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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11366

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 17666

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 11381

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 PHP to implement the page template function of CMS system

Course Introduction：How to use PHP to implement the page template function of a CMS system. With the development of the Internet, content management systems (CMS) play an important role in website development. The CMS system separates the page content from the design style through the template function, making it convenient for website administrators to manage and modify the page. This article will introduce how to use PHP to implement the page template function of the CMS system and provide corresponding code examples. 1. Create a file structure First, we need to create a basic file structure to store the page templates and related files of the CMS system.

2023-08-04 comment 0 823

The trend-setting F5 full-tower case is equipped with AN140 ARGB static pressure fans and supports back-mounted motherboards

Course Introduction：According to news from this website on January 21, Yingguang has launched a new upright full-tower chassis F5, which adopts a quick-detachable front panel design and comes standard with three latest NeptuneAN140 static pressure fans. It supports multiple cooling modes and supports graphics cards. Vertical mounting and back-mounting motherboards. The Yingguang F5 was first exposed at the Taipei Computex 2023. It adopts a quick-detachable front panel design, and users can adjust the configuration according to their preferences. As shown in the picture, the black version provides Morandi-colored glass and black dust-proof net, while the white version uses natural maple panels with white dust-proof net; the side panels use 3mm tempered glass, and both sides adopt screw-free quick-release design . This case provides spacious internal space and supports E-ATX, ATX, Micro-ATX, and Mini-ITX motherboards

2024-01-22 comment 0 568

iReader Color7 color screen e-paper book is on the shelves tonight: 7 inches / 4096 colors, special price of 1659 yuan for the first time

Course Introduction：According to news from this website on December 27, iReaderColor7 color screen electronic paper book will go on sale at 8 o'clock tonight. It is 7 inches in size, has a black and white pixel density of 300PPI, and a color pixel density of 150PPI. The initial price is 1,659 yuan. This site organizes the parameters of iReaderColor7 color screen electronic paper book as follows: This electronic paper book uses a 7-inch EinkKaleido3 panel, with a black and white pixel density of 300PPI and a color pixel density of 150PPI. Officials say that the panel supports 4096 colors, with color brightness increased by 30%. With the help of PalmReader’s self-developed color engine, color contrast is increased by 40%, and supports two color display modes: Morandi mode and vivid mode. In terms of configuration, iReaderColor7 is equipped with

2024-01-05 comment 0 703

Official renderings of Honor MagicPad 2 tablet released: magnetic stylus, half-packed keyboard case

Course Introduction：This website reported on July 4 that the Honor 12.3-inch MagicPad 2 tablet will be unveiled at the flagship new product launch event on July 12 this year. The appearance of the tablet has been announced and comes in three colors: Sky Blue, Moon Shadow White, and Starry Black. This website noticed that the official rendering shows a magnetic stylus and a half-pack keyboard case accessories, and both accessories appear in two colors. The stylus Magic-Pencil 3 currently sold by Honor is available in deep space gray color. The white stylus appearing in the rendering is expected to be a new product in the Magic-Pencil series or a new color for Magic-Pencil 3. In addition, the keyboard protective case in the Honor MagicPad 2 tablet rendering is black, and the official preheating poster earlier today showed a white one.

2024-07-11 comment 0 449

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