Internet
The Internet is a global network of computers connected to each other which communicate through a standardized set of protocols.
因特网是一个由相互连接的计算机组成的全球网络,这些计算机通过一套标准化的协议进行通信。
How does the Internet work?
- The internet is a global network of interconnected computers that uses a standard set of communication protocols to exchange data.
- The internet works by connecting devices and computer systems together using standardized protocols, such as IP and TCP.
- The core of the internet is a global network of interconnected routers that direct traffic between different devices and systems.
- Basic concepts and terminology that you need to familiarize yourself with include packets, routers, IP addresses, domain names, DNS, HTTP, HTTPS, and SSL/TLS.
- Protocols play a critical role in enabling communication and data exchange over the internet, allowing devices and systems from different manufacturers and vendors to communicate seamlessly.
What is HTTP
HTTP is the TCP/IP based application layer communication protocol which standardizes how the client and server communicate with each other. HTTP follows a classical “Client-Server model” with a client opening a connection request, then waiting until it receives a response. HTTP is a stateless protocol, that means that the server does not keep any data (state) between two requests.
HTTP是基于TCP/IP的应用层通信协议,它规范了客户端和服务器之间的通信方式。HTTP遵循经典的“客户机-服务器模型”
,客户机打开连接请求,然后等待,直到收到响应。HTTP是一种无状态协议,这意味着服务器在两个请求之间不保留任何数据(状态)。
What is a Domain Name?
A domain name is a unique, easy-to-remember address used to access websites, such as ‘google.com’, and ‘facebook.com’. Users can connect to websites using domain names thanks to the Domain Name System (DNS).
域名是一个独特的,易于记忆的地址,用于访问网站,如“google.com”和“facebook.com”。通过域名系统DNS (domain Name System)
,用户可以通过域名连接到网站。