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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.

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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.

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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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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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How to use Vue and Element-UI to implement progress bar and loading animation effects

Course Introduction：How to use Vue and Element-UI to implement progress bar and loading animation effects. Vue.js is a lightweight front-end framework, and Element-UI is a UI component library based on Vue.js, which provides a rich set of components and interactions. The effect can help us quickly develop a beautiful front-end interface. This article will introduce how to use Vue and Element-UI to implement progress bar and loading animation effects. 1. Install and introduce Element-UI first,

2023-07-21 comment 0 5328

HTML, CSS, and jQuery: Build a beautiful card stacking effect

Course Introduction：HTML, CSS and jQuery: Build a beautiful card stacking effect In website design, how to create attractive special effects is a key issue. This article will introduce how to use HTML, CSS and jQuery to build a beautiful card stacking effect to make your website more vivid and interesting. First, let’s take a look at the final result: [Image example] Before we start, we need to define our goals. The card stacking effect we hope to achieve has the following characteristics: cards are stacked together to form a cascading effect.

2023-10-26 comment 0 1263

New features for vivo mobile phones are online! Multiple models support Xiaohongshu Live picture publishing

Course Introduction：According to news on September 1, today vivo officially announced a new feature of vivo mobile phones. Multiple models will support the posting of live pictures to Xiaohongshu to share fresh moments. Live picture: Dynamic photo definition: Live picture is a "dynamic photo" similar to a GIF animation, which can convert photos into dynamic pictures. Vivo mobile phone operation: Turn on the camera Live picture mode. Take dynamic photos. Album editing: adjust the number of loops and playback speed. Add filters and effects. Xiaohongshu Sharing: Directly upload and publish Live pictures taken with vivo mobile phones. User feedback: vivo mobile phones have powerful camera functions. vivo meets user needs. According to Fenye, the current mobile phone models that support Xiaohongshu Live picture release include vivoX100

2024-09-02 comment 0 644

Ideal for gaming and creativity: VX2776-2K-PRO-3-W monitor coming soon

Course Introduction：According to news on September 6, ViewSonic recently released the new VX2776-2K-PRO-3-W monitor. This 27-inch 2K monitor will appear on the market with excellent performance and functions. This monitor uses FastIPS panel technology, has a resolution of 2560×1440, and an amazing 240Hz refresh rate, which will bring users unparalleled visual enjoyment. One of the main highlights of the VX2776-2K-PRO-3-W monitor is its high brightness. According to official data, the display has a brightness of up to 600 nits and supports the HDR600 standard, which means it can present more vivid and realistic colors and provide users with more shocking visual effects. In addition, the display has a wide viewing angle,

2023-09-18 comment 0 560

Where to add picture-in-picture pictures? Tutorial on creating picture-in-picture effect.

Course Introduction：Recommended by many people, this software has a wealth of special effects and stickers that can be added. In addition, it also provides a "picture-in-picture" mode. When many friends use Bi-Cut, although they know that there is such a function, they don't know where and how to add it. So let me explain to you the specific operation method of using BiClip to add picture-in-picture. 1. Open the must-cut software, click [Import Material], and add the material to be processed to the page. 2. Use the mouse to move the imported video material to the [Video Track] below. 3. Then use the mouse button to play it. Pull the border of the video to [zoom out playback] 4. Then find the [Picture] position on the upper left side, then click the [Import Material] button, and select Add in the window that opens to set it as in-picture

2024-02-10 comment 0 1497

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