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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11330

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 17633

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 11347

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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Transfer files from mobile phone to USB drive

Course Introduction：How to transfer files between mobile phone and USB flash drive 1. Transfer photos from mobile phone to USB flash drive: Method 1: Connect the mobile phone and USB flash drive to the computer, and copy the photos to the USB flash drive; or transfer them via WeChat and QQ on your mobile phone Send the photos to "My Computer" and then copy them to a USB flash drive. 2. Connect the mobile phone and USB flash drive with a converter. After inserting the USB flash drive into the mobile phone, you can usually see the USB flash drive folder when entering the phone. The one on the right here is the mobile phone USB flash drive I inserted. Open the photo you want to transfer to the USB flash drive on your phone and click on it. 3. First plug one end of the data cable into the USB flash drive and the other end into the mobile phone. Then you can see the new storage with OTG displayed in the file manager of the phone. Then press and hold to select the file on your phone. At this time, there will be a copy option in the lower left corner, click

2024-02-02 comment 0 5795

Copy mobile phone files to USB drive

Course Introduction：How to transfer mobile phone files to a USB flash drive? Use a converter to connect the phone and USB flash drive. After inserting the USB flash drive into the mobile phone, you can usually see the USB flash drive folder when entering the phone. The one on the right here is the mobile phone USB flash drive I inserted. Open the photo you want to transfer to the USB flash drive on your phone and click on it. Find the DCIM folder in the phone. Copy the files that need to be transferred to the USB drive. Just paste it into the USB drive. First, plug one end of the data cable into the USB flash drive and the other end into the mobile phone. Then you can see the new storage with OTG displayed in the file manager of the phone. Then press and hold to select the file on your phone. Use the data cable to connect the phone to the computer, then copy the downloaded video files from the phone to the computer, insert the USB flash drive into the computer, and copy the video files to the USB flash drive. First place the phone

2024-06-03 comment 0 701

How to mirror seewo whiteboard to mobile phone How to mirror seewo whiteboard to mobile phone

Course Introduction：First, open [Seewo Whiteboard] on your mobile phone and computer respectively. Then, use [Seewo Whiteboard] to open the courseware on the computer, and the mobile software will display the [Mobile Teaching] button, click it. Then, control it on the mobile phone, and you can choose two control modes: [courseware/remote control]. The courseware content will be synchronized on the computer side. On the mobile phone, you can select tools and perform real-time [annotation] and other operations.

2024-06-10 comment 0 495

How to turn on scheduled pause on Apple phone_Share on turning on scheduled pause function on Apple phone

Course Introduction：1. Open the clock application on your phone. 2. Find the clock on the lower right and select Edit. 3. Set the time you want the countdown to end, and then select [Enable when timer ends]. 4. Just choose to stop playing. The phone will close all system software after the countdown ends.

2024-03-22 comment 0 981

Which tablet anti-virus software is the best (recommended tablet anti-virus software)

Course Introduction：Products have greatly differed from consumers' needs. Domestic mobile phones have been in the public eye for some time, due to the leading performance of mobile phones and competition from brand manufacturers. How to judge which one is better to use? If consumers are not familiar with domestic mobile phone brands, what should they do when choosing mobile phone applications? In this issue, we will talk about these 4 relatively easy-to-use mobile phone security software in 2022 for domestic mobile phone brands. Before we talk about this, let’s first understand the classification of mobile security software. One is the software end from the application software end to the user end. Domestic smartphone security software is divided into two categories. Currently, the other is the software end from the PC end to the mobile end. But there are also some common points and advantageous strategies, each with its own role and focus, no matter what type of security software it is. 1

2024-04-12 comment 0 1013

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