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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11277

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 11311

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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How to synthesize a frozen city? PS tutorial for synthesizing a frozen city poster

Course Introduction：1. Open a picture of a landmark building in Shanghai. I found this one from alphawallhaven, the picture is quite big. Cut out the building, and then remove the building on the background, leaving only the sky. 2. Drag in the material. This material was found in pexels. This scene seems to be quite famous. Many photos I saw seemed to be taken in this place, but from different angles. Add a mask to hide the top half of the material. 3. Open another material, cut out the long iceberg in the middle and put it into the composite document. 4. The mountain in the material is a little smaller and feels too short. Make a copy and then add a mask. Make the iceberg part taller. 5. Create a layer group for these two iceberg layers, then add a mask to this layer group and brush the city buildings

2024-06-12 comment 0 1091

How to set the city twilight HDR tone effect in PS_Tutorial on setting the city twilight HDR tone effect in PS

Course Introduction：1. First open the PS software on your computer and use the [Ctrl+O] key combination to import picture materials. 2. Then use the [Ctrl+Shift+N] key combination to create a new layer and unlock the background. 3. Click [Image] - [Adjustment] - [HDR Tone] in the top toolbar. 4. In the pop-up window, set the preset to [Urban Twilight] and click OK. 5. Click [File] - [Save As] in the toolbar at the top of the software to start saving. 6. After completion, save the processed image in the required format.

2024-06-04 comment 0 1054

Mobile phone photo graffiti (based on mobile phone photos, use graffiti art to show unlimited creativity)

Course Introduction：The popularity of mobile phone cameras makes it easier for us to record every moment of our lives, making mobile phones a daily necessity. In addition to adding fun and creativity to photos, mobile phones also help us express our emotions and thoughts better, especially by doodling on mobile phone photos. Through doodling, we can create neat and orderly creative fun. This article will explore methods and techniques on how to doodle on cell phone photos. Choose appropriate photos to determine your graffiti style. Observe and plan carefully. Use graffiti tools to master color matching skills. Use layer functions to perform layered operations. Use templates and stickers to add interest. Flexibly use filters and color to stimulate creativity. Be good at using lines and graphics. Explore different material effects. Add text and handwritten fonts to match the background and environment. Pay attention to details and decoration. Share and learn with others.

2024-02-02 comment 0 1124

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 1173

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 1027

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