TCP/IP

CVE-2020-16898: Windows TCP/IP Remote Code Execution Vulnerability

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CVE-2020-16898: Windows TCP/IP Remote Code Execution Vulnerability

This article is a highlight from the Kanxue Forum. Author from Kanxue ForumID: Toxic Table of Contents 1. Vulnerability Information 1.1 Brief Description 1.2 Component Overview 1.3 Exploitation 1.4 Impact 1.5 Solutions 2. Vulnerability Reproduction 2.1 Environment Setup 2.2 Reproduction Process 3. Vulnerability Analysis 3.1 Basic Information 3.2 Background Knowledge 3.2.1 Basic Knowledge 3.2.2 Terminology … Read more

Computer Basics: IP Addresses and Domain Names

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Computer Basics: IP Addresses and Domain Names

We often hear the term IP, but what is IP? IP stands for “Internet Protocol”, which is the protocol for interconnecting networks, abbreviated as IP. After understanding IP, let’s talk about what an IP address is. First, let me ask everyone a question: there are tens of millions to over a billion hosts connected to … Read more

Huawei HCIA Network Troubleshooting Explained

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Huawei HCIA Network Troubleshooting Explained

Click the blue text above to follow us Resource Sharing Huawei Certification Beginner to Advanced Practical Course ↓ Scan the QR code for practical video lessons ↓ 1. Essential Conditions for Network Troubleshooting Why do we need to discuss essential conditions first? Because the network troubleshooting discussed here is not just about using a small … Read more

Hybrid Teaching Design Based on Lanmo Cloud Class Platform

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Hybrid Teaching Design Based on Lanmo Cloud Class Platform

Author Introduction: Zhang Haiqing, Qingdao Chengyang District Vocational Secondary School, Level 1 Teacher, Master’s Degree, Research Direction in Information Technology Teaching Design (266108). Paper Published In: China Educational Technology Equipment, 2018,05 1 Introduction With the increasing application of new technologies such as cloud computing, big data, the Internet of Things, and mobile computing, the revolutionary … Read more

Analysis of FINS Protocol in Industrial Control Security

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Analysis of FINS Protocol in Industrial Control Security

Introduction PLC (Programmable Logic Controller) was initially just a digital logic controller with a microprocessor for automation control. With the development of programmable logic programs, PLCs have become widely used in the industrial control field, evolving into programmable automation devices similar to compact computers, replacing the numerous relays and counters in automated control systems. PLC … Read more

Essential Network Ports for Network Engineers

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Essential Network Ports for Network Engineers

For laymen, you can simply understand ports as the exit for communication between a computer and the outside world. However, in network technology, ports generally have two meanings: (1) Ports in Hardware Devices Such as interfaces in switches and routers used to connect other devices. (SC ports, etc.) (2) Ports in TCP/IP Protocols Such as … Read more

Communication Methods Between WinCC and PLC: How Many Do You Know?

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Communication Methods Between WinCC and PLC: How Many Do You Know?

Search on WeChat Technical Training There are various communication methods between Siemens WINCC and Siemens PLC. Below are two commonly used communication methods. 1. Using a standard network card to communicate with the PLC via TCP/IP. The prerequisite for connecting WINCC with the PLC system through Ethernet is that the PLC system is configured with … Read more

Essential Knowledge: 7 Basic Uses of the Ping Command

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Essential Knowledge: 7 Basic Uses of the Ping Command

Nowadays, whether in security engineering or weak current engineering, the connection with networks is becoming increasingly close. Among the basic knowledge of networks, the ping command is the most frequently used in projects. Generally, we only use its basic functions. Today, let’s take a detailed look at the 7 basic uses of the Ping command, … Read more

A Comprehensive Explanation of Computer Network Principles

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A Comprehensive Explanation of Computer Network Principles

A Comprehensive Explanation of Computer Network Principles Introduction Hello everyone, I am Tai Dou Xian Ruo Ru, a content creator focused on explaining technology in simple terms. This time I will share knowledge related to the principles of computer networks. I believe the content of this article is already very easy to understand, and I … Read more