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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17646

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 11353

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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How to use Adobe Photoshop CS2 Adobe Photoshop CS2 tutorial

Course Introduction：1. First of all, in order to facilitate the demonstration, we must find good materials. I found a high-definition picture from the Internet. If the picture is high-definition, it will facilitate subsequent operations and subsequent changes. As shown in the picture below, Xiaoping has found a better material. 2. After finding good materials, we click on the picture, then open the PS software, drag the picture into the operation area, do not move it yet, and wait for the next step. As shown below. 3. Today, the editor will explain how to adjust the toolbar as an example. The first one is to explain the color levels tool. Everyone knows that colors are divided into color levels. When the color levels are more concentrated, the color screen will have fewer colors. Therefore, by adjusting the color levels, we can make the colors in the screen more concentrated. . As shown below. 4. The second one will explain to you the curve tool, curve

2024-06-02 comment 0 1227

What analyzer is icp-aes?

Course Introduction：ICP-AES refers to Inductively Coupled Atomic Emission Spectrometer, which is a large-scale precision inorganic analyzer mainly used for qualitative and quantitative analysis of inorganic elements. Because the ICP-AES analyzer adopts computer technology, the intelligence of the instrument, the pictures and texts displayed on the screen, and the collection and processing of data have all reached the current domestic advanced level.

2021-01-21 comment 0 16295

How to use Photoshop to design wrinkle effects

Course Introduction：After importing your flat fabric picture into PS, import the wrinkle material you found onto your flat fabric, and adjust the size so that it covers your entire canvas. Finally rasterize the layer. Go to [Image]-[Adjustment]-[Decolorize] (CTRL+SHIRT+U) on the wrinkled layer and click [File]-[Save As] to save it in PSD format to hide the wrinkled layer. Use [Filter]-[Distort]-[Displace] on the original background layer. Click OK and be asked to select a file. Here, select the PSD format file just saved. This will give your plane a wrinkled, distorted effect. Redisplay the wrinkle layer, change the blending mode of its layer to [Linear Light], and finally the wrinkle effect on your fabric will appear!

2024-04-17 comment 0 630

What is the BTC liquidation heat map? What do you think?

Course Introduction：The BTC Liquidation Heatmap is a visualization tool used to show the concentration of liquidated positions in the cryptocurrency market. It shows the number of positions liquidated within a specific price range via a color chart, with the larger the range, the darker the color. You can understand market trends, liquidity conditions, and potential support and resistance levels by using liquidation heat maps in conjunction with other indicators, such as order book depth and open interest (OI).

2024-10-17 comment 0 1055

Course Introduction：The renderings of this tutorial are very classic, the characters and background tones are blended, and the clothes and hair are very elegant. A bit like a saint in a fairy tale. The focus of the production is on the production of clothing. The author's description is a bit crude, and the actual production requires a lot of energy and time. Original image Final effect 1. Open the cloud background shown in the image below and enlarge it appropriately. Gaussian blur, and then adjust the color appropriately, the effect is as shown below. 2. Open the character material, cut out the character, and then liquefy it. 3. Press Ctrl + U to cut out the person...

2017-06-16 comment 0 2799

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