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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11382

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 17695

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 11394

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

MoreQ&A

How to ask and consult correctly about computer problems

Course Introduction：For private message consultation on the public account, if you have computer problems, please send relevant questions and descriptions in the public account dialog box! As soon as you follow us, there will be a prompt. If you don’t have time to chat, just ask directly. If you need consultation, please consult. Don’t show your noble quality and quality. We will try our best to answer those who can answer, and ignore those who cannot. Are you there? anyone there? This kind of meaningless content is simply ignored. We only respond uniformly at a fixed time every day. We need to work and cannot chat with you all the time. The correct way to consult is through video and text introduction, so that we can make an accurate judgment. Huaping screen is usually a problem with the graphics card. If you want to be sure to rule it out, you can change the graphics card and test it. If you can't replace it, you can first rule out the driver, software, and system. This one also has a corrupted graphics card, no need to guess, just take a look

2024-06-19 comment 0 608

What will happen if the graphics card temperature is too high?

Course Introduction：Many users will encounter the temperature of the graphics card rising when using the computer. At this time, we must pay attention. If the temperature of the graphics card is too high, it will easily damage other computer components. Therefore, it is recommended to do it as soon as possible. Cool down. What will happen if the temperature of the graphics card is too high? 1. Crash 1. If the temperature of the graphics card is too high, it will affect the running speed of the system, and in severe cases, it will cause a crash. 2. Long-term high-temperature use may cause the capacitor to burst, causing problems with the graphics card's operation. 3. The graphics card also has corresponding over-temperature protection. When the temperature is too high, the safety protection can be activated. 2. Huaping 1. If the graphics card's work is unstable, it will lead to the problem of wavy screen. 2. The temperature of the graphics card or video memory is too high. The fan may also be damaged due to the interference of dust and other foreign matter in the fan.

2024-03-04 comment 0 1465

Apple mobile phone detection hardware

Course Introduction：How to detect hardware problems on iPhone 6? Each Apple mobile phone has its own serial number, which can be checked on Apple’s official website. We can directly search for Apple serial number query keywords on Baidu, and enter Song Query directly on the page. The device restarts regularly, about every 3-5 minutes. There is no response when touching the screen. Can't connect to iTunes when plugging in the data cable. Unable to charge. Unable to make phone calls. Application software crashes. There is no sound when listening to music, watching videos, making phone calls, or playing games. Can not boot. Huaping. How to check the iPhone 6 serial number: Log in to the "Apple China official website", click the "Technical Support" navigation bar in the upper right corner of the main interface, and then find the "View Service and Support Period" link at the bottom of the page to enter. Detection method: ①Use a computer

2024-03-18 comment 0 1156

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 1232

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 1090

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