"We can't drink alcohol in this underground base." Jiang Yi said helplessly: "You better drink something else!" ”

"Whatever!" Yun Zhan shrugged his shoulders and didn't care, anyway, he didn't really want to drink, he just broke away from Jiang Yi.

Jiang Yi went to prepare for a drink, and Yun Zhan also turned on the computer, of course, not to study the traces of human invasion in various systems of Longmen, but to remotely connect to Mo Zhilin's computer, and she would take care of everything.

After a while, Jiang Yi put a cup of hot coffee on the desk and asked, "How is it?" Did you find anything? ”

Yun Zhan raised his head and asked instead of answering, "What did your people find?" ”

Jiang Yi smiled bitterly and said: "There is no record in Linux's log, and the wrapper also does not record any signs of hackers' activities, so it is certain that these hackers are real masters." ”

"That's for sure!" Yun Zhan asked with a smile, "Are there any traces left by hackers in the firewall?" ”

It seems that Yun Zhan seems to understand the same, but in fact, it is not, because he has put a miniature communication device in his ear, which is developed by Mo Zhilin, which is a unique communication device of the Yun family, and it is difficult for outsiders to find it when placed in the ear, and Yun Zhan can not only hear the person on the other end speak, but the person on the other end can also hear Yun Zhan and the people around Yun Zhan, so Jiang Yi asked, Mo Zhilin has already taught Yun Zhan what to say.

Jiang Yi shook his head helplessly and said, "No! Clearly, these hackers have bypassed the firewall. ”

Yun Zhan raised his eyebrows and said with a smile: "You are so confident in this firewall of yours?" Is it just bypassed by hackers, not breached? ”

"It's hard to break through the firewall, right?" Jiang Yi looked at Yun Zhan with some doubts.

Yun Zhan smiled: "It's really difficult, but didn't you say it too?" These hackers are real masters. ”

"What do you mean?" Jiang Yi frowned, and said a little hurriedly: "Could it be that the hacker has ......?"

Yun Zhan waved his hand and said, "Hmm...... The fire-resistant logs have been deleted by hackers. ”

Although it felt a little incredible, Jiang Yi also knew that the firewall was not impossible to breach, and its logs could also be deleted and modified.

And she also knew that attackers could also launch denial-of-service attacks on firewalls, crippling or at least slowing them down, making it difficult to respond to attacks in a timely manner, compromising the integrity of firewall logs.

"What do we do now?"

"It's fine!" Yun Zhan smiled very negotiably, and then put his eyes on the computer screen, his finger just pressed the enter key, and there were already numbers flashing out on the computer screen.

Yun Zhan didn't do anything more, and after a few minutes, he looked up and smiled, "The firewall logs have been restored." ”

"Restored?" Jiang Yi walked behind Yun Zhan in disbelief, and then leaned over to look at the computer screen.

After seeing the content on the computer, Jiang Yi exclaimed: "Ah...... All the information about the hacker's activity in the firewall is recovered, how do you do it? ”

Yun Zhan raised his eyebrows and said coquettishly: "Military secrets!" ”

"Uh......" Jiang Yi was quite speechless, this guy was obviously taking revenge on her for answering the confidential thing just now, he was really cautious.

However, she also learned some of Yun Zhan's style of action from Yun Shilin, and she didn't care, but said excitedly: "With these numbers, we can track down these attackers." ”

"And then?" Yun Zhan asked with squinted eyes.

Jiang Yi may have been overexcited, and without thinking about it, he responded: "If you find their IP address, you can find them in reality, hmph...... Dare to steal the secrets of Longmen, and he must be made to pay for it. ”

"Uh......" Yun Zhan rolled his eyes and said angrily, "If the IP address is not in Europe, how do you bring them to justice?" ”

Cold water was splashed, Jiang Yi finally came to his senses, and responded depressedly: "Yes, it is impossible for hackers to use real IP addresses." ”

Yun Zhan smiled and said, "That's right! If it were me, it would have been a long-range approach. ”

"What do you mean?" Jiang Yi asked puzzled.

Yun Zhan asked, "Do you know 'jump'?" ”

"Yes!" Jiang Yi also understood what Xi Zaihao meant.

She knows that before hacking, hackers usually try to control a host on the network, exploit the vulnerabilities of the operating system to obtain system privileges, and then use this as a base to access other hosts on the network, which is often called "jumping" by hackers.

Normally, hackers tend to jump like this several times before reaching the target host.

For example, a hacker in the Americas who targets Longmen's network may log in to a host in Europe, log in to a host in Africa from there, jump to Asia, and finally attack Longmen's network from a host in Oceania.

In this way, even if the attacked network finds out where the hacker launched an attack on itself, it is difficult for managers to find it back.

What's more, after the hacker obtains the system privileges of a certain host, he can delete the system log when he exits and cut off the "vine".

As a result, it is very difficult to find the hacker.

Jiang Yi also knew that it was difficult to find out the actual IP of the hacker who used this "jumping" method, and said a little depressedly: "Do you just let them go?" ”

"Indulgence?" Yun Zhan couldn't help laughing and said, "Even if this hacker jumps 10,000 times before he comes in, he can't escape the palm of our hand, so you can put 10,000 hearts!" ”

"Really?" Jiang Yi still didn't believe it, of course, she didn't hear the language problem in Yun Zhan's words, Yun Zhan said the word "we", which naturally would not include Jiang Yi, but someone else.

In other words, the hacker can't escape the palm of his hand is not Yun Zhan's, but Mo Zhilin's, but Yun Zhan shamelessly regarded Mo Zhilin's achievements as his own, fortunately, Jiang Yi in a hurry didn't hear it, otherwise, Yun Zhan was afraid that he would be embarrassed.

"I said okay, you better go and drink something, don't bother me here, since you have chosen me, you should believe me!" Yun Zhan waved his hand and said coaxingly.

"Okay!" Jiang Yi nodded, anyway, there was no way for her to find a hacker in this kind of jump invasion.

So pinning his hopes on Yun Zhan, whether Yun Zhan can really find the hacker or not, it doesn't matter, anyway, a dead horse is a live horse doctor.

"What are you still doing here?" Although Jiang Yi nodded and believed in herself, seeing that the woman still hadn't left, Yun Zhan frowned.

"I want to see how you find the hacker." Jiang Yi glanced at Yun Zhan, and spoke in a very small voice, obviously, she also knew that there was a suspicion of stealing from Yun Zhan's operation in this way, however, although she was also an expert in the network, but the difficult technique of cracking and jumping was not something she could master, obviously, the temptation of learning this technique was too great, even if she knew that it was immoral, she wanted to learn it secretly.

"I'm sorry, but that's also a military secret." Yun Zhan glanced at Jiang Yi talkatively, joking, this woman understands network technology, once she starts to crack it, won't he be exposed immediately?

He couldn't pretend to be forced anymore, so he could only ask Jiang Yi to go before letting Mo Zhilin start to solve the matter.

Although Jiang Yi was very curious, seeing that Yun Zhan did not give face, she could not do anything, so she could only leave her office depressed.

Seeing Jiang Yi leaving, Yun Zhan also informed Mo Zhilin to start network tracking, which took about fifteen minutes, and it is said that Mo Zhilin wrote a tracking program in a set of AX-7 language invented by herself, and inserted the action information left by hackers in the system.

Soon, the tracker was up and running.

Well...... It's an auto-tracking program, and after launching, it's all automatic until the hacker's actual IP is found, and there's nothing wrong with Mozhilin.

Mo Zhilin had nothing to do, so Yun Zhan was even more boring, so he walked out of Jiang Yi's office, and saw that Jiang Yi was discussing something with a few staff members, he pointed at Jiang Yi, hooked it, raised his eyebrows, and said, "Hey...... Come here! ”

"What's the matter?" Jiang Yi looked back at Yun Zhan suspiciously.

Yun Zhan smiled and said, "I need beer, you go buy me some and come back." ”

"I told you we can't drink here!" Jiang Yi said helplessly.

"I'm sorry, I can't help with tracking down hackers, my mind won't be clear without beer." Yun Zhan shrugged helplessly.

"You ......" Jiang Yi gritted her teeth angrily, this guy is clearly showing off his power with his skills, and when he sees that he has a request for him, he yells at her, you must know that even if her top boss Yun Shilin faces her, she has to be polite, why does this guy point fingers at her and be a slave?

However, even so, Jiang Yi had no way, and if he wanted to find the hacker who invaded the Longmen weapon information system, he couldn't do without cloud warfare.

Those who seek people have to bow their heads.

"Wait for ......" Jiang Yi shook her hand angrily and helplessly.

And the staff of the Longmen network department looked at each other, when will their heads go to buy wine for a man?

It was so unexpected.

You must know that when you go out from the base at the gate of the Longmen network, you not only have to drive, but you also have to take a helicopter to the city to buy it when you get to the outside of the cave.

That makes the cost of beer high, eh...... Much higher than oil.

But they all admired Yun Zhan a little, normally, Jiang Yi yelled at them to drink five and six, and now someone finally yelled at the head to drink five and six, this feeling is still really amazing.

An hour later, Jiang Yi really returned to the base with a dozen beers, threw the beer in front of Yun Zhan, and said viciously: "Drink you to death!" ”