cc designs

Introduction Openresty through the aggregation of various well-designed nginx modules (mainly by the Openresty team independently developed), so that Nginx effectively into a powerful common WEB application platform. In this way, web developers and system engineers can use the Lua scripting language to mobilize the various C and LUA modules supported by Nginx to quickly construct high-performance WEB applications capable of concurrent connections of 10K and even more than 1000KFlowchartThis arti

CC attacks are formerly distributed denial-of-service (DDOS) attacks ). The principles of DDOS attacks against TCP/IP protocol defects cannot be considered as defects, but when the Protocol was designed for decades ago, designers assumed that everyone was a good citizen who followed the rules of the game, now the Internet environment is much more complex than at the time, but it is still using the previous protocol, so it will bring some problems. The

Cc. Sprite 1: A picture is displayed in the game. We usually call this "sprite;2: Cocos Creator if you need to display an image, you need to mount a genie component on the node to specify the image to be displayed (spriteframe) for this component );3: to display an image, follow these steps:(1) create a node;(2) Add a component;(3) drag the image to be displayed (spriteframe) to spriteframe;(4) configure the size_mode of the image:A: The size of custo

#!/usr/bin/envpython#-*-coding:utf-8-*-importcsvfrom Email.mime.multipartimportmimemultipartfromemail.mime.textimportmimetextfrom email.mime.applicationimportmimeapplicationfromemail.utilsimportcommaspace , formatdatefromemailimportencodersimporttimedefsend_mail (Server,fro, to,subject,text,chao): asserttype (server) == Dictasserttype (To) ==listmsg= Mimemultipart () msg[' from ']=fromsg[' Subject '] =subjectmsg[' to ']=commaspace.join (to) #commaspace== ', ' msg['

Many examples were found when writing makefile, some of which Bash was CC, and some were GCC, and then went through some of the relevant data. The original CC is the C compiler under UNIX, and GCC is the compiler under Linux. So the question is, are there both compilers under Linux? In fact, both CC and GCC in Linux refer to the C-compiler of GCC. Let's take a lo

Zhanggo blog A long time ago to share a CC attack defense script, write is not good, but was 51CTO accidentally reproduced. Since then, the blog has often been taken to practicing the road of not return. Of course, there are still a lot of friends in the production environment to use, and will leave a message to ask related questions. Based on the needs of these questions, I spent some time writing a more satisfying lightweight

NetEase cc Voice customer service phone number? When you use NetEase cc voice may encounter a lot of problems need to contact NetEase cc Voice customer service, then NetEase cc voice how to contact customer service? The following small series will tell you NetEase cc voice e

Tiny cc compiler, tinycc, variant, tinytinycc -Run parameter removed Download Code and compiled programs If something is wrong, it cannot be generated. It is estimated that you will not use the programming environment or the installation of the programming environment is incorrect.You can download a tinycc minimum C compiler that can be compiled using the command line.Download.savannah.gnu.org/..in.zipA c ++ or C Compilation Principle lexical an

This method is used to passively count the number of IP connections. iptables is used to block IP addresses with a large number of connections. For more information, see iptables to limit the number of ip connections to prevent CC attacks.The Shell script is as follows:#! /Bin/bash# Created by http://www.bkjia.comNum = 100 # Upper LimitList = 'netstat-an | grep ^ tcp. *: 80 | egrep-v 'Listen | 127.0.0.1 '| awk-F "[] + | [:] "'{print $6}' | sort | uniq

Prevents CC breakpoints under a specific function The following is a method for detecting disconnections in GetDlgItemText. Dword winapi ThreadProc (LPVOID lpParam){Typedef UINT (_ stdcall * pGetDlgItemText) (HWND, INT, LPTSTR, INT); // function pointer Declaration PBYTE pByte = (PBYTE) (pGetDlgItemText): GetDlgItemText;For (int I = 0; I {// Check the first five bytesIf (0 = (* pByte ++ ^ 0xcc )){// This is just a simple process of exception or han

Source online can findThe first step is to analyze the source 1. To analyze the client's default allowed clients, please refer to the major station $agent = $_server["Http_user_agent"];　　Block_browser (); 2. Analysis parameters These parameters must have foreach (Array ("passkey", "Info_hash", "peer_id", "event") as $x) { if (isset ($_get["$x"])) $G　　lobals[$x] = $_get[$x]; } foreach (Array ("Port", "downloaded", "uploaded", "left", "compact", "no_peer_id") as $x) { $GLOBALS [$x] = 0

(Akira total) write an iptables rule3est: I thought it was good. I just reprinted it./* It is also a simple anti-CC attack. #! /Bin/shIPTABLES = "/sbin/iptables"Echo "1">/proc/sys/net/ipv4/ip_forward$ IPTABLES-P INPUT DROP$ IPTABLES-P FORWARD DROP$ IPTABLES-P OUTPUT DROP$ IPTABLES-F$ IPTABLES-X$ IPTABLES-Z# $ IPTABLES-a input-m state-state ESTABLISHED, RELATED-j ACCEPT# If the number of connections on port 80 is greater than 10 at the same time, Drop

The following methods to prevent CC attacks are mainly used to filter access logs and seal the IP address into the firewall. Place the script in cron once every 10 minutes. You can also modify the script as needed, because I use lighttp as a web server, it reads lighttp access logs. This script is also applicable to apache servers:#! /Bin/bash/Www/MTCC/solution_ip.sh/Usr/bin/tail-1000/var/log/lighttpd/access. log | grep-v 127.0.0.1 | awk {print $1} |

Tags: blog HTTP Io AR for strong file SP Div I recently learned about the crystal report and found the following error after compilation: Failed to Load file or assembly "file: // C: \ Program Files \ sap businessobjects \ Crystal Reports. net Framework 4.0 \ common \ sap businessobjects Enterprise XI 4.0 \ win32_x86 \ dotnet1 \ crdb_adoplus.dll "or one of its dependencies. The system cannot find the specified file. Failed to Load file or assembly "file: // C: \ Program Files \ sap business

The experiences of these days are merged into code. Python, edited by me. #! /Usr/bin/ENV Python #-*-coding: UTF-8-*-import OS, sys, timeimport commands, logging # The following is the action for manual commands # Time Format 17/OCT/2014: 10: 00: 00 # Time Format sat Oct 18 12:35:43 2014 # awk '$4> "[17/OCT/2014: 14: 00: 00 " $4 BASH Shell, written by O M engineers, saves a lot of trouble. Take a good look at the shell script. #!/bin/bash#while true#do tail -f XXX.log > url.txt

User's meaningless frequent jump, request will add a lot of burden to the server in fact, cookies can prevent this.PHP implementation prevents user CC attacks/frequent refreshes

Simple countdown jump code (from: sysoft. CC)

VaR type inference keyword. It can automatically infer the type of the variable after the value assignment, but can only be used for local variables. It cannot be used for class member definitions and parameter passing.An anonymous class, that is, a class cannot be defined, which is automatically generated by the system. The following Code creates an anonymous real-column SSZ, and the system automatically defines the name, age, height, job and other field members. This definition is similar to t

tag: OS uses AR SP Div on code ad line Namespace Lamda {Public Delegate int getnum (int A, int B); // defines the delegate with return values and parameters. Class program {static void main (string [] ARGs) {getnum = delegate (int A, int B) {return a + B ;}; // directly create an anonymous function and run it. Getnum (12, 22); console. writeline (getnum (12, 22 ). tostring (); getnum ladt = (int A, int B) =>{ return a * B ;}; // The lamada method is basically the same as the preceding method. Yo

(byte [] bytes){Stream stream = new memorystream (bytes );Return stream;}Iv. Conversion between streams and filesWrite stream to filePublic void streamtofile (Stream stream, string filename){// Convert stream to byte []Byte [] bytes = new byte [stream. Length];Stream. Read (bytes, 0, bytes. Length );// Set the current stream position to the beginning of the streamStream. Seek (0, seekorigin. Begin );// Write byte [] to a fileFilestream FS = new filestream (filename, filemode. Create );Binarywri