"Damn! When will I finish writing the program!" Liu Xiao looked at the time, it was already more than two o'clock in the middle of the night, and the program was written less than a third, and he had to test it after writing, and he had a headache when he thought about it. At this time, the sleepiness also came up, but Liu Xiao was always a little unsure if he didn't finish the procedure, so he got up and went to make tea.

As soon as the boiling water was poured into the teacup, Liu Xiao heard his computer start to alarm, which was an anti-intrusion alarm system designed by himself, Liu Xiao had to throw the teacup and quickly ran back.

Turning off the alarm sound, Liu Xiao turned around and swept it again, fortunately, his roommate was not woken up, so he turned his head and turned on the alarm and began to track the machine that invaded his machine.

It's a very unfamiliar IP, but when Liu Xiao opened the network monitoring information, the machine had already broken through its own defense line and began to copy the system permissions, Liu Xiao was shocked, and quickly cut off the connection with the machine, rearranged the defense line, and improved the security level of the defense line again. Then from the log information just now, I tried to analyze how the other party broke through the defense line, the security level of Liu Xiao's machine is very high, and the person who can break through so easily is definitely a master.

After waiting for a long time, the machine seemed to be moving again, Liu Xiao breathed a sigh of relief, it seems that the other party will not be able to find any way for a while.

Liu Xiao didn't dare to be careless, and continued to guard the computer, but he couldn't help but secretly say in his heart that he was unlucky, it was really raining in the house, and the matter of his own program had not been sorted out.

The alarm sounded again, it was still the same IP just now, he initiated an empty connection to Liu Xiao's machine, and then began to transmit some data. Based on experience, Liu Xiao knew that the other party wanted to carry out an overflow attack, but Liu Xiao could not determine what vulnerabilities the other party was exploiting for a while, and he took precautions against all the system vulnerabilities that he knew and discovered.

In order to prevent the overflow of the other party, Liu Xiao hurriedly re-set the system permissions, so that even if the other party overflowed successfully, it was impossible to get the system permissions.

The other party's data is still being sent, Liu Xiao is a little surprised, overflow is a matter of an instant, even if some overflow programs need to be operated many times, but it won't take so long, isn't the other party overflowing? But if the other party is carrying out a flood attack on his own machine, this bit of data is obviously too small and too small.

Just when Liu Xiao was surprised, there was suddenly an extra military flag on his desktop, and then a system message popped up: "Occupy!", and this information came from another IP, Liu Xiao never found that this IP entered his machine, let alone how it came in.

"No!" Liu Xiao was depressed, he was occupied so easily, and it seemed that he had to unpack again.

As soon as the military flag came out, an avatar on Liu Xiao's QQ lit up, and a message was sent, "Boy, there is progress, I can even find my first attack!", the source of the news is "Treading the snow without a trace".

"Your old man has been missing for a few months, you don't need to show up and hit me like this!" Liu Xiao made a bitter face, he wouldn't ask the other party what he had been doing in the past few months, and he wouldn't say anything if he asked.

"You kid got cheap and behaved, and he changed someone else, and he wanted me to hit him, and I wasn't happy about it. ”

Liu Xiao thought to himself that this was also the truth, if the other party really wanted to invade him, as long as he used the method of the second attack, he could unknowingly plant the flag on his computer, then the first attack was just a deliberate reminder to himself.

Liu Xiao and Treading Snow Without a Trace have known each other for more than two years, and the two of them are like this every time, to see who can insert the flag into each other's computers, and Treading Snow Without a Trace has made 16 shots, without a single miss; Liu Xiao has made 53 shots, but has never succeeded, and several times has been counter-invaded by Treading Snow without a Trace.

Liu Xiao admires the technology of stepping on the snow without a trace, every time the other party can enter his computer without him noticing, even if his technology has made great progress in the past two years, the result is still the same.

And stepping on the snow without a trace admires Liu Xiao's perseverance, in order to figure out how he was invaded, this kid completes unpacking alone every time, data unpacking is a very cumbersome thing, a few people do it, and it can't be done in two or three months, and this kid is stunned to do it alone, and he does it once he is invaded. This point is deeply liked by Treading Snow without a Trace, so he will point out Liu Xiao from time to time, and every time he points out, Liu Xiao can have a feeling of epiphany and soaring.

"Alas, when will I be able to grow into a master!" Liu Xiao grinned, expressing dissatisfaction.

"Haha, it's almost there. Count the time, you kid should be graduating soon, right?" Treadsnow Wuxian asked.

"I submitted my resume to Yinfeng Software and Softalliance Technology, but there is no news yet, maybe they don't like me. ”

Treading Snow Traceless sent an angry expression, "These guys don't know where they got their bullshit superiority, your skills are only higher than them, not low." Originally, I wanted you to come and work with me after graduation, but now it seems that it would be better for you to go to that kind of place to practice. ”

Liu Xiao was a little unexpected, Treading Snow Without a Trace had never said what he was doing, but since Treading Snow Without a Trace had changed his attention now, he would definitely not let himself go over to help for the time being, Liu Xiao had no choice but to say: "Thank you, master, for your support, when I can't get along, I'll go to you again." ”

Treading the snow without a trace readily agreed.

Thinking of the program just now, Liu Xiao asked again, "By the way, do you have any programs that are used for 'ferrying' attacks?"

"What do you want that for?" said a strange expression.

"I couldn't say a word, but I made a bet with someone to get the information from a machine that wasn't connected to the Internet. However, my action was approved by him himself, and I also wanted to treat his cyberphobia, hehe. Liu Xiao explained briefly.

Although he felt that Liu Xiao's reason was very strange, he still chose to believe Liu Xiao's words, and the message came, "I have that kind of program, but I haven't used it for several years, wait for me to find it for you." ”

After a few minutes, Liu Xiao received a request to receive the file from Treading Snow without a Trace, and when he received it, he saw that it was the source file of a program, which seemed to be intentionally found by Treading Snow Without a Trace, and Liu Xiao hurriedly thanked him.

"Hey, it's late, I'm going to rest, you kid work harder, and your skills can be improved again." "The head of the snow-treading without a trace darkened.

Liu Xiao opened the source file, and the same as the source programs he received before, the writing of treading snow without a trace is very standardized, just like an article written by a literary giant, with clear paragraphs and clear context, every key place, treading snow without a trace will make a note, explaining the purpose of the code of this paragraph and the writing ideas, looking at the program of treading snow without a trace, it is a very pleasing thing to the eye.

This program shows the super manipulation ability of the bottom layer of the computer hardware without a trace, the date at the end of the program, indicating that this program was written three years ago by stepping on the snow without a trace, Liu Xiao couldn't help but sigh, the ferry technology used in the program was realized by himself half a year ago, although now, this technology has been a little outdated, not hidden enough, but the snow without a trace has been able to use this technology proficiently three years ago, and it is indeed a little too surprising.

Liu Xiao re-corrected the code, especially the final ferry technology, Liu Xiao made it more hidden and reliable, and then set the destination of the ferry as a shadow mailbox for himself.

After doing this, the sky was already dark, and the cup of tea that Liu Xiao had brewed had already been no longer hot, Liu Xiao rubbed his sour eyes, compiled the source code into an executable program, and copied it to his own USB flash drive, even if it was done. Liu Xiao washed his face, and then began to call his roommates up for breakfast.

After breakfast, Liu Xiao took the USB flash drive to the Chunsheng Hotel, and then went straight to the printing department of Zhang's headquarters. Liu Xiao came early, but there was already a person in the printing department who was there to print documents.

Then the man watched very strangely Liu Xiao replace the three computers one by one, and every time he said that his U disk was plugged in and there was no response, the man was very puzzled, plugged in his U disk and tried it, it was normal.

"Is your USB stick broken?" the man asked with concern, "You're new here, aren't you? I don't think I've seen you before." ”

Liu Xiao nodded, looking depressed.

The man patted Liu Xiao on the shoulder, "Brother, buy a USB flash drive of better quality, in our company, this is a must-have, one for everyone." I have acquaintances in the computer city, the quality is absolutely no problem, if you want to buy it, contact me, give you a preferential price, and deliver it to your door. ”

Liu Xiao thanked him again and again, "If I buy it in a while, I'll go over to you!"

Liu Xiao's respectful attitude made the man very comfortable, "My surname is Wang, and I work in the front operation department, if you encounter anything in the company that can't be solved, you can come to me." After speaking, the man left satisfied, and before leaving, he didn't forget to praise a few words, "Young man, work hard, have a future." ”

Liu Xiao watched the man leave, turned around and glanced at the three computers again, with a smug smile on his face, and said, "Everything is ready, only the east wind is owed, let's make up for sleep first." ”

As soon as he arrived at the company, he heard that Liu Xiao had arrived at the company early, so he sent his secretary to Liu Xiao's office under the guise of delivering coffee to reconnoitre, and found that Liu Xiao was lying in a chair and sleeping unconscious. Zhang Chunsheng was a little confused, and he didn't know what tricks Liu Xiao was playing with him.

After thinking about it, he couldn't find a clue, so Zhang Chunsheng had to send his secretary over again and again to investigate, and every time he came back, he said that Liu Xiao was still sleeping.

When I was about to get off work in the afternoon, the secretary went again, and when he came back, he said, "He doesn't sleep anymore!"

Zhang Chunsheng was overjoyed, "Oh? So what is he doing now?"

"He woke up and said he was a little hungry and went back to school!" the secretary was also a little helpless.

Zhang Chunsheng's smile was frozen on his face, what did this kid want to do, he slept for a day, and went back without doing anything, what is going on, if it goes on like this, what year and month will this gamble take to determine the winner and loser. Zhang Chunsheng was a little stupid, he used this trick on the chessboard before - "dragging", but compared to Liu Xiaolai, he was really a little bit of a witch.

"Grandma, no wonder I can't play chess with this kid!" Zhang Chunsheng finally found a reason to excuse his loss, but then said: "No, I have to rush a little, I can't let this kid just keep consuming with himself." ”