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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.

Shangxuetang MySQL video tutorial

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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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How to turn daytime into dusk using Photoshop

Course Introduction：Before doing this, you need to find a picture of the dusk sky. Put the photo into Photoshop and use various selection tools to select your sky. CTRL+J will select the selected sky. Drag the dusk sky image into the image and move the layer to the top. Right-click on the dusk layer and [Create Clipping Mask], and your blue sky will become dusk. Don't think it's over. The sky has turned into dusk, and other scenery still looks like daytime, and it should match the dusk background. Finally, click [Image]-[Adjustment]-[Match Color], and select the dusk material in [Source] in the image statistics.

2024-04-17 comment 0 966

'Everything is New' Guide to Drinking Tea in Snow Scenery and Cold Forest Pictures

Course Introduction：How to choose tea in the snow scene and cold forest picture of "Everything is new"? After the update on July 11, Wuhua Mixin installed a new device, Snow Scenery and Cold Forest Picture. So how should you choose the tea tasting of Snow Scenery and Cold Forest Picture? Let us find out next. Guide to drinking tea with fresh snow scenery and cold forest pictures 1. Origin - getting to know each other Correct topic: [Mountain climbing plan] [Landscape confidant] [Immortal in the painting? 】【Like snow very much? 】Wrong topic: 【Mountains or water, which one do you prefer? 】【Unplanned travel...】【View on summer...】【Have you ever thought about living in seclusion? 】2. In line with the experience of nearly a thousand years: Have you changed? (√) Changes in the sea (x) The wonder of nature: traveling together? (√) Feeling the world (x)

2024-07-18 comment 0 563

The latest computer high-definition desktop wallpaper high-definition picture collection

Course Introduction：1. The latest computer HD desktop wallpaper HD picture collection The latest computer HD desktop wallpaper HD picture collection The perfect combination of beauty and functionality: HD desktop wallpaper Spend a lot of time on the computer for work or leisure and entertainment, it is very important to have an attractive desktop background image of. High-definition desktop wallpapers not only add beauty, but also enhance your work efficiency and mood. In this article, we will introduce you to some of the latest high-definition desktop wallpapers for computers to help you find the perfect wallpaper to decorate your computer. 1. Natural scenery Natural scenery is one of the most popular desktop wallpaper themes. Whether it's a stunning view of the mountains or a sunset on the beach, bring a sense of tranquility and relaxation to your computer. Nature landscape wallpapers are not only beautiful, they can also help you relieve

2024-08-12 comment 0 598

A Brief History of Windows Desktop Backgrounds

Course Introduction：The photographer of the famous Windows XP desktop background landscape picture didn't anticipate it becoming one of the most iconic Windows images of all time. This realization inspired me to look back through time at some of the designs that

2024-06-19 comment 0 1256

800 drones weave blessings in the night sky of Beilun, Ningbo

Course Introduction：Beilun, Ningbo presented a colorful night sky landscape on the night of December 29. At 7 o'clock in the evening, as the sound of music played, a formation of 800 drones slowly took off from the central square. Multiple groups of huge light and shadow shows appeared in the sky, showing Beilun Mountain Lighthouse, Meishan Red Bridge, Port Museum and other landmark buildings in the sky, showing Beilun's unique charm and cultural heritage. This spectacular scene attracted the attention of people all over the city to welcome the arrival of the new year. Photographer Lin Siyu recorded the live moments of this performance. When night falls, the drone uses light as a pen to draw huge letters in the sky: "Tide flows to the east and looks at Beilun." This shocking scene triggered cheers from the audience, who took out their mobile phones to freeze the magnificent scene of this moment. photography

2023-12-31 comment 0 1121

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