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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11396

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 17707

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 11401

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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Using Niginx for load balancing under Linux

Course Introduction：: Using Niginx for load balancing under Linux: This article is a follow-up to the previous article. Three tomcat servers and one nginx server are installed on the Tencent cloud server. The nginx server is used to balance the access of the three tomcat servers. Getting started feels very simple. Yes, the key is to pay attention to some details and improve subsequent learning. Enter conf/nginx.conf under the installation package. Note that it must be under the installation package (mine is under installnginx), not conf under the source code. Modify the file to: http {include mime.ty

2016-07-28 comment 0 1075

How Nginx and GeoIP modules read the geographical information of IP

Course Introduction：Linux installation geoipyuminstallnginx-module-geoiphttp_geoip_module usage scenario 1. Differentiate http access rules at home and abroad 2. Differentiate http access rules in domestic cities and regions After yum is installed, find the installed module file. If nginx is installed with yun, it is usually installed to /etc Note in the /nginx/modules/ directory: If nginx is not installed by yum but compiled and installed from source code, you need to reinstall and compile nginx and add this module, and then you do not need to add this module manually. Manually add the module and load the module and http at the head of the nginx.conf configuration file.

2023-05-14 comment 0 1814

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