(New book period, ask for flowers, ask for collection!) Here we go. ”

After the IP address of the server receiving the attack was sent, a curve graph of the server traffic monitoring software installed on the computer in front of Gu Wolf suddenly became extremely steep and upward, showing that the traffic data began to surge wildly.

"It's not DDoS, it's better than DDoS!"

Tang Xinyu looked at the curve that kept rising wildly, and couldn't help sighing, at this moment, his palms were full of sweat, although he knew that the throughput of the server that was attacked in the company was extremely large, and the Xuanne Firewall had a very intelligent strategy to prevent network congestion, but seeing the network traffic soaring vigorously, he still felt very nervous, worried that the server would suddenly face such a large network traffic and would not be able to support the collapse.

Gu Wolf opened another piece of software, looked at the attack log that the firewall had received now, and said with an indifferent smile: "This is the first test, it seems that the network traffic has risen sharply, but it is all some cannon fodder, or some script boys, using the tools provided by the masters on the forum to attack, although fierce, but there is nothing to worry about, and when the cannon fodder is defeated, it is the turn of those real masters hiding behind the scenes, and the real test will come." ”

"Brother, the Xuan Ne Firewall is a technology provided by Feonix, and you will rely on it to fight the world for a long time in the future, so you have a little confidence, okay?" Tang Sa saw that Tang Xinyu was still nervous on the side, and said with a smile, although she said so, she was actually very nervous.

"Well, I'm actually very confident, but if I care, I'm confused, and I can't help it." Tang Xinyu nodded and said.

If the network traffic reaches or exceeds the maximum value that the network bandwidth can bear, even if the server can handle it, but the network will be blocked, and no one will be able to come in, this situation is like a factory, obviously the production capacity is very strong, but the road to the factory is blocked, the raw materials can not be transported in, the products can not go out, to some extent, this is also a DDoS attack success.

Of course, in reality, the factory will take corresponding measures for this situation, or further widen the road, or send special personnel to the road to manage and dredge to ensure that the road is smooth.

For the server that receives the attack, it is also necessary to take certain measures to prevent network congestion, widen the road, that is, increase the bandwidth is impossible, then only send road dredging personnel to the road to dredge, and all this will be automatically executed by the Xuan Ne firewall.

One of the most important means of preventing DDoS attacks is to detect the network traffic of the server and the growth trend of the traffic, intelligently judge the upcoming bandwidth situation, and take measures when necessary to prevent network congestion caused by overload of server bandwidth.

Therefore, when Gu Wolf sent out the IP address and the network traffic began to grow wildly, the Xuanne Firewall had already begun to screen and judge the data flow from the attack when it was defending against various endless attacks, but the network traffic had not yet reached the upper limit of the firewall to take further measures, and it did not take further measures.

However, as traffic continued to increase, it soon reached the upper limit of what the firewall could do further, and the firewall took action.

…………

"Quack, the service is denied, that IP address is no longer accessible!"

"You can't even resist a simple denial of service attack, and you have to challenge the whole network, haha, Gu Wolf, you are too arrogant!"

“……”

With the further action of the firewall, for a while, many script boys who stayed up late and sat in front of the computer, using network tools downloaded from the network, or scripts to attack, suddenly found that their attacks were rejected, and even the IP address of the server could not be accessed, so with the simple network attack and defense knowledge learned on the network, the following judgment was made: The server set by Gu Wolf was suddenly congested due to a large number of attacks, and the server could not react, that is, They inadvertently cooperated with a distributed denial-of-service attack (DDoS) and it succeeded.

As a result, people began to post on forums or broadcast on an IRC channel to celebrate, and many people immediately responded, as many people were denied attacks, and these forums and IRC chat channels became lively again after a brief lull.

"A group of whites, who don't know how to pretend to understand, shout indiscriminately!"

Gu Wolf looked at the noisy forum and sneered coldly, and didn't pay attention to the clamor of these guys, but posted a post on one of the most popular forums, in the post, he gave a web address, and asked those guys who were clamoring for the paralysis of the Xuan Ne server to change an IP address, go to the URL he gave to see, the reason for changing the IP address is because the IP address that those guys are using has been blocked by the Xuan Ne Firewall.

This post was quickly refined and pinned by the forum moderators, so some onlookers opened the URL first, but what they saw was a long list, each line of this list is an IP address, and a short description later, after reading these instructions, everyone understands that this is a list of IP addresses blocked by the Xuan Ne server, and this explanation gives the reason why this IP address is blocked.

A few minutes after Gu Wolf's post was sent, the guys who shouted that the Xuan Ne server had been paralyzed collectively lost their voices, only their previous post mocking the Xuan Ne server was still hanging high on the front page of the forum, accepting the ridicule of the latecomers, which was quite ironic.

Soon, Gu Wolf's post was forwarded to other forums and many IRC chat rooms, and a farce-like uproar quickly subsided.

The attack is still continuing, but compared to the time just after 0:00 in the morning, the growth of network traffic has passed its peak, gradually leveled off, and began to decline.

At 0:00 on the first day of January, within just ten minutes after Gu Wolf released the IP address of the Xuanne server, their server was accessed millions of times in total, of which the peak of access occurred in the seventh minute, such data is much smaller than the maximum number of visits per second experienced by those large companies in later generations, such as Taobao, Baidu, and Tencent, but you must know that there is only one Xuanne server, and Taobao, Baidu, Tencent and other companies, in order to ensure that the server responds normally in the case of a sharp increase in access data, Distributed server clusters with a large number of servers are generally used, and there is no comparison with the maximum number of visits that a single server can withstand.

After the server traffic gradually stabilized, Gu Wolf looked at the time, and more than half an hour had passed, so he turned his head to Tang Xinyu and Tang Sa and said: "This wave of attacks is over, but the cannon fodder is not done making trouble, the real masters will not make easy moves, and there should be nothing to see today." ”

"Okay, it's almost a little bit, my sister is resting, you two can stay here." Tang Sa yawned and said, and after speaking, Tingting left, leaving Tang Xinyu and Gu Wolf still by the computer.

"Gu Wolf, we set the challenge for half a month, isn't it too long?" Tang Xinyu stretched, moved his body, and then asked.

"If they can't attack it after setting it up for so long, doesn't it show that our firewall is strong?" Gu Wolf joked, and then explained, "Really to hack a server, is not as simple as imagined, in addition to technology, patience and time are also essential, it takes a lot of time to analyze the server password password, scan for vulnerabilities, even if the vulnerability is found, in order to find the vulnerability found by the analysis, it also takes a lot of time, half a month is not a long time for a real master, if we set the time is too short, it will be realized, it is difficult to be convincing." ”

"I see, hehe." Tang Xinyu said, "I thought that the master's move would be like what is written in a martial arts novel, and it will take less time to defeat the enemy with one move?" ”

"It takes longer for a master to be a master, and it is also written in martial arts novels that if a master moves between him, he will fight for three days and three nights, or even ten days and a half months, the sky is dark, and the mountains are falling and the ground is cracking." Gu Wolf smiled.

While the two were chatting, suddenly the computer emitted a dripping alarm sound, which attracted the attention of the two of them, but they saw that the network traffic skyrocketed, almost instantly exceeding the highest value just reached, and the curve changed from the original green to orange-red.

"There's a master coming." Gu Wolf looked serious and said in a deep voice.