Live broadcast: Starting from becoming a hacker to encourage learning

Yuichiro Koizumi looked at the “Master Su Susu” in the live broadcast room, his face was extremely complicated.

For opponents like “Master Su Susu”, he has great reverence.

But.

For such a hacker –

Yuichiro Koizumi hates the people who paralyzed all the systems of his homeland and the whole country of the Sun Country.

He looked at Master Su Su in the live broadcast room, and he gritted his teeth hatefully.

This time, I must find you out in reality!!

Jack pulled up the running window, and then looked at Yuichiro Koizumi, who was gritting his teeth.

“Mr. Koizumi, last time you didn’t do a good job, Mr. President has already made you very dissatisfied. ”

“If it weren’t for our Mr. President, who had finally relented, you Sun Country, I’m afraid you would have to kneel in front of Great Xia now, begging them like dogs to take back the virus. ”

There was no trace of emotion in Jack’s tone, only indifference.

Yuichiro Koizumi nodded slightly, he took a deep breath, and said with an extremely complicated mood: “Mr. Jack, I know. ”

“This time, I will try to bring out all my strengths, work hard, and gain the trust of Mr. President again. ”

Jack nodded noncommittally, then said, “Alright, let’s get started.” ”

“The other professors and the experts, they don’t bother to do such things, that’s why they teach us. ”

“Those bigwigs are the main force studying this ‘Su Su Su Master’, and we are just pioneers. ”

Yuichiro Koizumi heard Jack’s words, nodded slightly, and then also called up the running window, and quickly tapped his hands on the keyboard.

After a while…

Yuichiro Koizumi’s forehead then dripped bean-sized sweat.

He first went through the IP address and then looked for the subdomain.

In many cases, some important sites will be CDNs, while some subdomain sites are not CDN members and are in the same C segment as the main site.

At this point, you can find the real IP of the website by looking up the subdomain.

However, he didn’t expect that such a code would appear-

tcpdump-iany-ntcp-llog.txt

catlog|perl-lneprint$1if(/((d{1,3}.) {3}d{1,3})/)|grep-v10.10.1.123|sort-rn|uniq-c|sort-rn

Finally, find the corresponding IP and reject the corresponding request through the firewall!!

The moment Yuichiro Koizumi saw such a code, his scalp suddenly went numb.

It’s too complicated!!

A defense system made up of countless random passwords, and I don’t know how many servers have been changed!

Even the browser he uses to log in to the website is specially set by himself.

That is, Yuichiro Koizumi’s own strength is okay!

If you are an ordinary person, it is impossible to see so many things through this ordinary line of code.

Yuichiro Koizumi just glanced at it and felt helpless.

He hurriedly turned his head to look at Jack on the side, but saw that Jack’s hands did not stop, and he yelled: “What are you panicking about!? Use the subdomain blasting tool!!”

Yuichiro Koizumi sighed, nodded and continued to attack.

……

Ten minutes later.

Jack and Yuichiro Koizumi were both tired.

They failed.

“Go on!!”

Jack yelled.

……

Twenty minutes later.

Failed again!!

“Go on!!”

“I don’t believe it!!”

……

Thirty minutes later.

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Fail!

……

An hour later.

Fail!!

……

Three hours later.

Jack’s eyes were blood-red.

He stared at the screen with blood-red eyes and muttered to himself.

“Impossible!!Impossible!!”

“How could such a thing happen!?”

“It’s completely unreasonable!!”

“Such an IP hiding method is not necessary!!”

Yuichiro Koizumi reached out and rubbed his somewhat dry eyes, and said a little tiredly.

“Mr. Jack, what should we do now?”

He already wanted to give up.

This IP, no matter how hard they try, is impossible to break.

As a top hacker, especially Yuichiro Koizumi, who has witnessed the true strength of “Master Su Susu”, he knows the strength of “Master Su Su” better than anyone else.

Then, Jack he was not convinced!

He is one of the top cybersecurity experts in the White House.

His strength is much stronger than Yuichiro Koizumi, I don’t know how much stronger!!

How could he just give up!?

In other words, he looked down on “Master Su Susu” from the bottom of his heart, the network anchor of Xia Kingdom, so he couldn’t accept that he couldn’t even find the IP address of an online anchor!!

It’s so humiliating!!

This makes it impossible for a person as arrogant as Jack to accept it.

Jack gasped hard, then hissed and let out a low voice.

“Use SSL certificates to find real IPs!”

“Certificate Authorities (CAs) must publish to a public log every SSL/TLS certificate they issue, which typically contains domain names, subdomains, and email addresses. ”

“In this way, we will definitely be able to…”

“We can sure!”

And yet—

Fail!!

Looking at the constantly refreshing code in front of him that failed to find the IP, Jack sat down in his chair weakly.

He held his head and suddenly began to cry bitterly.

“Fack!!How could this be!!”

“Why!!Why can’t I even find one of his IPs!!”

“Could it be that this person’s strength is already strong to this extent?!”

“……”

In the face of Jack’s collapse, Yuichiro Koizumi was not the slightest surprise.

He took out a cigarette and lit it.

In the midst of the smoke, he saw everything in his eyes.

At this time, he was baptized physically and mentally.

He had clearly recognized the gap in strength between “Master Su Susu” and them.

Nothing to be jealous of.

The difference in strength is too great.

Jealous or something, saying it will only make him laugh on his own.

Isn’t it bad to be a salted fish that only shouts “666”?

What is it compared to such a great god?

Yuichiro Koizumi sighed and opened the live broadcast room.

At this time, Su Ziang has just finished making the software!