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Self-study IT network Linux load balancing video tutorial

Course Intermediate 10983

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 17051

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 10754

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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Large memory optimization, what should I do if the computer upgrades to 16g/32g memory speed and there is no change?

Course Introduction：For mechanical hard drives or SATA solid-state drives, you will feel the increase in software running speed. If it is an NVME hard drive, you may not feel it. 1. Import the registry into the desktop and create a new text document, copy and paste the following content, save it as 1.reg, then right-click to merge and restart the computer. WindowsRegistryEditorVersion5.00[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement]"DisablePagingExecutive"=d

2024-06-18 comment 0 1117

Blue screen problem caused by win10 memory management

Course Introduction：The win10 system is an excellent system that is worth using. Its strong compatibility and high intelligence can ensure that there will be basically no problems in the use of the win10 system. However, recently, many friends have reported that their computers frequently have blue disks. And it always prompts the error code memorymanagement. What's going on? Today, the editor will bring you the solution to the frequent blue screen of win10 and the memory management termination code. If you need a game, come and take a look. Solution to win10memorymanagement blue screen: Solution 1: 1. Use "Win key + R" + enter "control + enter" to enter the control surface

2023-12-30 comment 0 1935

How to adjust the number of scroll bars at startup?

Course Introduction：How to set the scroll bar when booting too many times 1. In the Device Manager, change the "Device Type" on the hard disk's primary/secondary screen to "None" 2. Reduce the scroll bar time at booting. Every time you start Windows XP, the blue scroll bar will appear. Need to scroll multiple times. To speed up startup, we can fine-tune the scrolling time. Open the Registry Editor and navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\MemoryManagement\PrefetchParameters. Find the EnablePrefetcher primary key on the right and change its default value to 3

2024-01-20 comment 0 896

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