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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11328

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 17632

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 11344

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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Application and challenges of PHP framework in large projects

Course Introduction：Using PHP frameworks in large projects can improve development efficiency and code quality. The choice of framework should be based on community support, functionality, documentation, and learning curve. Common applications include user management, data management, routing management and template engines. Challenges include performance optimization, scalability, and code maintenance. In practical cases, the Laravel framework is used to build an e-commerce platform and faces the challenges of high performance, scalability and code management.

2024-06-03 comment 0 1009

How to use CSS Flex layout to implement responsive design

Course Introduction：How to use CSSFlex elastic layout to implement responsive design. In today's era of widespread mobile devices, responsive design has become an important task in front-end development. Among them, using CSSFlex elastic layout has become one of the popular choices for implementing responsive design. CSSFlex elastic layout has strong scalability and adaptability, and can quickly implement screen layouts of different sizes. This article will introduce how to use CSSFlex elastic layout to implement responsive design, and give specific code examples.

2023-09-26 comment 0 866

C++ cloud service integration: seamless interaction with third-party services

Course Introduction：Integrating cloud services in C++ can improve the elasticity, scalability and availability of applications. The integration steps include: 1. Select a cloud service provider; 2. Set up an account; 3. Install development libraries; 4. Write integration code. This article takes retrieving data from AWSS3 as an example to demonstrate the practical application of cloud service integration in C++.

2024-06-03 comment 0 619

How to encrypt folders on win10 computer

Course Introduction：How to set a password for a folder without compression in Win10, set the "encrypt content to protect data" in the properties... Step 1: Download and install Yitong Folder Lock software from Baidu search. Step 2: Right-click the file or folder you want to encrypt. There is a Yitong encryption menu in the right-click menu, and you can directly set password encryption. Step 3: Double-click the encrypted file or folder, and the password box will pop up to enter the password set for encryption. Right-click the folder you want to encrypt and open the Properties tab. As shown below. Select Advanced under the General tab and check Encrypt content to protect your data. As shown below. After clicking OK to exit, a dialog box will pop up asking for the encryption range. As shown below. Just select and enter the password as needed. First, open the Windows 10 system

2024-03-11 comment 0 843

Java cloud computing: common challenges and solutions in operation and maintenance

Course Introduction：Java cloud computing operation and maintenance faces challenges such as limited observability, capacity planning, security and cost optimization. Solutions include: logging, metrics, and tracking tools (observability); cloud autoscaling services and container orchestration (capacity planning); cloud security measures, code review, and container security tools (security and compliance); usage pricing Options and cost monitoring tools (cost optimization).

2024-06-05 comment 0 947

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