This article mainly reviews common attacks on TCP/IP, aiming to provide at least a basic understanding. Introduction Introduction 1 IP Spoofing What is IP? In a network, every device is assigned an address. This address is like a home address for a person, consisting of a number and a room. The number represents the subnet, … Read more
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Hello everyone, I amAms, Today I will talk about theTCP/IPThree-Way Handshake and Four-Way Teardown Process Analysis A virtual connection is established through a three-way handshake. 1. (Client) > [SYN] > (Server)IfClientandServerare communicating. WhenClientwants to communicate withServer,Clientfirst sends aSYN (Synchronize)marked packet toServerto request a connection.Note: A SYNpacket is a TCP packet with only the SYN flag … 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
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Source: sowhat1412 Author: sowhat1412 1 TCP/IP 1.1 TCP/IP Definition TCP/IP protocol suite is a set of protocols, also known as Internet Protocol Suite. Computers can communicate only by adhering to these rules. TCP and IP are just two of the important protocols, hence the name TCP/IP for this internet protocol suite, which actually includes four … Read more
Why TCP/IP Exists All around the world, various computers running different operating systems serve their purposes. However, the methods they use to express the same information can vary greatly. It’s akin to how God confused the languages of people in the Bible, preventing them from cooperating. Computer users realized that individual computers would not be … 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
Finally, I have come to the TCP protocol, which is the most important and exciting part of TCP/IP detailed explanation, and it requires significant effort to read. Brief Introduction TCP and UDP are at the same layer— the transport layer. However, the most significant difference between TCP and UDP is that TCP provides a reliable … Read more