Turing Forbidden Zone

The author has something to say: Once again, it is all artistic processing, all for the plot, please do not research.

An electronic bird, condensed into a form in the void, quietly landed on Shi Ye's fingertips.

It is petite, no bigger than a palm, shaped like a lyrebird, its crest is composed of sky blue rays of light, the smooth light path extends to the inner tail feathers gradually turning blue and purple, and the last tail feathers are bright bright red, like the flame tail of a meteor .

Lyrebirds, "Lyrebirds".

This is its name.

Shiye took the lyrebird, followed the data flow, and came to the gateway, and saw the manager of this network——

This is a gateway composed of three layers of switches.

It looks like a silver wall, reaching up to the sky and going down to the ground, blocking the only pass between the internal network and the outside world.

There are densely packed ports on the wall, they are neatly arranged, some are open, some are closed, a total of 530 five.

The data galaxies shunted in front of the wall, turned into smaller data, poured into their respective ports, and disappeared inside the door.

Lyrebird blended into the data flow and found the control room of the entire switch internally - the "backstage".

To enter the background, administrator identity is required, that is, account name and password.

——How to get in is the job of the lyrebird.

In the flames of the lyrebird's ever-changing tail feathers, there are thousands of commonly used passwords collected.

It can quickly try passwords from easy to difficult at a speed of 15 per second until it can enter the background.

This process was as fast as lightning, and in Shi Ye's eyes, it was like fireworks bursting in front of the door.

The administrator of this gateway is quite careless, using a set of default accounts and passwords: admin, admin.

The lyrebird tried for just 11 seconds to get through the door.

Shi Ye sat in the position of administrator admin, and then called up the ACL (AccessControlLists) of the entire gateway, the access control list.

ACLnumber3000

......

rule20denytcpdestination-porteq4444

rule25denyudpdestination-porteq1434

rule30permitipsource111.192.45.0

......

The cold data quickly slid across the screen, listing every rule set by the administrator.

These rules determine which devices in the entire building are allowed to access the Internet and which are not; which sources all devices are allowed to communicate with the outside world and which are not; when the Internet is allowed and when it is not...

These rules are implemented from top to bottom, and those who are lower in the ranking must obey those who are higher.

And the third one here is:

[After 11pm, all access to "non-faculty devices" is prohibited. 】

There is a table in the background that lists all "faculty equipment";

Except for the equipment on the table, all the rest will be disconnected from the Internet after 11:[-].

At this time, Shiye has noticed that the first rule in the control list is a newly added rule:

[Allow access to device 192.168.12.68. 】

This rule is quite incompatible, which is what Yan Kairui's "tool" does.

It brutally enters the gateway background, and rudely inserts such a rule that allows Internet access, and puts the priority before all rules.

Indeed, doing so can break the 11 o'clock cut-off rule, but...

As long as the administrator takes a look at it, he will find out where the problem is, and can accurately locate Yan Kairui himself according to his IP.

Shi Ye silently erased Yan Kairui's IP address.

The first rule becomes: [Allow all access from all devices. 】

Next, Shi Ye found the traces left by Yan Kairui's "tools".

It not only modified the ACL of the gateway, but also left a back door to monitor Yan Kairui's data flow at any time.

This is a malicious script under the guise of Signale, not the so-called "campus network automatic unlocking script".

It is like a leech attached to Yan Kairui's data stream, delivering the stolen nutrients to its owner.

Shi Ye picked it off, and stepped on it to pieces.

By analyzing the data sent by this malicious script, Shiye found the creator of the script, a Signale impostor.

The other party set up a fake personal blog on the Internet, and sold the so-called "school gift package" on it, luring ignorant students to pay for these malicious scripts.

Shiye browsed the webpage silently until the last word was read.

The lyrebird waited quietly on his shoulder, but now he called another name:

[shark. 】(shark)

……

August 8st was a hot but calm night.

Except that the freshmen were pleasantly surprised to find that although the dormitory management said that the network was disconnected at 11 o'clock, in fact the network was unimpeded until dawn.

The morning of September 9st was the gathering time for all classes, and the freshmen who had just met were so excited that they chatted nonstop.

Many of them played with their mobile phones all night, with thick dark circles under their eyes, discussing secretly:

"Did you disconnect the internet in your dormitory yesterday?"

"No, I played until 02:30 in the evening... I know, you didn't disconnect the Internet?"

"I thought we were the only ones who were the lucky ones!"

"It's so strange. Could it be that the disconnection that the instructor said was a lie?"

"No, I asked a senior I know, and he said that the Internet should be disconnected, and their building is disconnected! There may be a bug here, or there may be a master who hacked the campus network..."

"Damn it, it's awesome! All of a sudden, the whole building is disconnected from the Internet, which benefits everyone, and I'm totally down!"

……

In the open space where the fourth computer class was, Yan Kairui was huddling in a corner with Wang Gu and talking softly.

Yan Kairui was sweating all over his head, fanning the wind with his hands, and whispered: "Damn it, can't it? God's tool is so powerful, the whole building's internet is down?!!!!"

Wang Gu: "That's amazing..."

Yan Kairui said: "No, then this, I, this... make such a big fuss, what if we are discovered?"

Wang Gu said: "The master hacker is so powerful, shouldn't he?"

"Probably not..." Yan Kairui said uncertainly.

After a while, Yan Kairui took out his mobile phone and wanted to open "Signale's personal blog" to read.

However, he never expected that the page finally displayed "404 not found" - unable to load.

Yan Kairui was dumbfounded: "Fuck, what do you mean? Why is the blog gone?"

He kept refreshing the page in fear, and finally came across an interface by accident——

What appeared to be a black silhouette of a shark.

But this interface disappeared in a flash, and returned to the prompt page that could not be loaded again.

"what's up?"

Yan Kairui anxiously paced around in place, and when he heard an unknown freshman say, "Which God is so powerful", he shook his feet excitedly, wishing he could jump out and yell "I did it!";

But when he heard someone discussing "the instructor will correct it sooner or later", he immediately retracted and ran to the toilet two or three times in fright.

On the way back, he saw Shi Ye again.

Today, the freshmen are about to usher in their first day of military training, and all the students are so hot that they wish they could be shirtless.

Only Shi Ye was wearing a pure black short-sleeved T-shirt and a peaked cap on his head, casting shadows down his entire face.

He stood silently at the end of the line, looking down at the phone in his hand, and no one noticed him for a while.

In other words, it seems that no matter what time, he is out of tune with this noisy and hot world.

Yan Kairui couldn't help observing Shiye many times.

This morning, the students gathered on the playground and listened to the principal's long and dull speech under the scorching sun. Everyone complained impatiently; only Shi Ye stood alone at the end, seemingly indifferent.

It wasn't until later, when Mu Jiangtian, an old professor from the School of Computer Science, came to the stage that Shi Ye raised his head.

Professor Mu did not give a lengthy speech, but simply said a few words: "Welcome to the School of Computer Science, University of D, I hope you can learn something in the past four years and live a fulfilling and happy life.

"Let's talk about an in-school programming competition specially organized this year, called the 'Golden Lotus Cup', which is open to all students of our School of Computer Science. Students who want to participate, you can register in a while, and finish it in the next week Three major programming questions, submitted in the online system.

"The Golden Lotus Cup lasts for seven days. After the end of the last day, the teachers will count the scores. No.1 in the competition has a bonus of 2000 yuan and is eligible to participate in our computer laboratory; the second to fifth places also have corresponding awards. Bonus. I hope everyone will sign up enthusiastically.”

After finishing speaking, Professor Mu wiped off his sweat, and the teacher next to him quickly handed over a tissue.

The gray-haired old man picked up his crutches and walked off the stage slowly.

For this competition, the freshmen on the playground really didn't look enthusiastic.

"The competition that the whole school participated in... It's over, it's over, we haven't attended class, how can we compete with seniors in juniors and seniors?"

"The most important thing is to participate. Or it's for those students who come from competitions."

"Oh, it's arranged at the beginning of school, and it's made clear that freshmen are not going to participate, come on."

During the conversation, Sun Lezhi, the instructor of the fourth computer class, had already walked over and said with a smile on his face: "Students, be quiet! There will be a speech by the dean in the morning..."

The freshmen booed in great disappointment.

Sun Lezhi added: "I'm here now, to ask if you are planning to participate in the Golden Lotus Cup? If so, come with me and sign up. The rest of you are here to wait for the clothes for the military training. We will start formal military training in the afternoon."

The freshmen looked at each other without any response.

Yan Kairui hesitated for a while, he had some basic programming skills, and his family enrolled him in an interest class, but his level was really mediocre, so he was afraid of being ashamed if he took it directly.

While he was struggling, he saw a tall figure coming from behind.

——Shi Ye walked over.

It can be seen that when he saw Shi Ye, Sun Lezhi was also a little surprised, and asked, "Do you want to sign up?"

"Yeah." Shi Ye said lightly.

The deep voice attracted the attention of the students behind, and they craned their necks curiously to look.

The few girls in the front row were chatting and laughing in low voices, but at this moment they looked this way inadvertently, and suddenly covered their mouths: "Yeah..."

"My God..."

"Shhh!!"

Sun Lezhi also reacted after being taken aback for a while, and said, "Okay, is there anyone else?"

When Yan Kairui saw that someone was taking the lead, he immediately gained courage and stood up and said, "I want to sign up too."

Sun Lezhi took a look and confirmed that there were no other people, and said, "Okay, you two come with me to sign up."

After the three of them left, the freshmen in the team were quiet for a while, and immediately a more intense discussion broke out.

"Did you see it! Did you see it!!"

"Yeah, is he from our class? Is he really from our class? I suddenly feel that there is hope for four years of life!"

"Hey, why are these girls so exaggerated? Is he so handsome?"

"I forgot to take a picture just now..."

"One thing to say, he is quite handsome, but he is just a little bit more handsome than me. When the military training is over, hehe, all blacks are equal!"