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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11326

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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What are the new features of css3

Course Introduction：The new features of CSS3 include selectors, box models, colors, backgrounds, borders and shadows, text effects, layout and fluid layout, multi-column layout, animations and transitions, responsive design, etc. Detailed introduction: 1. Selectors, attribute selectors, pseudo-class selectors, pseudo-element selectors and multiple selectors; 2. Box model, the Box-sizing property changes the default CSS box model to make it easier to layout; 3. Color, CSS3 adds support for transparency, use rgba(), hsla() or opacity to set it, etc.

2023-10-27 comment 0 4621

Highlights of Dell P3424WE monitor revealed: multi-function interfaces and multi-tasking are all available

Course Introduction：Dell recently released the P3424WE monitor, which brings a new experience to users. This 34-inch monitor adopts a hairtail screen design with a curvature of 3800R and a resolution of up to 3440x1440, presenting a more delicate image effect. The 60Hz refresh rate, 300 nits brightness and 1000:1 contrast ratio, as well as the wide color gamut covering 99% of the sRGB color range, ensure bright and vivid colors. In addition, the response time is only 5 milliseconds, making the picture smoother and more natural. According to the editor's understanding, the P3424WE display has also been upgraded in terms of connection interface, using a full-featured USB-C interface and supporting power transmission up to 90W. This design can not only transmit power, video and data, but also effectively reduce

2023-08-21 comment 0 834

3440x1440 high resolution, 180Hz high refresh rate! MSI launches MAG 345CQR curved monitor

Course Introduction：According to news on March 29, MSI’s newly released MAG345CQR curved gaming monitor has attracted widespread attention with its large 34-inch screen and excellent performance. This monitor uses VA panel technology and has a resolution of up to 3440x1440, ensuring that users can enjoy clear and delicate picture effects. Its high refresh rate of 180Hz can bring smoother dynamic images, while the curvature of 1000R further enhances the immersive visual experience. The fast 1ms MPRT response time means that even high-speed moving pictures can remain clear and reduce smear. By fine-tuning the color performance, slightly increasing the brightness and color depth, the three-dimensional sense of the picture and image details are improved, ensuring a maximum brightness of 300 nits.

2024-03-30 comment 0 785

Teclast T50 HD tablet computer is now available for NT$799: Zhanrui T606+256GB large capacity

Course Introduction：According to news on May 28, Taipower T50HD tablet computer is now on the shelves, priced at 799 yuan. According to reports, this tablet uses an 11-inch IPS high-definition screen with a resolution of up to 1920x1200 and supports a smooth 60Hz refresh rate. Whether you are watching high-definition movies or browsing pictures, you can enjoy a delicate and realistic visual experience. The screen brightness reaches 400 nits, ensuring a clear display effect in various light environments. At the same time, it also supports "T-Colour3.0 screen display technology" to make colors more full and vivid. It also has TUV low blue light certification to protect your eyesight, so you don't have to worry about eye fatigue when using it for a long time. In terms of performance, Teclast T50HD is equipped with UNISOC T60

2024-06-01 comment 0 1005

How to install win7 operating system on computer

Course Introduction：Among computer operating systems, WIN7 system is a very classic computer operating system, so how to install win7 system? The editor below will introduce in detail how to install the win7 system on your computer. 1. First download the Xiaoyu system and reinstall the system software on your desktop computer. 2. Select the win7 system and click "Install this system". 3. Then start downloading the image of the win7 system. 4. After downloading, deploy the environment, and then click Restart Now after completion. 5. After restarting the computer, the Windows Manager page will appear. We choose the second one. 6. Return to the computer pe interface to continue the installation. 7. After completion, restart the computer. 8. Finally come to the desktop and the system installation is completed. One-click installation of win7 system

2023-07-16 comment 0 1202

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