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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11215

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 17559

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 11269

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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VGN A75 gaming magnetic keyboard is on sale for the first time today: single-mode wired connection, 0.1~4.0mm adjustable travel, starting from 189 yuan

Course Introduction：According to news from this site on June 18, the VGNA75 gaming magnetic keyboard is on sale today. The keyboard adopts GAS structure, supports web drive/independent drive, and is available in five colors. The initial price starts at 189 yuan. According to reports, the VGNA75 gaming magnetic axis keyboard adopts a 75 configuration and is available in five colors: classic white, classic black, rose red gradient, blue gradient and gray gradient, and supports single-mode wired connections. The selling price information is as follows: Classic White 189 Yuan Classic Black 189 Yuan Rose Red Gradient Side Engraving 249 Yuan Blue Gradient Side Engraving 249 Yuan Gray Gradient Side Engraving 249 Yuan This keyboard is equipped with a metal knob that supports volume adjustment and is suitable for office and gaming scenarios. Use; adopts GAS structure, equipped with silencer filling, PC/steel positioning plate, which can reduce resonance and take into account the precision of magnetic axis buttons.

2024-06-19 comment 0 1259

javascript - What methods are generally used to develop websites now? What is front-end and back-end separation?

Course Introduction：Because I have always been self-taught, I don’t know very well how big companies write websites. In the past, many websites were written by embedding jsp or php code into html. I have also used the node+jade method before, but now the interface is provided in the background, and then the ajax submission is used to obtain the data in the backbone template...

2016-08-04 comment 0 1422

Sweden commissions world's tallest wooden wind turbine

Course Introduction：According to news from this website on December 29, Swedish startup Modvion announced that it has built the world’s tallest wooden wind turbine tower, which is currently providing power to 400 households in Sweden. ▲Image source: Modvion official website, same as below. Located on the outskirts of Skara, northeast of Gothenburg, Sweden, this wooden wind turbine has a power of 2 megawatts (MW) and was built for the Varberg Energi power company. It recently started supplying electricity to the Swedish grid. According to reports, this wooden wind turbine tower is 105 meters high. If you include the height of the blades, it can reach 150 meters. The turbine tower is constructed from 144 layers of laminated veneer lumber, each layer composed of 3 mm thick spruce. The tower consists of 7 sections, consisting of 28 stacked modules with steel fittings.

2024-01-08 comment 0 968

Revealing Changan Qiyuan Q05 unveiled! First plug-in hybrid compact SUV configuration

Course Introduction：According to news on November 10, Changan Qiyuan is about to launch its first plug-in hybrid compact SUV, Changan Qiyuan Q05. The car will be pre-sold on November 11, and the model configuration has been announced on the official website. This plug-in hybrid model is positioned as a compact SUV with a body size of 4539*1865*1680mm and a wheelbase of 2656mm. It adopts a 5-door and 5-seat layout and is available in Moonlight White, Shadow Gray, Dynamic Red, and Star Diamond Black. , atomic gray, star blue and other color options. In terms of chassis, the vehicle adopts front MacPherson independent suspension/rear multi-link independent suspension, which supports sports, energy-saving, comfortable and personalized driving modes. According to my understanding, this new car is equipped with a 10.25-inch full LCD instrument panel and a 12.3-inch LCD instrument panel in the interior.

2023-11-10 comment 0 1005

Apple mac film Japanese Sumitomo film (macbook film recommended)

Course Introduction：Introduction: This article is here to introduce you to the relevant content about Apple Mac film and Japanese Sumitomo film. I hope it will be helpful to you, let’s take a look. Regarding the issue with Apple notebook film, yes, Apple notebook case film may discolor due to time and oxidation. According to the query 520 Common Sense Network, Apple notebooks are a popular computer brand known for their unique designs, high-end configurations and excellent performance. Apple notebook covers can be protected with film to prevent secondary injuries, scratches, fingerprints and dust. Apple Computer was founded on April 1, 1976 by Jobs, Wozniak and Wayn. Avoid using screen protectors and keyboard covers because they may affect the display and user experience of Apple devices. Screen film may degrade

2024-02-15 comment 0 914

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