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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11279

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 17603

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 11314

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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Great Wall Motors' new flagship brand ZX revealed, the first model is 5.5 meters long and may cost over one million

Course Introduction：Great Wall Motors has recently focused on the high-end new energy market and plans to launch a new brand ZX and launch a D+-class high-end new energy sedan. According to sources, the car is expected to be about 5,500mm long, making it one of the best in its class. This new model will not go through Great Wall Motor's existing sales channels, which adds a touch of mystery to the brand. At the same time, a rendering circulated on the Internet has made car fans full of expectations for this car. The renderings show that the car has a wide front design, smooth and slender lines, and is equipped with huge wheels and chrome decorations on the sides, showing an extraordinary momentum. In addition, the L-shaped decoration on the fenders and doors adds to the dynamic look of the vehicle. The length of this car reaches 5.5 meters, which is almost the same as the Rolls-Royce Ghost (5546mm), and even

2024-02-02 comment 0 734

Toyota borrows Tesla strategy, opens Lexus charging stations to other electric vehicles

Course Introduction：According to news on June 25, although Toyota is slightly behind in entering the pure electric vehicle market, the industry giant seems to be learning from the leading brand Tesla. Recently, Toyota announced a major decision: charging stations for its luxury brand Lexus will be open to all electric vehicles in Japan. This strategy clearly imitates Tesla's global operating model. Looking back at the past, Lexus’s layout in the field of electrification has long been on the agenda. In June 2023, Hibiya in Tokyo Midtown welcomed Lexus's first "fast charging station", marking the official launch of Lexus's electrification plan. In December of the same year, the second charging station at Karuizawa Common Grounds was also put into operation. These charging stations are equipped with power up to

2024-06-25 comment 0 478

NIO's new EC6 debuts online, opening a new era of electric coupe SUVs

Course Introduction：According to news on September 11, NIO will soon bring the long-awaited new smart electric coupe SUV-EC6. Different from the past, NIO did not announce a formal press conference this time, but chose to make its debut online, and it is scheduled to be officially unveiled at 20:00 on September 15. The new generation of NIO EC6 continues its unique design style as a coupe SUV, with a silhouette that resembles an exquisite coupe. Its fastback shape highlights dynamics and elegance, adding a touch of color to urban roads. The design of the rear of the car has also been carefully crafted. The adoption of a new family-style design language allows the taillights to run through the entire rear of the car, making the rear visual effect more spacious and atmospheric. In addition, the new EC6 also adds a liftable tail design and adopts a five-spoke

2023-09-15 comment 0 1299

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 1175

php-insertion sort

Course Introduction：:This article mainly introduces php-insertion sort. Students who are interested in PHP tutorials can refer to it.

2016-08-08 comment 0 1031

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