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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11332

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 17635

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 11348

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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Usage example of jquery form validation plug-in in Yii framework

Course Introduction：This article mainly introduces the usage of the jquery form verification plug-in in the Yii framework, and analyzes the relevant operating skills of using the jquery form verification plug-in in the Yii framework to verify input information such as mobile phones and email addresses in the Yii framework. Friends in need can refer to the following

2016-12-20 comment 0 1187

jquery form validation plug-in usage example in Yii framework_php example

2016-12-05 comment 0 1234

Teach you how to disable WordPress comments from storing IP addresses

Course Introduction：Below, the WordPress tutorial column will introduce to you how to prevent WordPress comments from storing IP addresses. I hope it will be helpful to friends in need! By default, WordPress will store the IP address of commenters in the background, mainly for anti-spam comments, such as plug-ins such as Akismet...

2020-11-04 comment 0 2344

What is the use of ipv6?

Course Introduction：ipv6 is the sixth version of the IP address protocol. Its functions: 1. Completely solve the problem of insufficient IPv4 addresses; 2. It can quickly connect to the network without manual configuration, achieving true plug-and-play; 3. Ensure the network layer Integrity and confidentiality of end-to-end communication; 4. Can greatly reduce network delay.

2021-01-08 comment 0 75795

What are the methods to create a site group in Empire CMS?

Course Introduction：There are five ways to build the Empire CMS site group: Direct copy method: copy files and databases to the new server, modify the configuration file and domain name configuration. Remote import database method: install Empire CMS, modify the configuration file, export the old database and import it into the new server, and create the same data table structure. Template integration method: Install Empire CMS, modify the configuration file, copy the template and data to the new server, and integrate the template and data. Plug-in separation method: Install Empire CMS, modify the configuration file, delete unnecessary plug-ins, and install necessary plug-ins on the new server. Note: Use different IP addresses and domain names, configure different site names, regularly update software and plug-ins, and back up data.

2024-04-17 comment 0 1062

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