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Self-study IT network Linux load balancing video tutorial

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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 does the display attribute in css mean?

Course Introduction：The display property in CSS sets the display type of an element and controls how it appears on the page. Possible values include: inline: Inline elements, at the same level as the text, only occupy the content width. block: block-level element, fills the available width and wraps. inline-block: It has both inline and block-level element attributes and can be arranged inline but takes up width. none: hide the element. Flex: Create a flexible container to facilitate layout and size control. grid: Create a grid container to facilitate arranging and aligning elements. ruby: add phonetic notes or comments. table: Displayed as a table.

2024-04-25 comment 0 1195

The role of table in html

Course Introduction：The table element in HTML is used to create tables that organize and display data, including data cells in rows and columns. Its benefits include organizing data, enhancing accessibility, responsive layout, and style control. Be aware that overuse may make it difficult to maintain and may affect performance for large data sets.

2024-04-27 comment 0 417

What are the values of display in css

Course Introduction：The value of the Display attribute defines how the element is displayed in the document: Block: Block element, which occupies the entire width of the line and can contain inline elements. Inline: Inline elements can only set the width and cannot contain block elements. Inline-block: combines the characteristics of block elements and inline elements, and can include inline elements. None: Hides the element and no longer occupies document space. Flex: A scalable container that controls element arrangement and size. Grid: Grid layout, which can create a layout with multiple columns and rows. Table: Table element, consisting of table header, table body and table foot.

2024-04-28 comment 0 655

Urban Nexus M smart watch makes a shocking debut, leading a new trend in sports with multiple functions

Course Introduction：According to news on June 6, the Urban Nexus M smart watch was released in India today, bringing consumers a series of exciting features and designs. This smartwatch features a square dial design and is available with silicone straps in a variety of stylish colors, including black, pink, blue and green. The UrbanNexusM watch is equipped with a high-definition 2-inch display, bringing clear and bright visual effects. Users can make Bluetooth calls through the watch to achieve convenient communication functions. At the same time, this watch also provides more than 150 cloud-based watch faces for users to choose from, fully meeting the needs for personalized customization. According to the editor's understanding, the Urban Nexus M watch also has advanced voice control functions. Built-in sound-isolating microphone and

2023-06-06 comment 0 1475

Samsung launches M80D smart display that supports streaming and cloud gaming and can be used without a PC connection

Course Introduction：According to news from this site on January 8, Samsung released new products intensively at CES2024 today. The new generation smart display M80D appeared on the booth, which has some detailed improvements compared to the old M8. This product retains many of the hardware specifications of the 2023 M8, including the 32-inch 4K panel and detachable camera. The previous generation M8 smart display already had some features that worked without a PC, but the new version has expanded functionality. The device isn't very feature-rich on its own, supporting only video calling via the webcam and streaming content from providers like Netflix and Prime Video. The monitor also supports Samsung’s Game Center, allowing users to play via cloud gaming. Finally, the machine is also used to control intelligent

2024-01-13 comment 0 613

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