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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11275

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 add the sun to landscape pictures in PS_One filter can do it

Course Introduction：First import your photo into PS, then create a new blank layer on top of it. Then press SHIFT+F5 to quickly fill, and the fill content is [black]. Next we use filter effects. Click [Filter] - [Rendering] - [Lens Flare] in the menu above, then set the lens type to [50-300mm Zoom] in the settings box, and drag the position of the light spot above and adjust the brightness. This represents the sun. Strength size. Then press OK. After it's done, we change the blending mode of its black layer to [Linear Dodge (Add)]. The last photo with sun effect is finished! And you can also increase the brightness of the photo to make the sun's effect more noticeable.

2024-06-06 comment 0 705

Tutorial on how to display text vertically in Edraw flowchart creation software

Course Introduction：1. Draw a flow chart. If you want to make the text stand upright in the flow chart, you only need to narrow the shape of the process. Select a process, and several green dots will appear around the process shape. Just drag these points to adjust the width and height of the shape. 2. Drawing the organizational structure chart When drawing the organizational structure chart, it is necessary to display the name, position and other information at the same time. Narrowing the text box seems to be less applicable, so a different method is needed. Create a new blank organizational chart. In the display option settings under the organizational chart menu, set the content to be displayed, such as whether you need to display photos and the display direction; there is no need to check [Do not change size] in the size settings. Select; Hide all properties in the property settings. After setting the display options, click OK and the position shape will automatically

2024-06-03 comment 0 1131

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 1168

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 1024

charles captures requests in eclipse

Course Introduction：charles captures requests in eclipse

2016-12-02 comment 0 1660

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