Turing Forbidden Zone

A group of students clashed at the door of the dormitory building, and soon attracted the dormitory administrator Li Xiang.

They had all seen this administrator before. He was a frail man in his twenties who was in charge of the water and electricity network of the entire building and often did clerical work in the dormitory management office on the first floor.

After Li Xiang arrived, he quickly gave the students [-] big boards each, saying: "I will call the head teachers of each class to come over, and don't run away. You are really... don't you know to ask the teacher first? If you speculate wildly and spread rumors on the Internet, at least you should have evidence first before you suspect your classmates."

When he said this, the black mask and others all lowered their heads.

Someone whispered: "It's all because that post was too much...and Yan Kairui is also gay..."

"It doesn't matter what he is, he didn't do anything illegal, why should he be bullied by you?" Li Xiang reprimanded, "Even if he really suffers from an infectious disease, as a classmate, he should be more careful to help him instead of What's the point of chasing and intercepting like this?"

Everyone didn't dare to speak anymore, and bowed their heads to apologize.

Yan Kairui's eyes were red and he didn't speak, but Li Xiang said: "You too, when you encounter such a big matter, do you want to deal with it by yourself without saying a word? I think you don't go back to the dormitory. I'll give you anything you want. You take it. I'll take you to the dean later, don't run around until the matter is cleared up, okay?"

Yan Kairui nodded.

Chu Ying crossed her arms and waited impatiently, looking down at her phone.

It was only then that he scribbled through the post that caused the incident, and asked suspiciously, "It's only been a few hours, why is it so popular? Is there someone deliberately making trouble behind his back, trying to mess with Yan Kairui?"

As a result, as soon as he finished speaking, Li Xiang also turned his head and reprimanded him: "What are you thinking about? In such a big campus, there are conspiracy theories all day long."

Chu Yingzong was a little dissatisfied, and his intuition told him that things were not that simple.

He took out the post and showed it to Li Xiang, and said: "Just this landlord, who found out such a horrible social revenge post, who wouldn't be angry after reading that? I just wanted to block Yan Kairui when I read it— And why is the landlord checking Yan Kairui's IP? It's clear that he wants to mess with him."

Li Xiang pondered for a moment, but still shook his head: "Okay, don't worry about it, go back to your dormitory. I will ask the teachers to continue watching this matter."

As he spoke, he couldn't help but drive Chu Yingzong out of the junior dormitory.

Chu Ying went out, but still felt that something was wrong.

He came here today to play with Shi Ye, but after encountering this incident by accident, his mind could not help but be occupied by great confusion.

He fidgeted and thought for a while, and finally decided to go to the library. The first thing he did was search——

What is XSS?

What is CSRF?

What is Shiye talking about? ?

The search engine told Chu Yingzong:

XSS, Cross-sitescripting, cross-site scripting.It is a hacking method of code injection, which can inject malicious code into a web page, allowing users who view the web page to execute the code.

CSRF, Cross-siterequestforgery, cross-site request forgery.It is also a hack that tricks a user into making a request to a trusted website in order to perform some action.

Chu Yingzong: "..."

Rao spent a lot of time to understand the principles of these two attacks based on his junior year knowledge reserve.

It is really the lack of my country's higher education in the field of network security. It cannot be blamed that students are blind to these words.

After 2 hours.

Chu Ying spent a lot of effort to sort out the information she understood, and spent a lot of time reorganizing the sentences, trying to write as easy as possible.

He looked through the school forum, because the original post of "reporting" Yan Kairui had been banned by the administrator, so he opened a new post.

[Shi Hammer explained: There may be two different users under the same IP.Don't diss innocent students anymore, ignorance is not your fault, but you can't be both ignorant and vicious. 】

The title is very venomous, which fits Senior Chu's style.

He deliberately made use of this specialty in order to make the post popular as soon as possible so that everyone can see it.

In this post, Chu Yingzong explained in detail the three things of NAT, XSS and CSRF, and why the same IP cannot prove that Yan Kairui is the AIDS patient who posted the newspaper.

Because it was a hot event, the traffic came very quickly, and the administrator also pinned it to the top.

The students expressed shock at the new knowledge points:

[Fuck, true or false?I have studied professional courses for two years, and I never knew there was such a thing? ? ? 】

[Thinking carefully, I am terrified, is the host an anonymous hacker! 】

[It's true, I just took it to ask my mentor, he was quite surprised and said how I would know these things...]

[That is to say, the Yan Kairui mentioned in the post next door may really be wronged? 】

Soon, the teacher of the professional course also posted a post to prove it.

They can't say that Yan Kairui is definitely innocent, but at least... all the evidence against him is IP, and IP is not ironclad evidence.

So in the follow-up to this post, the students said one after another:

[Where is the person apologizing?At that time, the people scolding together far exceeded the [-]th floor, so it's time to squeak now...]

[Maybe I really wronged Yan Kairui, I'm sorry! 】

[What's really frightening about this incident is: IPs can really be hit by chance, and they can even be framed!If the person who was framed was not Yan Kairui, but yourself, then you would suddenly betray your relatives overnight, be kicked out of the dormitory by your classmates, be violent by "just" passers-by online, and become a street rat...]

[However, I am very grateful that there are people like the landlord in the world.He has nothing to do with this matter, but he is willing to stand up for a passerby and spend time and energy to explain it clearly to us.If I were Yan Kairui, I would have nothing to do; but there are people like the landlord, I think this world is really wonderful, and there are really many good people. 】

[Thank you for the popular science.A good person lives a safe life. 】

……

Chu Yingzong read the post slowly, answered some follow-up questions, and finally shook her legs happily.

Because after he finished reading the comments, the first thought in his mind was: Hmph, Shi Ye Elementary School is already so good, you superficial mortals, you just discovered it?

Chu Yingzong, who was flipping through the post, felt happy, but at the same time found that she had received a new text message.

Teacher Xu is texting again!

However, this time seems to be very different from the past.