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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11325

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 17632

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 11338

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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Should I learn web front-end for the front end?

Course Introduction：In today's digital age, web front-end has become an increasingly popular career field. The Web front-end is an important part of website development and design. Its role is not only to make the website beautiful and easy to use, but also to improve the user experience and search engine rankings. So, as a novice, is the front-end feasible? Is it worth learning? First, we need to understand what a front-end is. Web front-end is a development technology that uses HTML, CSS, and JavaScript languages to enable websites to adapt to different screen sizes and browsers, and provide responsiveness

2023-04-19 comment 0 391

Course Introduction：In order to keep up with the trend, this article will introduce to you the basic process and main technical points in live video broadcasting, including but not limited to front-end technology. 1 Can H5 do live video broadcast? Of course, H5 has been popular for so long and covers all aspects of technology. For video recording, you can use the powerful webRTC (Web Real-Time Communication), which is a technology that supports web browsers for real-time voice conversations or video conversations. The disadvantage is that it is only well supported on PC Chrome, and mobile support is not ideal. . For...

2017-06-15 comment 0 1755

React Mobile Adaptation Guide: How to optimize the display effect of front-end applications on different screens

Course Introduction：React Mobile Adaptation Guide: How to optimize the display effect of front-end applications on different screens. In recent years, with the rapid development of the mobile Internet, more and more users are accustomed to using mobile phones to browse websites and use various applications. However, the sizes and resolutions of different mobile phone screens vary widely, which brings certain challenges to front-end development. In order for the website and application to have good display effects on different screens, we need to adapt to the mobile terminal and optimize the front-end code accordingly. Using Responsive Layout Responsive layout is a

2023-09-29 comment 0 1715

Importance and Advantages: The Value of Responsive Design

Course Introduction：The Importance and Advantages of Responsive Layout With the popularity of mobile devices and the rapid development of the Internet, more and more users visiting websites use mobile devices, such as smartphones and tablets. Therefore, it becomes crucial to develop a website that adapts to different screen sizes. In this context, responsive layout came into being. Responsive layout is a web design and development technology that automatically adjusts and adapts to the screen size and resolution of the user's device. It uses front-end development technologies such as HTML, CSS and JavaScript, making

2024-02-24 comment 0 1346

The difference between game front-end and web front-end

Course Introduction：With the continuous development of computers and the Internet, the software development industry has also ushered in a boom. Among them, game front-end and Web front-end are two relatively popular areas. However, although they both belong to the field of front-end development, there are still considerable differences between them. This article will conduct a comparative analysis of the game front-end and the Web front-end in terms of technology, development process, and responsibilities. 1. Technical differences 1.1 Different rendering methods The game front-end needs to render the game screen in real time, and the screen is required to be smooth, so it requires a higher frame rate and rendering speed. Game front end

2023-05-25 comment 0 1009

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