SQL: create table School # Create table( `SchoolId` char(5) NOT NULL comment 'Primary key, school number', # Manually input, can also be designed to auto-increment, 5 characters, numeric, or a combination of numeric and characters, with code restrictions when saving data in text. `SchoolName` nvarchar(500) NOT NULL DEFAULT '' comment 'School name', `SchoolTelNo` varchar(8) NULL … Read more
When using Python for data collection, we often encounter error messages like the one below: URLError: <urlopen error[SSL:CERTIFICATE_VERIFY_FAILED]> Cause Analysis: The first reason is that if a self-signed certificate is used, the internal server or development environment may employ a self-signed SSL certificate. Since these certificates are not signed by a public Certificate Authority (CA), … Read more
Open-source tools like Linux Malware Detect and Chkrootkit can alert you to unwanted visitors on your server. Translated from “Linux Security: Scan Your Servers for Rootkits With Ease” by Jack Wallen. Linux is one of the most secure operating systems on the planet. However, nothing is absolutely secure, and if a server is connected to … Read more
World Trade Center 1. What is mcookie http://man.he.net/man1/mcookie mcookie – Generates authentication tokens for the X Window System authentication tool xauth mcookie is a command-line tool that runs on Unix-like operating systems, primarily used to generate random 128-bit hexadecimal numbers. These numbers are highly random and unpredictable, making them commonly used as session keys, unique … Read more
1. Revolutionary Improvement in Architecture Efficiency 1.1 Significant Increase in Class Loading Efficiency Spring Boot 2.7 introduces <span>AutoConfiguration.imports</span> which adopts manifest-based configuration loading, compared to the traditional SPI mechanism: Traditional SPI scan path: META-INF/services/** Spring Boot new solution: META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports By using precise configuration manifest indexing, it reduces classpath scanning operations by 90%. Actual data shows … Read more
Background In mid-January, ZDI announced the rules for the 2017 competition, which included a substantial reward for teams that could break VMware and achieve virtual machine escape. VMware is no longer a new target; it was identified as a target in 2016. As a target, VMware has undergone various attacks, with many points of attack … Read more
Xinch Chip Technology and Yunchi Future are both outstanding representatives of the Beijing Economic and Technological Development Zone. Since 2022, the two parties have initiated a strategic cooperation. Yunchi Future’s self-developed 5G/V2X automotive-grade multi-domain interconnected central network controller, equipped with Xinch Chip Technology’s G9 series central gateway chip and E3 series automotive-grade MCU, has been … Read more
Hi This is the 1995th article shared by Guoheng Assistant.If we compare the engine to the “heart” of the car, then the “brain” of the car should be the ECU. What is the ECU? How does it work? This article provides a detailed analysis.What is ECU?ECU has two full names, namely Engine Control Unit and … Read more
Clickthe blue text to follow Wangcai Powertrain For more timely and valuable content, please follow our WeChatpublic account: wc_dk8 Source: Yilan Zhongche Introduction If we compare the engine to the “heart” of a car, then the ECU should be the “brain”. What is an ECU? How does it work? This article provides a detailed analysis. … Read more
Discussion on Information Security Awareness: Security of SIM and SD Cards in Personal Mobile Phones Case Analysis If a mobile phone is lost and the SIM card is not reported immediately, criminals can easily remove it and insert it into another phone to receive verification SMS messages, which poses a very high risk. This is … Read more