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Self-study IT network Linux load balancing video tutorial

Course Intermediate 10976

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

Course Advanced 17039

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

Course Advanced 10737

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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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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Understand the role of Linux ldconfig

Course Introduction：The role of Linuxldconfig and code examples In Linux systems, the dynamic link library (DynamicLinkLibrary, referred to as dynamic library) is a shared, reusable library file that can be loaded and called by the application at runtime. In order to enable the system to correctly find and load these dynamic libraries, Linux provides the ldconfig tool to manage dynamic link library files in the system. ldconfig is used to update dynamic links in Linux systems

2024-03-14 comment 0 1084

How to use assemblies and DLL files in C# to solve code modularization problems and solutions

Course Introduction：How to use assemblies and DLL files in C# to solve code modularization problems and solutions. In C# development, code modularization is very important. It can divide the code into smaller reusable modules and improve the readability and maintenance of the code. sex. In order to achieve code modularization, C# provides the concepts of assembly and DLL files. An assembly is a collection of related code files that can contain information such as multiple modules, classes, interfaces, and resource files. DLL (DynamicLinkLibrary) file is a dynamic

2023-10-08 comment 0 1509

Golang dynamic library exploration: how to effectively use it in projects?

Course Introduction：Golang dynamic library exploration: how to effectively use it in projects? In the Go language, a dynamic library (DynamicLinkLibrary, DLL for short) is a library file that can be linked to a program at runtime and called at runtime. By using dynamic libraries, we can package some commonly used functions for reuse in different projects, thereby improving code reusability and maintainability. In this article, we will explore how to effectively utilize dynamic libraries in Go projects, and through specific code

2024-02-29 comment 0 496

Common configuration techniques for implementing dynamic link libraries under Linux

Course Introduction：Common configuration techniques for implementing dynamic link libraries under Linux A dynamic link library (DynamicLinkLibrary, DLL for short) is a code and resource library that can be shared between multiple programs. In the Linux system, the dynamic link library is called a shared library (SharedLibrary). By separating the code and resources from the program, the reusability of the code and the running efficiency of the program can be improved. This article will introduce common configuration techniques for implementing dynamic link libraries under Linux and give the corresponding codes.

2023-07-04 comment 0 2330

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