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
No matter how one’s mindset changes, technology remains the most powerful weapon in the hands of network engineers! Today’s technical points are explained from small details, which can help beginners solve basic literacy issues and allow experienced network engineers to “review and learn anew”. Let’s take a look together~ 01 LAN (Local Area Network) Typically … Read more
Follow「Raymond Operations」 WeChat official account, and set it as「Starred」, you can also scan the QR code at the bottom to join the group chat, to get the latest content in real time and never miss exciting content. Introduction to DNS DNS (Domain Name System): is a system that uses a client/server mechanism to convert computer … Read more
From: Juejin, Author: Ruheng Link: https://juejin.im/post/6844903490 595061767 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) includes a series of network protocols that form the foundation of the Internet and is the core protocol of the Internet. The reference model based on TCP/IP divides the protocol into four layers: the Link Layer, Network … Read more
TCP/IP Model TCP and UDP Why TCP Requires Three-Way Handshake Why TCP Requires Four-Way Teardown The Process of a Web Page Requesting a URL How DNS Works Principle of HTTPS Encryption 1. TCP/IP Model Application Layer: Specifies the data format for application programs and handles specific application details. Transport Layer: Specifies ports for specific applications … Read more
1. Architecture The TCP/IP protocol suite is a four-layer protocol system. Figure 1 TCP/IP Architecture Data Link Layer: Implements the network driver for the network interface card, handling the transmission of data over physical media (Ethernet, Token Ring). The network driver abstracts the electrical characteristics of different physical networks. The data link layer uses ARP … Read more
Click on the “Five-Minute Algorithm Learning” above to select the “Star” public account Heavyweight content delivered first-hand From: Juejin, Author: Ruheng Link: https://juejin.im/post/6844903490595061767 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) includes a series of network protocols that form the foundation of the internet and is the core protocol of the Internet. … Read more
This article is about installing OpenWrt on an ESXi system. Preparation OpenWrt Firmware You can choose to download the firmware yourself, which can generally be divided into two categories: one is the custom firmware compiled by various experts, which integrates many pre-installed applications for immediate use; the other is the official original firmware, which only … Read more
Introduction: Ensure your children’s online safety with minimal time and financial investment. Word count: 1573, estimated reading time: 2 minutes https://linux.cn/article-13216-1.htmlAuthor: Daniel OhTranslator: geekpi Parents have been looking for ways to protect their children online, from preventing malware, banner ads, pop-ups, tracking scripts, and other issues, to stopping them from playing games and watching YouTube … Read more
1. Introduction When we visit a website, we usually do so via a URL, such as accessing Baidu through the domain: www.baidu.com. After entering the domain in the browser, the communication ultimately resolves the domain to the corresponding IP address, and communication is conducted at the lower level based on the IP. We don’t need … Read more