Chen Qiaoshan was already very familiar with the Tsinghua campus, and following Wang Sifeng and Yao Yong, he walked into the campus again.

The buildings of Tsinghua University are a little old, and there are many old houses with red brick or gray brick exterior walls on the campus, some of which are old buildings with a history of seventy or eighty years, and some of which are newly built in the seventies and eighties, but with the precipitation of time, they have long lost their brilliance.

Of course, Tsinghua's architecture is not limited to these two hues, and the entire campus is composed of four colors: black, white, red, and gray.

Seeing Chen Qiaoshan looking around, Yao Yong asked, "What are you looking at?"

Chen Qiaoshan did not return head-on, but said: "Your Tsinghua University is historical enough, and the teaching buildings are getting older and older. ”

Yao Yong said with a smile: "That's a strong cultural accumulation, okay, you can't understand it as a landlord and old wealth." ”

Chen Qiaoshan smiled, humanistic accumulation also needs money to support.

The appearance of the old building does look very historical, but the utilization rate is not high, and the annual maintenance also requires a large amount of money, which is not as cost-effective as the in-situ renovation, but history is history after all, and the value of its internal representation is far from being replaced by reinforced concrete.

Chen Qiaoshan also has a deep understanding that when he went to the Yellow Crane Tower before, the moment he saw the elevator in the building, his interest was almost defeated, and there was no longer Cui Hao's feeling of "the Yellow Crane Tower is empty here".

In the distance, a group of red buildings protruded, covering the slightly low buildings around him, and Chen Qiaoshan couldn't help asking, "What is that place?"

Yao Yong glanced at it, "There is the Six Sects, which was just built last year, what is it called Yue Yuen Building, which was donated by a Taiwanese capitalist." ”

Chen Qiaoshan is not surprised, there are not a few people who like to donate in Qingbei, Tsinghua University is in Weilun Building, which is named after Hong Kong banker Li Guowei and his wife Yi Helen.

Lee Kwok Wai was born into a famous family and is a well-known philanthropist on Hong Kong Island, and his ancestor is Lee, one of the four major families in Hong Kong and the United Kingdom.

The Li family started by selling opium in the early years, and later set foot in real estate to become a generation of wealthy families, and the grievances and hatreds of several generations can also be called a realistic version of a bloody drama.

Chen Qiaoshan doesn't remember that there was a Hong Kong and Taiwan tycoon named "Yue Yuen", but Zheng Yutong Building did, but that was later the Tsinghua Medical Building, a few years later, "Network administrator, why haven't you heard this name?"

Yao Yong smiled: "Don't think about it, Yue Yuen is a Taiwanese-funded enterprise." ”

Chen Qiaoshan felt very wrong, he still remembered that in later generations, because of the four religions, he was named "Zhenweiss Building", which caused a big turmoil, and they were also sponsored by money, one was scolded to the point of incompleteness, and the other was ignored, this contrast is really strong.

……

When he arrived at SME, Chen Qiaoshan asked, "Have you got in touch with people, and where did you meet?"

Wang Sifeng said: "I haven't been contacted yet, but I have his mobile phone number, but the phone is turned off, and Dr. Ye said that he must be at school." ”

Chen Qiaoshan is a little embarrassed, such a big campus, who knows where people are, "So what now, where to find someone?"

Yao Yong said with a smile: "I have asked someone to inquire, there is Professor Li's advanced microeconomics in the afternoon, and Shen Jiye must be in class at this time." ”

"Just come to the door like this?" Chen Qiaoshan hesitated a little, although he didn't do anything bad, but he made people lose face, and it would inevitably make people feel embarrassed to meet Professor Li Daokui again.

Wang Sifeng reminded: "Don't think so much, you can't delay any longer, find out the people first." ”

Chen Qiaoshan stubbornly agreed, he went to the computer room to see, including Dai Zhikang, everyone was helpless.

Since the outbreak of the Sino-US hacker war, cyber attacks have come to the fore overnight, and until now, the Huaxia Hacker Alliance has been attacking every day.

The reality is cruel, far from being as easy as in film and television dramas.

DDoS attacks are the most powerful and difficult cyber attacks to defend against, making them unable to provide normal services to a designated target or even disappearing from the Internet.

So far, this is a world-class security issue that cannot be completely solved, only temporarily mitigated.

Chen Qiaoshan knew very well that when it came to professional problems, he couldn't intervene, so he could only find professionals to solve them, and even Wang Sifeng couldn't deal with them, so he could only put his hope on Shen Jiye.

According to the address that Yao Yong inquired, several people touched a small classroom and did not rush in.

Chen Qiaoshan glanced inside, and a thin teacher was standing on the podium, with seven or eight students sitting sparsely below.

The person on the podium should be Professor Li Daokui, less than forty years old, properly young and promising, as for Shen Jiye, there is really no way to tell, only the back of the student.

"What's the matter, call people out?" asked Yao Yong.

It's still class time, Chen Qiaoshan doesn't want to be too eye-catching, "Forget it, go in and wait." With that, he entered the classroom, found a seat in the back row, and the two followed.

On the stage, he was talking about random advantage, Chen Qiaoshan came in halfway, a little cloudy, but in the end, he still listened to it, and the two people next to him only lasted a few minutes, and then they lost their energy.

When the course ended, the three of them did not attract the attention of others, nor did they contact Professor Li, and directly found Shen Jiye.

"You came to me?" Shen Jiye glanced at the visitor, obviously a little surprised.

Chen Qiaoshan didn't beat around the bush, and directly clarified the intention, "Mr. Shen, we are from the Qingshan Forum, and the website was attacked by DDos in the afternoon, and I want to ask you for advice." ”

Shen Jiye was stunned, he knew that the Qingshan Forum has a good reputation now, especially in the financial sector, and the last time he made a bet with the Internet celebrities in Tianya, the bet of 100,000 yuan is not small, and countless netizens are waiting for the results.

The small and medium-sized board has not been around for a few days, and when Han's Laser is listed, whether it wins or loses, the two forums will definitely have to be popular again.

Shen Jiye is a little aggrieved, people can make a forum prosperous, but their own entrepreneurship has hit a wall one after another, NSFOCUS is still a nameless generation, can he only nest in Zhongguancun in this life, and it is impossible to rent a counter to sell computers.

Everyone came to the door, and Shen Jiye couldn't shirk it, so he asked about the specific situation.

Wang Sifeng said: "It's a Syn and Flood attack, and our server can't respond. ”

When it comes to professional issues, Chen Qiaoshan can't get involved, so he simply leaves the problems to Wang Sifeng and Yao Yong to deal with.

After chatting for a while, Shen Jiye roughly knew the seriousness of the problem.

NSFOCUS's current products are specifically designed to deal with DDos attacks, and he naturally understands the situation of the Tsingshan Forum, "Syn and Flood have been out for less than two years, and they are new technologies, and they are very troublesome to solve. ”

Wang Sifeng was very anxious, it was impossible for the forum to be down all the time, and the loss would be too great if it continued like this, and he even wanted to persuade Chen Qiaoshan to spend money to eliminate the disaster, "Mr. Shen, is there really no way at all?"

Shen Jiye can understand the feelings of several people, his understanding of DDos is much deeper than that of ordinary hackers, and he thought about it, "There is a way, but it is very troublesome to deal with the symptoms." ”

Yao Yong said: "Whether it's good or not, you tell us about it first." ”

Shen Jiye didn't hide his secrets, and said directly: "One is to shorten the timeout response time of Syn, which can reduce the server load exponentially, but it may affect normal users, and the other is to screen for IP, but it can't deal with IP spoofing." ”

Chen Qiaoshan said: "Mr. Shen, I would like to ask you to give us some technical guidance, if possible, I hope to cooperate with Lvsheng in depth." ”

"In-depth cooperation?" Shen Jiye muttered, he didn't know how many days NSFOCUS would last.

In order to engage in R&D, he gave everything he had, but unfortunately the product was not cared for, and if it could not find a profit point, NSFOCUS would be able to close its doors.

Not only Shen Jiye, but also Wang Sifeng and Yao Yong were surprised, and they couldn't figure out how to cooperate deeply with NSOP.

Since hearing the word "black hole", Chen Qiaoshan can't be calm, he doesn't know NSFOCUS, but the black hole is too famous, and the most notorious hacking tool in history, CC attack, was born to challenge the black hole.