By carefully observing, you will find that some websites start with http, while others start with https. Why is there such a difference? What are the distinctions between the two? The internet police will explain: HTTP, also known as Hypertext Transfer Protocol, is a protocol we use daily for browsing the web. It is a … Read more
Every time you open a webpage, many URLs start with “http”, for example: “http://www.snooker.org/”, “http://www.juxingzaixian.com/pc/” However, sometimes when you access high-security websites such as banks, the prefix changes to “https”, for example: https://apply.mcard.boc.cn/apply/pc/index What do these two prefixes mean? What is their purpose? Many users may not be aware of this. Let me explain it … Read more
Basic Concepts HTTP (HyperText Transfer Protocol) is an application layer protocol used for distributed, collaborative, and hypermedia information systems. Simply put, it is a method for publishing and receiving HTML pages, used to transmit information between web browsers and website servers. HTTP operates by default on TCP port 80, and users access standard HTTP services … Read more
Cisco Certification | Huawei Certification | IT Technology | Network Engineer 👇3000-person technical exchange QQ group, note [public account] for faster access In the vast ocean of the Internet, we perform countless data transmissions every day. Whether browsing web pages, downloading files, online shopping, or social interactions, these seemingly simple operations rely on two important … Read more
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
Three Essential Tools for Modbus Learning The three essential tools for learning Modbus are ModbusPoll, ModbusSlave, and VSPD, which can facilitate Modbus debugging. ModbusPoll software is mainly used to simulate a Modbus master station or Modbus client. ModbusSlave software is primarily used to simulate a Modbus slave station or Modbus server. VSPD, which stands for … Read more