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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 17606

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 11315

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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SAIC MG released photos of the interior of its first open-top electric sports car, the MG Cyberster, with luxurious configurations exposed!

Course Introduction：According to news on July 11, SAIC MG recently released interior photos of its first convertible electric sports car, the MGC Cyberster, showing the car’s unique design and luxurious configurations. As can be seen from the interior photos released this time, the interior of the MGC Cyberster will adopt a burgundy color scheme to create a high-end feel. The car will have an enveloping cockpit equipped with a driver-centered curved screen and a flat-bottom steering wheel. The steering wheel is hand-stitched with NAPPA chrome-free leather to provide the driver with a comfortable touch. According to the editor's understanding, the central control panel of the MGC Cyberster will be made of broken carbon fiber, showing a sense of technology and a sporty atmosphere. The vehicle is equipped with Y-shaped sports seats, which have been developed according to ergonomics and sports car standards.

2023-07-13 comment 0 856

Powerful! Maserati's new GranCabrio roadster released on February 29

Course Introduction：Luxury car brand Maserati recently revealed that the much-anticipated new GranCabrio convertible will be officially unveiled on February 29. This model will be released as early as 2022. The new car released this time will incorporate the latest family design elements, and the interior and configuration are also expected to undergo significant upgrades. According to photos exposed by foreign media Carscoops, the new GranCabrio convertible sports car adopts an exquisite soft-top design, the body lines are smooth and dynamic, and the wide front and rear fenders highlight its unique temperament. The exterior design of this new car will undoubtedly attract the attention of many car fans. According to the editor's understanding, the new GranCabrio convertible sports car is not inferior in terms of interior technology configuration. The new car is expected to be equipped with a 12.2-inch LCD

2024-02-24 comment 0 507

Audi e-tron GT Launch Edition: the perfect combination of luxury and environmental protection

Course Introduction：According to news on July 5, Audi recently announced the opening of pre-sales for the Audi e-tron GT Launch Edition (first edition). It is reported that this new luxury electric car will be sold in a limited edition of 20 units nationwide in 2023, with a pre-sale price of 1.0998 million yuan. The Audi e-tron GT Launch Edition attracts people's attention with its unique appearance design. The body provides a customized Cumulus Blue exclusive color, making it highly recognizable. At the same time, the car uses a large number of black design elements, including Audi's extended black appearance package, black exterior mirror housings and the same color grille as the body, which further enhances the sporty feel of the vehicle. The side of the body shows the unique posture of a GT sports car, with frameless doors and a sci-fi-looking

2023-07-12 comment 0 1276

BAC debuts at Monterey Car Week: launches new Mono single-seat sports car

Course Introduction：The news on August 21 was that at the Monterey Car Week in the United States, the British supercar brand BAC (Briggs Automotive Company) grandly launched a new and upgraded version of the Mono single-seat sports car. It is understood that this car has made many improvements and optimizations while retaining classic elements. The appearance of the new Mono has been redesigned, and the overall style is smoother and more similar to the MonoR model. In particular, the front line is more streamlined and the carbon fiber The aerodynamic optimization of the air intake provides better heat dissipation performance. In terms of body material, the application of graphene-reinforced carbon fiber and a new generation of steel structure frame chassis makes the new Mono weigh only 570kg, providing a solid foundation for vehicle performance. In terms of chassis suspension

2023-08-28 comment 0 682

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