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Self-study IT network Linux load balancing video tutorial

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Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

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Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

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Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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python - How to call up the modal box through buttons on the django list page

As shown in the picture above, I want to call up a modal box through a button on the Django list page to perform confirmation and cancellation operations. I don’t know how to operate the template. The template of the list page is provided in the Django source code. If it is an ordinary template file, the modal box code can be written into the current template file, but the source code...

2017-05-19 10:06:50

php array rotation

Of these two integer arrays, how do I determine if the second array is a rotated version of the first array and which php function is required? Example: Original array A=[1,2,3,4,5,6,7,8] Rotated array B=[6,7,8,1,2,3,4,5] In this example, the array All numbers of A are rotated 5 places to the right.

2023-09-03 14:08:19

When loading a Python module written in C language, it prompts that the function in .so is not found?

I try to write a Python module in C language, but my C program itself depends on a third-party library (libwiringPi.so). When I import the library I generated in the Python source program, I will be prompted that the function is undefined. , these functions are all in that third-party library, how should I program...

2017-05-18 11:00:29

javascript - this pointing problem in js extended prototype method

There is an example of the Prototype library and function bind code in the book JavaScript Ninja Secrets: {Code...} I used breakpoints to check that the fn in the function bind points to the function myFunction. I don’t quite understand this. My understanding is that as long as Function is used .prototype The methods of this prototype extension...

2017-05-19 10:36:17

Parsing and dealing with the eval function in PHP

Disclaimer: This is just an example for learning PHP code injection, not production code to be used in any way. I'm fully aware that this is not good coding practice. I have the following PHP script: Example Script Example Page Now does math calculations. Please enter a formula to calculate. For example: 1+1. Formula: This script is vulnerable to PHP code injection, I was able to break it by doing the following (mostly found out by trial and error): $a='1');phpinfo();echo($a However, I I don't fully understand the principle. As far as I understand,

2023-08-13 17:40:10

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I have been using Git@OSC code hosting recently, and I would like to share a method written in PHP to obtain the git warehouse information.

Course Introduction：This class can retrieve information from a Git repository. It uses a Git client program to query the library to obtain certain types of statistics. Currently, it can get all commits for a given branch, get the hash of the latest commit, the number of commits for a given branch and get the version for a given branch. PHP source code and demonstration: source code source demonstration source ?phprequi

2016-08-04 comment 0 3160

How to Send a Raw POST Request with cURL in PHP?

Course Introduction：How to Send a Raw POST Request Using cURL in PHPIn PHP, cURL is a popular library for sending HTTP requests. This article will demonstrate how to...

2024-11-28 comment 0 904

Linux kernel source code storage path analysis

Course Introduction：The Linux kernel is an open source operating system kernel whose source code is stored in a dedicated code repository. In this article, we will analyze the storage path of the Linux kernel source code in detail, and use specific code examples to help readers better understand. 1. Linux kernel source code storage path The Linux kernel source code is stored in a Git repository called linux, which is hosted at [https://github.com/torvalds/linux](http

2024-03-14 comment 0 1018

Source code compilation and installation of PHP PDO MySQL: detailed step analysis

Course Introduction：Source code compilation and installation of PHPPDOMySQL: Detailed step analysis In the process of building a web server, PHP and MySQL are two indispensable and important components. PHP's PDO extension (PHPDataObjects) provides a flexible and efficient way to access databases in PHP. In this article, we will introduce in detail how to compile and install PHP using source code, enable PDO extension, and connect to MySQL database. The following are specific steps and code examples: 1.

2024-03-07 comment 0 971

What is database three paradigms?

Course Introduction：Understanding the three paradigms of database First Normal Form (1NF): The so-called First Normal Form (1NF) means that each column of the database table is an indivisible basic data item. There cannot be multiple values in the same column, that is, there cannot be multiple values for a certain attribute in the entity. Values or attributes cannot have duplicates. In any relational database, the first normal form (1NF) is the basic requirement for the relational model. A database that does not meet the first normal form (1NF) is not a relational database. Understanding Note: Columns are inseparable, or understood as atomicity. Second Normal Form (2NF): Before understanding Second Normal Form (2NF), first understand what

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