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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11361

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 17663

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 11380

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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XRP ETF: Will the Upcoming US Elections Fast-Track Its Approval?

Course Introduction：With Bitcoin and Ethereum ETFs already in the bags, there are now indications that XRP, the core currency of the Ripple ecosystem, and Solana might be the next major cryptos to record the same feat.

2024-10-29 comment 0 331

Which exchange is the core currency on? Recommended core currency trading platform

Course Introduction：Which exchange is Core Coin on? Core Coin Trading Platform Recommendations The blockchain and virtual currency markets are developing rapidly, and various new digital currencies are emerging one after another, among which Core Coin has attracted much attention. So, as investors, which exchange should we choose to trade Core coins? This article will give you a detailed analysis of which exchanges Core coins are on, and recommend several Core coin trading platforms worth paying attention to. Introduction to Core Coin Core Coin is a virtual currency based on blockchain technology. Its decentralization and anonymity have attracted much attention. Different from other currencies, the total amount of Core currency issuance is limited and the issuance speed is fixed, which makes it have certain investment value. Core Coin Exchange Key Points to Choose When Choosing a Core Coin Exchange

2024-02-11 comment 0 1170

What currency is AVAX?

Course Introduction：What currency is AVAX? AVAX, full name Avalanche, is a decentralized digital currency that adopts the Avalanche consensus protocol. It is the native token of the Avalanche network and is designed to provide a secure, scalable and flexible blockchain platform. AVAX is the core currency of the Avalanche ecosystem and is used to pay transaction fees, participate in governance, and reward miners. What is the Avalanche consensus protocol? The Avalanche consensus protocol adopts a method based on probability judgment to reach consensus, which is different from the traditional consensus mechanism based on Proof of Work (PoW) or Proof of Stake (PoS). It utilizes a protocol called "Snowball" to select the next

2024-02-23 comment 0 1231

What currency is NSBT? Where can I trade NSBT coins?

Course Introduction：What kind of currency is NSBT coin? NSBT coin (NeutrinoSystemBaseToken) is a cryptocurrency issued by the Neutrino protocol. Neutrino Protocol is a decentralized stablecoin protocol dedicated to creating digital currencies linked to real-world assets. NSBT currency is the core currency of the protocol and is used to govern and ensure the security of the protocol. The Neutrino protocol adopts an on-chain governance model, allowing holders to participate in decision-making and control the future development of the protocol. People who hold NSBT coins can vote on matters such as inflation rates, reward programs, and the addition of new features. This allows NSBT coin holders to have an important influence on the development of the Neutrino protocol. NSBT coin

2024-01-31 comment 0 1076

How to check the market value of protocol currency?

Course Introduction：How to check the market value of protocol currency? Protocol currency, also known as platform currency, is a digital currency issued by the blockchain platform. It is usually used to pay various transaction fees on the platform, make pledges to obtain rewards, or participate in governance. The market value of protocol coins refers to the total value of all protocol coins in circulation. This value is one of the important indicators for evaluating the popularity and importance of protocol coins. Through market capitalization, people can better understand the appeal and influence of protocol coins in the market. This can also affect investor and user confidence in the protocol currency, thereby affecting its price and market performance. In the field of cryptocurrency, protocol currency plays a vital role as the core currency of the platform ecosystem. Steps to check the market value of protocol currency: Choose a reliable website or platform: There are many websites

2024-03-21 comment 0 682

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