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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

Course Advanced 17601

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 11310

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 on QQ Music car mode How to turn on car mode

Course Introduction：Most users use various music APPs to listen to songs in their daily lives. Whether it is content search or downloading, they can be easily completed. The powerful loading function and massive music modes bring users an excellent user experience. They can also enable the car mode for use in the car, but many users don’t know how to turn on this mode? Detailed operation guide for turning on the car mode with one click 1. First open the QQ Music app, enter the QQ Music page and click on a song 2. After coming to the song page, click the [two dots] icon 3. On the pop-up page, Then slide through the options that pop up at the bottom of the page to see [Driving Mode]

2024-06-10 comment 0 1067

How to connect QQ Music to car speakers

Course Introduction：How to connect QQ Music to car speakers? QQ Music is a music player software with diversified service functions. It can not only provide us with a large amount of high-quality music content, but also provide us with excellent music listening services in our daily life. In QQ Music, we can get car music listening service by setting up the connection to the car Bluetooth speaker. If you don’t know how to connect the car speakers, follow the editor to introduce the car mode setting method. How to connect QQ Music to car speakers After opening the QQ Music software on your phone, enter the main interface. There are multiple options on the main interface. Click the "Settings" icon in the upper left corner to enter another interface. 2. After entering the main interface of the above steps, pull down the settings option main page and you will see an item

2024-02-06 comment 0 1918

How to use NetEase Cloud Music decompression mode_A list of steps to enable NetEase Cloud Music decompression mode

Course Introduction：1. On the home page of NetEase Cloud Music APP, enter the My Area 2. Find the sleep aid decompression section in the music application. If it is not available on the main panel, click Add and you will see it. 3. After entering, click the arrow below to switch to decompression Mode 4. There are two decompression methods, which can be switched by sliding up and down.

2024-04-17 comment 0 410

How to set theme skin for NetEase Cloud Music

Course Introduction：Presumably everyone has this listening app on their mobile phone. It provides countless music songs, and they are all authorized and free to play and listen to. At the same time, there are many exquisite themes and skins for free download, so you can freely set what you like. Whether it is animation, celebrity film and television, car, etc. skins, you can see them in the personalization section. You only need to enter relevant words to find the corresponding skin results. Just download and set them with one click, and they are all free forever. , it is very pleasant to have an exclusive music skin theme. Now the editor will provide details on how to set the theme skin for NetEase Cloud Music users online. 1. Open NetEase Cloud Music and click the "Skin" icon in the upper right corner; 2. Wait until the skin page pops up

2024-04-11 comment 0 893

How to solve the problem that the computer software has sound but the web page has no sound?

Course Introduction：Using computers is something we must do every day, whether for work, study or entertainment. But I don’t know if you have ever encountered such a problem, that the computer software has sound but the web page has no sound? Share with friends you met, how did you solve and deal with it? I believe that many children's shoes that are currently encountered are a little melancholy and don't know how to start, because this greatly affects the use effect. In fact, the method is very simple, you just need to do it yourself. If you don’t know how, here are the specific operation methods prepared by the editor for you. I recommend a third-party tool that is easy to use and can quickly solve the problem of computer software with sound and web pages with no sound. Kuaikui Sound Repair Assistant (click to download) is professional and trustworthy. 1. Check your computer’s audio settings. computer

2024-09-02 comment 0 832

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