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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11357

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 17659

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 11374

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 set the access card for Xiaomi Civi4Pro Disney Princess Limited Edition?

Course Introduction：How to set up the access card for Xiaomi Civi 4 Pro Disney Princess Limited Edition? Enter [Settings] and select [Connect and Share]. Turn on the NFC function. Open [Xiaomi Wallet] and enter [Xiaomi Card]. To add a door card, select [Door Card]. Place the keycard in the Xiaomi NFC sensing area. Authenticate. Enter the access card. Customize access card information. The access card entry is successful. Parameter configuration Color matching introduction

2024-07-10 comment 0 921

How to enter the access card on Xiaomi Mi Band 8nfc

Course Introduction：In today's society, access control cards have been widely used in various units and places, such as residential communities, office buildings, schools, etc. People with access cards can enter and exit these areas quickly and easily. However, carrying access cards with you is also inconvenient and can easily be lost or forgotten. At this time, the NFC access card entry function of Xiaomi Mi Band 8 can help solve this problem. The NFC access card entry function of Xiaomi Mi Band 8 can store access card information into the bracelet, allowing users to freely enter and exit relevant areas without carrying an access card. First, users need to turn on the NFC access card entry function through the Xiaomi Mi Band 8 supporting APP. Then, after the bracelet enters the entry mode, place the access control card close to the NFC sensing area of the bracelet, and follow the APP's instructions.

2024-08-17 comment 0 1021

How to set the access card for RedmiK70 Extreme Edition?

Course Introduction：Tutorial on setting up access control card for Redmi K70 Extreme Edition Open the access control management application on your phone. Select the "Add access card" option. Place the access card over the NFC sensing area on the back of your phone. The mobile phone reads the access card information and displays it on the screen. Enter your name, mobile phone number and other information to complete the entry process. common problem Connect Bluetooth Change input method

2024-07-29 comment 0 918

Copy access card using NFC function in iOS 16 version

Course Introduction：How to copy the access card with iphonenfc 1. Operating tools: iphone14 Operating system: ios16iphone14nfc The method of copying the access card is as follows: Open Settings-General-NFC and turn on NFC. Find Shortcuts, find Automation, click the + sign in the upper right corner, and select Create Personal Automation. Find NFC scan. 2. Step 1: Install the NFCTools application. First, you need to download and install the NFCTools application in the Apple App Store. This application can read and write NFC tag information. Step 2: Read the access card information. Use the NFCTools application to read the access card information. 3. First, you need to open your phone, search for [Wallet] on the phone interface, as shown in the picture below. Then click again

2024-01-15 comment 0 6009

How to use Xiaomi Mi Band 8nfc as an access card

Course Introduction：With the continuous advancement of technology, smart bracelets have become an indispensable part of our daily lives. As the latest product of Xiaomi Technology, Xiaomi Mi Band 8NFC retains its original functions and adds an exciting new feature: using the bracelet as an access card. Many people have this experience: when they go out, they already have their bags in their hands, and it is a bit troublesome to take out the access card, especially when we only need to swipe the card to go. Now, with the help of Xiaomi Mi Band 8NFC, this problem is solved. It's actually very simple to operate. First, make sure your Xiaomi Mi Band 8NFC has been successfully bound to your phone. If the binding has not been completed, you can download the Xiaomi Mi Band APP from the mobile app store and follow the prompts to complete the pairing process. After the binding is completed,

2024-08-17 comment 0 690

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