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Self-study IT network Linux load balancing video tutorial

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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.

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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.

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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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Detailed steps for batch importing vector material images into PPT

Course Introduction：1. Search for vector icons, as long as they are in ai or eps format. 2. Open ai, double-click the blank space to import the material. 3. Select a material. As can be seen from the picture, each character is grouped together. We choose to right-click to cancel the grouping. 4. After canceling the grouping, select a small icon individually and copy it with ctrl+c. 5. We go to the PPT interface, press ctrl+alt+v to paste selectively, and select the enhanced metafile. Paste the image below. 6. It’s not over yet. The image is not editable. We right-click and select Group-Ungroup. In the pop-up window, we select Yes. 7. Open the selection pane, and you can see that the graphic is composed of multiple small vector graphics. 8. At this time, you can modify the graphic, such as changing the clothes to yellow.

2024-03-26 comment 0 808

How to fill black and white areas in Ae How to fill black and white areas in Ae

Course Introduction：1. First, in Ae, select the video material you want to edit and find the background position of the black and white edges in the video. 2. Then, right-click the video layer option and select Effect, Stylization, and Dynamic Collage options in the drop-down menu. 3. Next, after opening the dynamic collage interface, click and check the Mirror Edge button. 4. Drag the mouse to move the timeline pointer to the largest blank area. 5. Best, adjust the output height to achieve the effect of filling and covering.

2024-05-09 comment 0 1130

Colorful Hidden Star P15 2024 Game Book Picture Appreciation: The appearance of the skin has greatly improved, and the contrast between black and white is a classic

Course Introduction：Recently, this website got a gaming notebook that is famous for its cost-effectiveness - Colorful Hidden Star P152024. As a representative player of high cost-effectiveness, the appearance of this new model has changed a lot, so next I will bring you its unboxing Picture appreciation. The packaging box of Hidden Star P15 adopts a pure black design, and the whole is decorated with a large number of planetary elements in the universe. There is a silver-white product name printed in the middle, and there is a white COLORFUL brand logo in the upper left corner, which seems to have a certain sense of design. , and conveys a mysterious and science fiction style. The Colorful Hidden Star P15 2024 model has changed from the extremely flamboyant design and bold color matching of the previous generation to pure black and black and white. The one we got is the black and white model, which is officially called Wuyu White. Side A Overall it's a bit warmer

2024-04-01 comment 0 561

Zero hundred and 4.9 seconds! BYD's new beast Equation Leopard 3 official photos released, black, white, green three colors for you to choose

Course Introduction：Formula Leopard Motors, a subsidiary of BYD, today released official pictures of the new model "Leopard 3", marking the official entry into mass production of the previously unveiled concept car "SUPER3". The promotional slogan of Leopard Motors is quite mysterious and trendy: "The disguise of the three interstellar tanks has been lifted. The real status of the vehicles is changeable, and fancy and trendy fun can be unlocked." Fang Leopard Automobile showed three colors of "Leopard 3" this time, namely green (similar to olive green), white and black. Judging from the appearance design, the new car has resolute lines and compact shape, showing a strong tough style and clearly positioned in the compact SUV market. What is striking is that the new car provides two personalized "small school bag" options of external spare tire or storage box. At the same time, models with different color schemes also have their own unique style elements in the front face design. according to

2024-06-14 comment 0 911

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