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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 17643

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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Name That Tune! The 8 Best Mobile Music Trivia Games

Course Introduction：If this sounds like you, then it's time to put that knowledge to the test. These fun, free music trivia games will challenge your musical ear and have you singing a new song when you win. 1 SongPop - Guess The Song Even if you&#3

2024-07-01 comment 0 938

How to use a computer to record karaoke songs with mobile phone headphones (how to use headphones to record songs in karaoke)

Course Introduction：1. How to use earphones to record songs in National K-Song? You need to use earphones to record good music. Plugging in earphones is for better singing. This is why Sing Bar will prompt you when you sing. The effect of plugging in earphones will be Better or something. How to use earphones to record songs in karaoke for the best effect? First: only wear one earphone. This is very important. Wear headphones in one ear, not both, otherwise you won’t be able to hear your own voice and won’t be able to grasp it. Second: the sound is imported with your back to the headset. There is a small hole right next to the microphone of your headset, which is the sound inlet. When you record a song, you enter the phone from here. Many people have breathing noise when recording songs. The main reason is that they sing directly into the vocal inlet, and then the breathing and other sounds are recorded. Turn it over and turn your back to it

2024-07-17 comment 0 931

Honor Earbuds A Bluetooth headset released: 'Golden Ear” certification

Course Introduction：Honor EarbudsA Bluetooth headset is currently available for pre-sale on JD.com. This headset features a "10mm dynamic unit" and will be officially launched on May 27, with an initial sales price of 129 yuan. According to reports, this headset adopts a semi-in-ear ergonomic design and is available in two colors: cloud water blue and morning mist white. It adopts a semi-in-ear design and weighs only 3.8g per ear. In terms of specifications, this headset is equipped with a polymer-compliant titanium-coated diaphragm, a 10mm dynamic unit, HiFi5DSP high-performance computing, and 4 preset customized sound effects (treble, bass, vocal, original sound). It is also claimed to have "passed the China Electronic Audio Industry association's 'Golden Ear' product certification". In addition, the headset uses Bluetooth 5.3 technology and supports in-ear touch control (double-click to answer calls and music playback status).

2024-06-03 comment 0 376

Microsoft releases a new audio experience video for Windows 11, with major improvements in content

Course Introduction：Previously, Microsoft had released a trailer about the latest conference. Recently, Microsoft released a new win11 short film, in which the camera gradually moved to the character's ears, and finally gave a close-up of the ears, which may indicate that win11 will be released soon. There are major changes in audio, let’s take a look at them below. Microsoft released the latest short video of win11. 1. Previously, Microsoft announced that it will hold a new event on June 24. 2. In the last 11-minute trailer, audio from previous generations of Windows systems was mixed and played. 3. Although the newly released short film is only a few seconds long, it has a clear theme and focuses on audio. 4. The short film gives a close-up of the ears for a long time, accompanied by unique music sounds. 5. Therefore I

2024-01-04 comment 0 1207

Five Linux music players to give your ears the ultimate music experience

Course Introduction：Are you tired of your music player on Windows or Mac? Do you want to find a music player on Linux that can meet all your needs? If your answer is yes, then you should definitely read this article. We recommend five of the best music players on Linux for you. They are not only powerful in function and beautiful in interface, but also compatible with a variety of audio formats and network services. Whether you want to listen to local music, listen to radio stations online or download lyrics and album art, these music players make it easy. Let’s take a look! 1. QmmpQmmp is not the most feature-rich (or the most stable) Linux music player, but it is my favorite, which is why I put it

2024-02-12 comment 0 953

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