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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17646

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 11353

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 modify the label in dedecms

Course Introduction：How to modify tags in dedecms: 1. Open the backend management interface of DedeCMS website and log in to the backend management; 2. Find the "Template Management" menu and click to enter; 3. Select the template whose tags need to be modified in the template management interface and click behind it "Modify" button to enter the template editing interface; 4. In the template editing interface, you can see the source code of the template file. Just find the location of the label that needs to be modified.

2023-07-19 comment 0 1563

What does Dreamweaver CMS mainly do?

Course Introduction：Dreamweaver CMS is mainly responsible for the construction, management and maintenance of websites. 1. Website construction, Dreamweaver CMS provides a wealth of templates and plug-in resources. Users can choose appropriate templates and plug-ins according to their own needs and quickly build their own websites; 2. Website management, Dreamweaver CMS provides simple and easy-to-use templates and plug-ins. Management backend interface, users can log in to the backend through a browser for website management; 3. Website maintenance, Dreamweaver CMS provides automatic backup and database management functions to ensure the security and stable operation of the website.

2023-08-08 comment 0 974

How to modify the navigation bar in dedecms

Course Introduction：How to modify the navigation bar of dedecms: 1. Log in to the dedeCMS background management interface; 2. Find "System" in the left menu bar, enter and select "Template Management" to operate; 3. Find and click to open the "templets/default" folder; 4. , find "head.htm" or a similar file, open it, and see the HTML code; 5. Start modifying the style of the navigation bar from here.

2023-07-19 comment 0 1810

Where can I buy the membership group plug-in in Empire CMS?

Course Introduction：The Empire CMS purchase membership group plug-in is located in "Backstage->Members->Member Group Management". Specific usage: Install plug-in: Upload the plug-in to the /e/extend/plugins/ directory. Enable plug-in: Enable the "Purchase Membership Group" plug-in in the plug-in management interface. Create a membership group: Create a membership group that needs to be purchased in the membership group management interface. Set payment method: Set available payment methods in payment method management. Set up a purchase page: Use the [payfun] tag to create a purchase page template. Generate purchase link: Fill in the information as required to generate a purchase link. After the user pays successfully, the system will automatically add them to the purchased membership group.

2024-04-17 comment 0 538

How to adjust the overall color in sai_sai overall color adjustment tutorial

Course Introduction：1. First open the sai software interface and you will see the default color palette. 2. Then there is a row of buttons above the color wheel, which can open and close additional color adjustment panels. If needed for color adjustment, click the Show/Hide Scratchpad option. 3. Another way to switch panels is to select from the window options in the menu bar. This operation is the same as PS. You can also open the Scratch Pad panel from here. 4. Then you need to click a brush. 5. After selecting the color to be adjusted, right-click on the color in this small area (at this time, you will see the cursor turning into a straw tool). This will select the color for color adjustment just like the eyedropper, as shown in the picture. Shown is a color change. 6. Finally, if you want to adjust multiple colors at one time and want to save them, you need to use a custom color wheel. exist

2024-04-08 comment 0 504

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