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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11327

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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Cross-platform layout: optimize the adaptability of web pages on various devices

Course Introduction：Responsive layout: The advantages of adapting web pages to different devices require specific code examples. With the popularity of mobile devices, more and more people are beginning to use mobile phones and tablets to browse web content. In order to provide a better user experience, web designers use responsive layout technology to ensure the adaptability of web pages on different devices. Responsive layout can automatically adjust the layout and content of a web page according to the device's screen size and resolution by using technologies such as CSS media queries and the flexbox model. The advantages of responsive layout are not only reflected in adapting to different designs

2024-01-05 comment 0 1036

Understand the classification and characteristics of Linux systems

Course Introduction：Classification and characteristics of Linux systems In the field of computer science, the Linux operating system is widely used in various devices and scenarios, and its open source characteristics make it very popular. This article will introduce the classification and characteristics of Linux systems, and explain them with specific code examples. 1. Classification of Linux systems Linux systems can be divided into many different classifications according to their uses and functions, mainly including the following: Server version Linux: used to build network servers, website services and other scenarios, such as UbuntuSe

2024-03-18 comment 0 661

Keychron launches B1 Pro wireless keyboard: weighs 425g / focuses on thinness and lightness, supports three device connections

Course Introduction：This website reported on July 4 that Keychron today released its new wireless keyboard product B1Pro, which features "thin and light" features. It supports three-mode connections, is equipped with a self-developed web driver, weighs 425g, and supports three device connections in Bluetooth mode. This keyboard will be launched on the e-commerce platform for the first time at 20:00 today. This site will update the price and other information in this article at that time. The keyboard supports self-developed web page drivers, supports one-stop web usage services, can be used on Mac/Win/Linux multiple systems, and supports real-time online firmware upgrades (the keyboard needs to be connected to the computer in wired mode). The thickness of the body including the height of the keycaps is about 5.2mm. It adopts a 75% layout and weighs about 425g. It supports 2.4G, Bluetooth 5.2, Type

2024-07-11 comment 0 1211

volumeshader_bm test entrance 2024

Course Introduction：volumeshader_bm is used to test the performance of Android phones, iPhones, computers, tablets and other devices. The more powerful your device is, the smoother the model on the web page will be, and you can also drag the rotating sphere. Many friends want to know where is the volumeshader_bm test entrance? Today I bring you the volumeshader_bm test. Click to enter -volumeshader_bm test entrance 2024 to share. Let’s take a look! volumeshader_bm test entrance 20241, entrance link: https://cznull.github.io/vsbm2, click to enter: volumeshader_

2024-02-20 comment 0 2423

What to do if win10 cannot download steam

Course Introduction：Steam is a very popular game platform with many high-quality games, but some win10 users report that they cannot download steam. What is going on? It is very likely that the user's IPv4 server address is not set properly. To solve this problem, you can try to install Steam in compatibility mode, and then manually modify the DNS server to 114.114.114.114, and you should be able to download it later. What to do if Win10 cannot download Steam: Under Win10, you can try to install it in compatibility mode. After updating, you must turn off compatibility mode, otherwise the web page will not load. Click the properties of the program installation to run the program in compatibility mode. Restart to increase memory, power

2023-07-07 comment 0 2478

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