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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17643

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 11353

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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What should I do if there is no option to log in to a Microsoft account in Windows 10?

Course Introduction：When users start the computer operating system, they will find that the login interface does not display any login options. Faced with this situation, how should we solve it? Today, the editor will bring you a solution to the problem that there is no option to log in to a Microsoft account. What should I do if there is no option to log in to a Microsoft account in Windows 10? 1. First, you need to select "Safe Mode" from the system startup menu and log in successfully. During this process, you need to enter your normal login password to verify your identity. 2. Subsequently, after successfully entering the system environment in safe mode, right-click the "This PC" icon and select the "Manage" option. 3. In the directory tree on the left of the opened "Computer Management" page, expand down to "Services and Applications", and then click the "Services" option. In the right column of the service interface, users can

2024-02-07 comment 0 1090

What role does vue play in front-end development?

Course Introduction：Vue.js is a progressive JavaScript framework mainly used to simplify the front-end development process. Its functions include: declarative template syntax to improve readability; responsive data binding to automatically synchronize interface and data; component development to improve maintainability; state management (Vuex) to simplify state management; routing (Vue Router) , manage single-page applications; enrich tools and ecosystem to accelerate development.

2024-04-06 comment 0 1245

What framework is layui?

Course Introduction：layui is a medium and large web interface solution for rapid development of web applications and websites. It adopts modular design, supports responsive layout, and provides rich UI components. It is widely used in backend management systems, website construction, and mobile terminals. Development and API development and other scenarios, the advantages include high development efficiency, performance optimization and simple maintenance.

2024-04-04 comment 0 656

How to operate Lumion rendering material channel map

Course Introduction：Here is a material channel map, which is very helpful for later adjustments and modifications in Photoshop. Generally, a material channel map will be rendered first in the later stages of renderings. It's very convenient to select objects in this way, so you don't have to select them one by one. Open Lumion and the scene file you want to render. Here is a simple scene to demonstrate. The method is the same. Click the animation mode on the right. There is no channel map when rendering in the photo mode, so after you usually use the photo mode, use the animation mode. The effects and styles are the same here. Turn on animation mode and click record. Enter the recording interface. After we select the angle, we need to confirm or click the photo button below. To confirm this, we need one more step, which is after taking the photo.

2024-06-06 comment 0 406

How to click href link from Bootstrap tab using Python?

Course Introduction：Bootstrap is a popular HTML, CSS, and JavaScript framework that helps us develop responsive, mobile-first front-end web applications. It provides design templates for forms, typography, navigation, buttons and other interface components. Python is the best language for manipulating web content. Selenium Library If we need to click on a link using Python programming, we should use selenium library. It is the most popular open source automated testing tool that allows us to automate web browsers. Selenium is primarily used for automated testing purposes of web applications, but is also used for other purposes such as automating repetitive tasks and web scraping. It supports Python, Java, C and Rub

2023-09-01 comment 0 1470

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