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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11317

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 17628

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 11330

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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web front-end settings

Course Introduction：With the development of information technology, the Internet has become an indispensable part of modern society. In this digital era, websites have become one of the important platforms for companies, institutions and individuals to display their image. The front-end design of the website has become an important part of the website design. In this article, we will explore the following: what is a web front-end, what technologies does a web front-end include, and how to set up a web front-end. 1. What is the Web front-end? Briefly speaking, the Web front-end refers to the user interface built in the browser. That is, when we enter the address of the website, first

2023-05-26 comment 0 830

vivo launches new tablet vivo Pad Air, reveals Google Play support list

Course Introduction：According to news on July 16, vivo recently launched a tablet called vivoPad2 in China, and the brand seems to be developing another new tablet called vivoPadAir. According to the latest news, vivoPad Air has appeared on the list of devices supported by Google Play. Despite this, vivo has yet to announce any official news about this new tablet. According to the observations of foreign media, it is possible that vivoPad Air is a lightweight version of vivoPad2. It is expected that vivoPad Air will appear on various certification websites soon, which will also bring more reports to everyone. As far as the editor understands, referring to the specifications of vivoPad2, this tablet computer

2023-07-22 comment 0 1925

Are Apple Macs obsolete?

Course Introduction：Today, this site will share relevant content about whether Apple Mac is outdated. If it can solve your problem, please pay attention to this site. Get started now! Apple adds the first MacBook Pro with TouchBar to the list of obsolete products. Among the classic designs of Apple MacBook Pros of all generations, the new design in 2016 is particularly eye-catching. In addition to the thinner body and larger touchpad, the butterfly keyboard and TouchBar have also become the focus of heated discussion. The introduction of this touch bar provides users with more interaction methods, replacing traditional function keys, making operations more convenient and personalized. Whether in daily office or creative design, TouchBar plays an important role. Its emergence is not just a technological innovation,

2024-02-05 comment 0 1136

Pre-sales for Honor's new machine are about to begin: Comprehensive analysis of the highlights of X50i +

Course Introduction：According to news on November 3, a brand new Honor X50i+ mobile phone recently appeared on the e-commerce platform, announcing that it will start pre-sale at 10:08 am on November 10, and will be officially launched at 10:08 am on November 17. First sale. According to the official poster, this new phone adopts a unique circular cut-edge lens design and is equipped with dual cameras and powerful flash on the rear. The body is available in two fashionable colors, pink and blue, and the frame adopts a popular flat design, making the whole machine highly recognizable. According to the editor, this new machine is codenamed LLY -AN00, equipped with a 2.4GHz processor, although the model has not been officially disclosed. At the same time, this phone does not support expansion memory cards, but it has a built-in memory card.

2023-11-03 comment 0 1261

Course Introduction：In today's Internet era, user experience has become one of the important factors for the success of a website. Whether it is a corporate official website, an e-commerce platform or a personal blog, a good user experience can attract more visitors and help the website improve user satisfaction and retention rates. However, achieving a great user experience is not easy. In addition to external factors such as website design and content quality, website performance is also very critical. If the website loading speed is too slow, it will seriously affect the user's access experience and even lead to user loss. Therefore, optimizing website performance becomes

2024-02-03 comment 0 1358

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