongyang, is the earth there no longer turning? is it still 08:29?" , "of course the earth is still turning, but other people's watch has stopped selectively!"
The people in the Internet bar were furious and began to hit back on the keyboard. "get ready with paper towels, and don't wet your underwear when you cut off the Internet for a while!" "it doesn't matter if you get your underwear wet, but don't get the computer wet, it will be short-circuited!"
When people fight back, they hope that the master will quickly kill the other side's website and vent his anger. As a result, an hour has passed, the other side's website is still alive, and the strength of everyone's counterattack is slowly weakening, almost nothing. The hot-tempered man has begun to scold and scold: "Damn it, it's enough to build a computer for such a long time, can it be dark in the end?"
The boss also clapped the keyboard, "Day, wait for an hour, it's enough for me to make the next copy!"
Hu Yifei knew a little bit, thinking that he was probably going to be disappointed today. The master of Agricultural University is quite reliable, running an automatic attacker, as long as you fill in the other party's IP, you can automatically make the other party's blue screen crash, the IP address is also correct, the tool is not useless, it is a little bit, the target of the attack must be the WIN98 system. But Hu Yifei hasn't seen that kind of old-fashioned system since the day he used the computer.
After a little more time, the voice of questioning became louder and louder, and the boss in black could no longer stand it. He began to sweat on his forehead and discussed what to do with the person in charge of other schools.
The boss of the School of political Science and Law muttered to his younger brother for a while and said, "my brother says he has a tool that will definitely work!"
The boss in black hastened to give up the seat with a hot ass. "Let him try!"
The little brother was so proud that he went to sit down, took out the prepared flash drive and plugged it in, found a tool, filled in an IP, and then clicked the "attack" button.
"all right! Nandian's website can't be opened! " In a moment, someone shouted.
Hu Yifei hurriedly turned to refresh the web page, and sure enough, Nandian's website could not be opened. Damn, the artifact, Hu Yifei was delighted, thinking that even if it was a soft and hard bubble, he must get that person's tools.
Cheers were finally issued in the Internet bar, and everyone roared: "grandson of Nandian, now you know how good Grandpa is!"
"number 127! What are the people on machine 127 doing? " The broadcast in the Internet bar suddenly heard the roar of the network administrator, "Damn it, the Internet bar has been attacked by you and dropped the line!"
Everyone was dumbfounded and went to refresh the web page, only to find that not only the Nandian website, but also all the websites could not be opened. Then, "my Day" and "I rely on" the voice of "I fuck" rose one after another in Internet cafes, and many people were kicked out of the game.
The network manager rushed over and grabbed the guy on machine 127. "what the hell are you doing?"
"I. I attacked Nandian's website! " The little brother is so good at heart that he is still calm at this time.
"you attack a hammer!" The network manager clicked on the tool running on the desktop and said, "you are blind. Can't you see the name of the tool?" Local area network ARP attackers, damn it, I can't tell the difference between local area network and wide area network. I'm a fucking master, Hammer! "
Everyone was in an uproar, and then they scolded loudly, what a fucking waste of emotion, and the chicken moved for nothing all night.
The owner of the Internet bar was livid at this time, and he was happy. He provided the machine for free, but he did not invite people to attack his Internet bar. At present, he said, "at this level, you dare to come out and lose face. I don't even want to be a network manager here!"
A group of experts flushed and went out of the Internet bar gloomily. The boss in black didn't need the help of the little four eyes this time. He removed the hacker's special keyboard mouse, picked it up and left.
"tear up the banner at the door for me!" The owner of the Internet bar was furious and scolded the network administrator: "send someone else to find them to get the Internet fees back for the past few hours!"