On the top floor of the Sifang Building, in the office lobby, there is a huge office area composed of more than fifty desks. IT elites in their thirties form a powerful defense army. They stare intently at the LCD screen and monitor the operation of the game server. data trends.
Server operation and maintenance is their profession, and their main responsibilities are to be responsible for the technical maintenance of the game server, monitor the server to handle abnormal conditions, and ensure the normal operation of the game server.
"Xinghua International" is wealthy and is willing to spend heavily on hardware facilities. It has purchased thousands of blade servers and built a large number of server clusters in the basement server room. Their job responsibility is to connect to the server through remote desktop and control the operation of "Civilization and War". The server is monitored and maintained.
In order to protect the normal operation of these servers, Xinghua International spent a lot of money to design an underground computer room, equipped with two sets of backup power systems, telecommunications fiber optic networks, and also spent huge sums of money to purchase the world's top firewalls. The protective measures are almost foolproof.
However, if the seemingly simple server operation and maintenance work encounters malicious hackers, manual defense will become extremely important.
"Mr. Chen, many abnormal files were found in the jboss directory of server No. 21. Do you want to block the network?" The silent office hall was suddenly broken by a nervous voice.
"Kick No. 21 out of the server cluster immediately!" Chen Fan, the technical director, was startled and ordered quickly.
"Understood!" The technician took the order and immediately started operating the computer.
"What is the content of the abnormal file?" Chen Fan walked behind the technician.
"Multiple war packages are deployed in each file, which is equivalent to many sub-sites. Each site is a webshell." The technician reported nervously:
Hearing this, Chen Fan took a breath and felt chills running down his spine. This was done by the hacker. This idea was too advanced. The webshell was like an access terminal that could remotely connect to the hacker's operations. Once discovered too late, he would be When the other party connects to the webshell, server No. 21 is OVER.
"The other party got in through that loophole, find it quickly!" Chen Fan ordered with a solemn expression.
“I found it, I found it, it’s a vulnerability in the management console,” the technician reported in surprise.
"Very good, block it." Chen Fan nodded with satisfaction, then left his subordinates alone and ordered: "Everyone, please pay attention and check carefully to see if you have found any Trojan horse scripts disguised as system jboss programs."
"clear."
"Supervisor, the second team didn't find anything."
"The fourth group didn't find anything."
“…”
After Chen Fan's order was issued, he quickly received reports one after another from his subordinates.
Hearing this, Chen Fan immediately breathed a sigh of relief. There were no signs of other groups' servers being attacked by this hacker, which was a blessing among misfortunes.
"Continue to monitor, everyone cannot let down their guard." Chen Fan explained.
"Mr. Chen, I found something abnormal here." As soon as Chen Fan finished speaking, another team member reported.
Chen Fan was taken aback and ran quickly behind the technician. After seeing the LCD screen, he breathed a sigh of relief.
"The other party used a data-driven attack, causing a large amount of data to overflow." The technician looked at the LCD screen and nervously reported to Chen Fan.
Chen Fan gave the technician a reassuring smile and said comfortingly: "The other party is so incompetent that it uses unexpected attacks. Don't worry about it. Our firewall can handle it."
"Mr. Chen, I also have a problem here." As soon as Chen Fan finished speaking, another voice followed.
The smile on Chen Fan's face suddenly froze, and he immediately rushed to another "fire point" like a "fireman".
"Mr. Chen, you are a bit tricky. There is no fake IP data. Many user connections were terminated without reason. The other party used DDoS attacks." The technician nervously reported the situation to Chen Fan while controlling the computer.
"Let's see, it's a traffic flood attack, damn it! How many 'broilers' did the other party use for such a large amount of access data!" After taking a look at the LCD screen, Chen Fan immediately darkened his face and cursed loudly.
After scolding, Chen Fan quickly sat in front of the empty seat next to him, faced the computer screen, put his hands on the keyboard and started typing.
DDoS attack is a very common and disgusting hacker attack method. First, the attack target is collected, including the address, configuration, performance, and bandwidth of the target host. Then the attacker uses tools to scan those vulnerable machines on the Internet, occupy and Control a large number of puppet machines, that is, "broilers". Finally, the attacker issues commands to the agent host "broiler". At this time, the DDoS attack program ambushed in the "broiler" will respond to the console command and send it to the victim host at a high speed. A large number of data packets generate a flood-like amount of data, causing the victim host to crash or be unable to respond to normal requests.
“…”
Various hacker attack methods are constantly being staged at the "Xinghua International" headquarters. Chen Fan and his subordinates are struggling to deal with it, from morning to night, in this invisible war.
Sensing the tense working atmosphere in the technical department, Zhou Wenhua frequently left the office and inspected the site. Affected by the tense atmosphere, he became uneasy.
"Ziyu, what is that kid Xiaoxing doing in the room?" Zhou Wenhua endured for a long time and finally couldn't help asking Zhu Ziyu behind him.
"Mr. Zhou, your nephew seems to be sleeping." Zhu Ziyu hesitated for a moment and did not dare to conceal the report.
Hearing this, Zhou Wenhua's face turned dark. That little bastard, I am worried here, but he hides and sleeps peacefully. He holds the majority of the shares of this game company, how can he not care at all!
"Mr. Zhou, where are you going?" Zhu Ziyu watched Zhou Wenhua leave angrily and quickly chased after him.