tunneling attack

Crawlers-100 million lines of comics against attack, and 100 million lines of crawlers against attack Xiaomiao's nagging words: this blog is about using python to write a crawler tool. Why write this crawler? The reason is that after watching the animated film "The Dark burcirt", meow wants to see cartoons again. The results show that all the major apps have no resources, so it's hard to find a website to v

Attack python Article 3: basic, attack python Article 3Basic collection sequence unpacking Example: >>>x,y,z=1,2,3>>>print x,y,z1 2 3 It's okay to exchange variables. >>> X, y = y, x >>> print x, y, z2 1 3 # This is very practical.This feature is particularly useful when a function or method returns tuples (or other sequences or iteratable objects. If you need to obtain (and delete) any key-value pairs in

Due to the inherent deficiency of IIS, it is easy for intruders to identify the category of the system. Believe it? Telnet to a system with IIS installed and enter a get command to check what is going on? As shown in 1, the system tells you without reservation that this system uses IIS5.0, which indirectly indicates that "I" is Windows 2000. Figure 1 A little scared? Okay. Now let's attack the virus and let the IIS display information be changed accor

Due to the inherent deficiency of IIS, it is easy for intruders to identify the category of the system. Believe it? Telnet to a system with IIS installed and enter a get command to check what is going on? As shown in 1, the system tells you without reservation that this system uses IIS5.0, which indirectly indicates that "I" is Windows 2000. A little scared? Okay. Now let's attack the virus and let the IIS display information be changed according to

Prevent SYN attacks (one of the Ddoos attacks) The code is as follows Copy Code Iptables-i input-p tcp--syn-m limit--limit 1/s-j ACCEPTIptables-i forward-p tcp--syn-m limit--limit 1/s-j ACCEPT Prevent various port scans The code is as follows Copy Code Iptables-a forward-p tcp--tcp-flags syn,ack,fin,rst rst-m limit--limit 1/s-j ACCEPT Ping flood Attack (ping of Death)

is not the focus of this article, it can be SSH file transfer can also be a simple HTTP GET and post, the technique is not very large, A few of the techniques that are hidden by transmission, such as using DNS tunneling to hide traffic, can be explained in detail later.0x01 IP Address: Low difficulty, easy to get caughtThis is the most common type of Cc server. The attacker hardcoded the IP address of the CC server in the code of the malware and then

From the 07 of the Estonian DDoS information war, to this year Guangxi Nanning 30 internet cafes suffered from DDoS ransomware, and then to the Sina network suffered a DDoS attack can not provide external services for more than 500 minutes. DDoS intensified, attacks increased significantly, the attack traffic is also significantly increased, the situation is very serious, more than 1G of

DDoS attack conceptThere are many types of Dos attacks, the most basic Dos attack is to use reasonable service requests to consume excessive service resources, so that legitimate users can not get the response of the service.DDoS attack is a kind of attack method based on traditional Dos

What is DoS attack? DOS is denialService. DOS refers to the defect of the intentional attack network protocol or the cruelly depletion of the resources of the attacked object through brutal means, in order to make the target computer or network unableProvides normal service or resource access to stop or even crash the target system service system. This attack do

Gray hat hackers: Ethics, penetration testing, attack methods, and vulnerability analysis technology of just hackers (version 3rd)Basic InformationOriginal Title: gray hat hacking: the Ethical hacker's handbook, Third EditionAuthor: [us] Shon Harris Allen Harper [Introduction by translators]Translator: Yang Mingjun Han Zhiwen Cheng WenjunSeries name: Security Technology classic TranslationPress: Tsinghua University PressISBN: 9787302301509Mounting tim

Return-into-libc Attack and Defense This article first analyzes the principles of return-into-libc attacks, and introduces the experimental processes and results of traditional return-into-libc attacks on different platforms. Then, this article further introduces and explains the attack methods of the return-oriented programming. This attack can make up for the s

I. Distributed blocking services (distributed denial of service) DDoS is a special case of DoS, hackers use multiple machines to attack at the same time to prevent normal users to use the service. After hackers have invaded a large number of hosts beforehand, to install DDoS attack on the victim host to attack the target; some DDoS tools use a multi-level archit

Find a wireless network Finding a wireless network is the first step in an attack, where two common tools are recommended: 1, Network Stumbler a.k.a NetStumbler. This windows-based tool makes it very easy to find radio signals that are broadcast in a range, and to determine which signals or noise information can be used for site measurements. 2, Kismet. A key feature of the lack of NetStumbler is to show which wireless networks do not have a broa

The following article describes the prevention of four levels of attack to ensure the security of Linux servers, if you are against four levels of attack to ensure that the Linux server security is curious, the following article will uncover its mystery. With the continuous expansion of Linux enterprise applications. has a large number of network servers that are using the Linux operating system. The secu

Dos attacks, DDoS attacks, and DrDoS attacks believe that everyone has already heard of it! DOS is the shorthand for denial of service, which is denial of services, and DDoS is the distributed denial of service is the short of distributed denial-of-service, and DrDoS is distributed Reflection denial Abbreviation for service, which is the meaning of distributed reflective denial of service. But the most powerful attack in this 3 is DDoS, the DrDoS

Interruption of services (denial of service) Before discussing DDoS we need to know about DOS, DOS refers to hackers trying to prevent normal users to use the services on the network, such as cutting the building's telephone lines caused users can not talk. and to the network, because of bandwidth, network equipment and server host processing capacity has its limitations, so when the hacker generated excessive network packet so that the device can not be processed, so that normal users can not n

Interruption of services (denial of service) Before discussing DDoS we need to know about DOS, DOS refers to hackers trying to prevent normal users to use the services on the network, such as cutting the building's telephone lines caused users can not talk. and to the network, because of bandwidth, network equipment and server host processing capacity has its limitations, so when the hacker generated excessive network packet so that the device can not be processed, so that normal users can not n

With the expansion of Linux enterprise applications, there are a large number of network servers using the Linux operating system. Linux server security can be more and more attention, here according to the depth of the attack on the Linux server in the Level form, and propose different solutions. The definition of a Linux server attack is that an attack is an un

The Chinese national studies have a long history, profound and profound, and seemingly simple and powerful twenty-four simple Taijiquan, which contains a wide range of attack and defense skills and deserves our learning and thinking; Chinese learning, Chinese technology, too broad, suck its essence, go to its dregs, never learn ~ Author of Chinese martial arts: Wang Fengyang Zhu jianyong Analysis of twenty-four-style Taijiquan

Interruption of services (denial of service) Before discussing DDoS we need to know about DOS, DOS refers to hackers trying to prevent normal users to use the services on the network, such as cutting the building's telephone lines caused users can not talk. and to the network, because of bandwidth, network equipment and server host processing capacity has its limitations, so when the hacker generated excessive network packet so that the device can not be processed, so that normal users can not