How to solve PHP high concurrency problems? In high concurrency scenarios, PHP servers often encounter performance bottlenecks. In this article, we will introduce several common ways to solve PHP's high concurrency problem, including using cache, using PHP-FPM, using asynchronous processing, etc. 1. 1. Using Caching Using caching is one of the most common ways to improve server performance. By caching frequently used data in memory, you can avoid the need to read data from the database for each request, thus reducing the pressure on the database and improving the server's responsiveness. In ...

In today's online world, securing information is becoming increasingly important as large amounts of sensitive information are transmitted over the Internet. In this context, HTTPS (Hypertext Transfer Protocol Secure) came into being.HTTPS is a secure communication protocol used to secure data transmitted over the Internet.HTTPS uses the SSL or TLS protocols to encrypt data and authenticate websites and protect data integrity. Below we will explain in more detail...

What is a 502 Bad Gateway error? 502 Bad Gateway is when a web server, acting as a gateway or proxy server, receives an invalid response from an upstream server, such as an application server. This is usually caused by the upstream server not working properly or not responding in a timely manner. When a user tries to access a Web site, the Web server forwards the request to the application server. If the application server is unable to process the request or is unable to respond in a timely manner, the Web server will return a 50...

In Magento, if you need to modify a database, you can usually do so by following these steps: Please note that modifying a database is a very sensitive and dangerous operation and requires great care. Before modifying your database, be sure to back up your data and validate and test it between your test and production environments. If you are unsure how to make changes, be sure to consult a Magento professional or developer to avoid unnecessary risks and losses. Hopefully, these steps will help you better understand how to make changes in Mage...

Here is a shared tutorial on installing Python 3.9: Python is a popular programming language that is widely used in web development, data science, artificial intelligence, etc. The latest version of Python is 3.9, and in this article, we will show you how to install Python 3.9 on your Linux system. Steps: Open a terminal and update the list of packages on your system with the following command: sqlCopy codesudo apt update Use the following commands to install the Python compilation and an...

In response to a sudden surge in users, we can take the following measures: To avoid unnecessary trouble when dealing with a surge in users, we need to plan ahead and anticipate. We need to plan and anticipate in advance in order to avoid unnecessary trouble when there is a surge of users. Specific measures are as follows: When the number of users of a website or an application starts to surge, we need to strengthen the servers and network infrastructure. Specific measures are as follows: Load balancing technology can distribute user requests to multiple servers, thus reducing the pressure on a single server. Caching static content reduces the stress on servers and improves the performance of a website or application. Caching static content reduces the stress on the server and improves the performance of the website or application.

DDoS attack refers to the use of a large number of computers, servers, IoT devices, etc. to launch large-scale attacks, so that the target website, servers and other service resources can not provide normal service. DDOS attacks are usually launched by the attacker through the manipulation of a large number of "zombie" devices, which are infected with remote control, and become the attacker's "army" used to carry out attacks. These devices are infected and remotely controlled, and become the attacker's "army" and are used to carry out the attack. The principle of the attack is to send a large number of requests to consume the resources of the target service, such as network bandwidth, CPU, memory, etc., so that the target service can not be normal...

Blocking China IP Addresses Before blocking China IP addresses, you need to know your own IP address. You can get your IP address by visiting WhatIsMyIPAddress. After determining your IP address, you can follow the steps below to block China IP address. Step 1: Get a list of Chinese IP addresses There are two ways to get a list of Chinese IP addresses: Step 2: Configure a firewall on your server After getting a list of Chinese IP addresses, you need to configure a firewall on your server. As ...

The appearance of other people's websites when you open your own domain name may be due to the following reasons: Here are ways to solve these problems: To prevent DNS hijacking, we can take the following measures: To prevent the server from being hacked, we can take the following measures: To prevent malware infection, we can take the following measures:

You can use the command line tool lscpu to view the CPU information of the current Linux system, including the number of physical CPUs, the number of cores of each physical CPU, the CPU model, and so on. Open the terminal, enter the following command to view CPU information: copy codelscpu After executing this command, the output will be similar to the following message: lessCopy codeArchitecture: x86_64 CPU op-mode(s):...