Programming VIP

Algorithm Introduction The core of hill sorting lies in the setting of interval sequence. The interval sequence can be set in advance or defined dynamically. The algorithm of defining interval sequence dynamically is proposed by Robert Sedgewick, coauthor of algorithm (4th Edition). Algorithm description and Implementation ...

Preface Text and pictures of the text come from the network for learning and communication purposes only. They do not have any commercial use. Copyright is owned by the original author. If you have any questions, please contact us in time for processing. Author: Star Ango, AirPython Target Scene I believe that when you brush short video with sh ...

Preface The previous analysis is the main program, the following analysis of the load, lpk.dll will be propagated to each folder containing exe Overview BOOL __stdcall DllEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved) { BOOL result; // eax@9 if ( fdwReason == 1 ) { hModule = hinstDLL; Get ...

Recently, Andrew Danau, a foreign security researcher, stumbled upon a bug in the processing of a specific request by the php-fpm component during the flag race (CTF: Capture the Flag): a particular constructed request could cause a php-fpm processing exception under a specific Nginx configuration, resulting in remote execution of arbitrar ...

GhostScript sandbox bypass (command execution) vulnerability (CVE-2019-6116) Official reproduction of Vulnhub Loophole principle Replication vulnerability Boot environment Loophole reappearance POC Upload POC file Test success Official reproduction of Vulnhub https://vulhub.org/#/env ...

1. Script example of recursively listing files in directoryTo list the files in the directory, you can do the following: os.listdir() In [1]: import os In [4]: os.listdir('/root') Out[4]: ['.tcshrc', '.bash_history', '.bashrc', 'ENV', '.cache', '.config', '.cshrc', '.bash_logout', 'python', '.ssh', 'shell', '.bash_profile', '.ip ...

How is a user created? /etc/passwd user account information /etc/shadow security user account information /etc/group group account information /etc/gshadow security group account information /The default value when the etc/default/useradd account is created. (the default value in this file will be used when no parameter is specified) [r ...

Sometimes you need to deploy multiple Tomcat on a server, and distinguish them through different ports, such as reverse proxy. But I don't want to simply copy tomcat, which is not convenient for future upgrade or management. At this time, I need to configure a single machine with multiple instances of ...

Socket socket (module): responsible for receiving data from the transport layer, processing it, and handing it to the operating system from the bottom layer. Effect To avoid the use of interfaces and protocols in each layer of computer learning, socket has encapsulated all interfaces, which is convenient to use and improves development effi ...

Pay attention to Uzero public number, more front-end small dry goods are waiting for you! Preface Seeing the title, you can remember that this requirement can be used in many projects. The front-end applications we deploy on the Web server can be accessed by either PC browser or mobile browser. With the promotion of smart devices, we can even a ...