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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11386

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 17699

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 11397

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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Alibaba Cloud big promotion: New and old users share cloud servers for 99 yuan/year

Course Introduction：This website reported on July 9 that recently, Alibaba Cloud has launched a new round of server promotions, including a long-term inclusive cloud migration, shared by new and old users, and a 99 plan with the same renewal price. Participation discount link: https://click.aliyun.com/m/1000395153/1. Cloud server ECS economical e-instance Intel Yuan/year is now only 99 Yuan/year. New and old users can share one purchase. In addition, this event also offers free trials of more than 150 cloud products, including: Function Compute FC 180 Yuan quota for 3 months of cloud service

2024-07-11 comment 0 855

Alibaba Cloud Disk three-party rights package discount price adjustment: monthly fee from 10 yuan to 17 yuan

Course Introduction：According to news from this site on August 19, Alibaba Cloud’s “Three-Party Application Rights Package” was launched last month and is open for purchase. The original price is 24 yuan/month, and the limited-time discount price is 10 yuan/month. Today's inquiry on this site found that the preferential price of this product has been adjusted to 17 yuan/month. The specific price adjustments are as follows: Single month: original price is 24 yuan, new discount price is 10 yuan, current discount price is 17 yuan. Annual package: original price is 288 yuan, new discount price is 110 yuan, current discount price is 178 yuan. Third-party rights package + SVIP: original price is 648 yuan, new discount price is 298 yuan, current discount price is 348 yuan. Third-party rights package + 2TB: original price is 486 yuan, new discount price is 238 yuan, current discount price is 298 yuan. According to reports, Alibaba Cloud Disk’s third-party application rights package covers infuse

2024-08-19 comment 0 1038

Xiaomi Cloud Service launches 618 limited-time special offer: 55% off annual membership, starting at 39 yuan

Course Introduction：According to news from this website on June 1st, Xiaomi Cloud Service 618 Special Promotion is launched today. From June 1st to 18th, cloud service membership annual subscriptions are 55% off, with consecutive annual subscriptions starting at 39 yuan. The summary of this website is as follows: the original price of 50GB gold annual membership is 72 yuan, the promotion price is 39 yuan, and the immediate discount is 33 yuan; the original price of 200GB platinum annual membership is 252 yuan, the promotion price is 138 yuan, and the immediate discount is 114 yuan; the original price of 2TB diamond annual membership is 816 yuan, the event price is 448 yuan, and there is an immediate discount of 368 yuan. It should be noted that you can enjoy discounts when purchasing continuous annual membership plans, but the discounted price is only for the first year. After expiration, it will be renewed at an inactive price. Users who do not want to renew need to set up their own settings. Activity restrictions: The same account can only participate in one activity; this promotion cannot be combined with coupons and other other

2024-06-09 comment 0 925

Zhongke Cloud 3A6000 mini desktop computer starts pre-sale: starting from 2,799 yuan, pre-installed UOS 1070 system

Course Introduction：According to news from this site on May 23, according to the official CTCISZ Zhongke Cloud official account, Zhongke Cloud 3A6000 mini desktop computer (CTCI02LS3A6000C-NUC) will officially start pre-sale from now on, and will go on sale on June 3. The product information attached to this site is as follows: 16+256GB: 2799 yuan 16+512GB: 3099 yuan 32GB+1TB: 3599 yuan This computer has a built-in 3A6000 multi-thread processor, uses the LoongArch instruction system, supports 128/256-bit vector instructions; dual-channel memory Supports up to 64GB, DDR4 rate up to 3200MHz, supports dual-channel SODIMM. It supports one M.22280 (PCIE3.0*4) plus a 2

2024-06-04 comment 0 495

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