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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11245

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 17581

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 11291

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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What currency is LUNA coin? Is LUNA Coin valuable?

Course Introduction：LUNA Coin: Once a star project, what is LUNA Coin, now a thing of the past? LUNA coin is the core token of the Terra ecosystem, launched by TerraformLabs. The goal of the Terra ecosystem is to provide a stablecoin that enables easy conversion between fiat currencies and cryptocurrencies. LUNA currency plays an important role in the Terra ecosystem, supporting the stability of its stablecoin and serving as a governance token that enables holders to participate in governance decisions of the ecosystem. Through LUNA coins, users can obtain governance rights, participate in proposal voting and ecosystem upgrades. In addition, LUNA coins can also be used to pay network transaction fees and participate in staking to maintain network security and stability. Overall, L

2024-02-29 comment 0 874

Is there really hope for LUNA coin? Is there hope for LUNA coin?

Course Introduction：The currency circle has been bloody in the past two days, and the market sentiment has also fallen into extreme panic. Whether you are an investment novice or an investment veteran, you have once again felt the cruelty of the currency circle. The collapse of LUNA currency brought down the entire virtual currency market. Luna and UST collapsed quickly after encountering attacks from financial giants. The collapse of LUNA currency not only caused the sudden death of Terra, a large public chain ecosystem, but also had a negative impact on the entire public chain ecosystem. The crypto market has had a very negative impact, and many currencies have started plummeting mode. The latest price of LUNA currency $0.0000915≈￥0.000703 Can LUNA currency be saved? It is extremely difficult to save LUNA coins. Although virtual currency has always claimed to be “digital gold&rdqu

2024-06-25 comment 0 1119

How to check the LUNA currency trading volume?

Course Introduction：How to check the LUNA currency trading volume? Steps: Choose a platform that supports viewing LUNA currency trading volume. Search for LUNA currency trading pairs. View transaction volume data. Platform: Exchange: Mainstream exchanges such as Binance, Huobi, and OKX all provide LUNA currency transaction volume query functions. Market websites: CoinMarketCap, CoinGecko and other market websites also provide LUNA currency transaction volume query functions. Block browser: The block browser can view all LUNA currency transaction records, and the LUNA currency transaction volume can be calculated by analyzing the transaction records. Note: The LUNA currency transaction volume data provided by different platforms may be slightly different. The trading volume of LUNA currency changes dynamically, so you need to refresh the page regularly to view the latest numbers.

2024-02-28 comment 0 768

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