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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11251

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 17584

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 11299

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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Ubuntu 23.10 will run Firefox in native Wayland mode by default

Course Introduction：Canonical recently announced that in the upcoming Ubuntu 23.10, Firefox Snap has been configured to run in Wayland mode by default. Note: Ubuntu currently has the Wayland session by default, and Firefox can also work normally. However, currently FirefoxSnap actually runs in XWayland compatibility mode, rather than the strict native Wayland mode. Canonical announced that it will run the Firefox browser in Wayland mode by default, so that problems such as interface blur and scaling distortion will not occur on HiDPI displays, and it will support touch gestures such as dragging and pinching. As mentioned above, Ubunt

2024-02-29 comment 0 1228

Review of Wayland's Excellent Screen Recording Software for Linux

Course Introduction：The modern Wayland protocol is used by default in most mainstream Linux distributions such as Ubuntu and Fedora. However, as the successor to X.Org, Wayland is more secure and adheres to modern standards, but this requires developers to re-build applications for Wayland. Linux legacy applications developed based on X.Org will not work properly on Wayland in most cases unless modified. Screen recording software also falls into this category. Many popular screen recording software were developed for X.Org and no longer work in Wayland. But some still work. In this article I will introduce you to my session on Wayland

2023-06-11 comment 0 1797

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