在計(jì)算機(jī)網(wǎng)絡(luò)中，服務(wù)器端口是用于區(qū)分不同服務(wù)或應(yīng)用程序的邏輯通道。每個(gè)端口都有一個(gè)唯一的數(shù)字標(biāo)識(shí)，范圍從0到65535。這些端口可以分為三大類(lèi)：知名端口、注冊(cè)端口和動(dòng)態(tài)/私有端口。

  1. 知名端口（Well-Known Ports） 知名端口的范圍是0到1023，通常用于系統(tǒng)級(jí)服務(wù)或廣泛使用的應(yīng)用程序。這些端口由IANA（互聯(lián)網(wǎng)編號(hào)分配機(jī)構(gòu)）統(tǒng)一管理。常見(jiàn)的知名端口包括：
  • 80端口：HTTP協(xié)議，用于網(wǎng)頁(yè)瀏覽。
  • 443端口：HTTPS協(xié)議，用于加密的網(wǎng)頁(yè)瀏覽。
  • 21端口：FTP協(xié)議，用于文件傳輸。
  • 22端口：SSH協(xié)議，用于安全遠(yuǎn)程登錄。
  • 25端口：SMTP協(xié)議，用于電子郵件發(fā)送。
  1. 注冊(cè)端口（Registered Ports） 注冊(cè)端口的范圍是1024到49151，通常用于用戶(hù)級(jí)應(yīng)用程序或特定服務(wù)。這些端口可以由企業(yè)或組織向IANA申請(qǐng)注冊(cè)。常見(jiàn)的注冊(cè)端口包括：
  • 3306端口：MySQL數(shù)據(jù)庫(kù)服務(wù)。
  • 8080端口：HTTP代理或備用網(wǎng)頁(yè)服務(wù)。
  • 3389端口：遠(yuǎn)程桌面協(xié)議（RDP）。
  • 1433端口：Microsoft SQL Server數(shù)據(jù)庫(kù)服務(wù)。
  1. 動(dòng)態(tài)/私有端口（Dynamic/Private Ports） 動(dòng)態(tài)端口的范圍是49152到65535，通常用于臨時(shí)連接或客戶(hù)端應(yīng)用程序。這些端口不會(huì)被固定分配給任何服務(wù)，而是由操作系統(tǒng)動(dòng)態(tài)分配。

英文翻譯： What Ports Are Composed of Server Ports?

In computer networks, server ports are logical channels used to distinguish different services or applications. Each port has a unique numeric identifier, ranging from 0 to 65535. These ports can be divided into three main categories: well-known ports, registered ports, and dynamic/private ports.

  1. Well-Known Ports Well-known ports range from 0 to 1023 and are typically used for system-level services or widely-used applications. These ports are managed by IANA (Internet Assigned Numbers Authority). Common well-known ports include:
  • Port 80: HTTP protocol, used for web browsing.
  • Port 443: HTTPS protocol, used for encrypted web browsing.
  • Port 21: FTP protocol, used for file transfer.
  • Port 22: SSH protocol, used for secure remote login.
  • Port 25: SMTP protocol, used for email sending.
  1. Registered Ports Registered ports range from 1024 to 49151 and are typically used for user-level applications or specific services. These ports can be registered by organizations with IANA. Common registered ports include:
  • Port 3306: MySQL database service.
  • Port 8080: HTTP proxy or alternative web service.
  • Port 3389: Remote Desktop Protocol (RDP).
  • Port 1433: Microsoft SQL Server database service.
  1. Dynamic/Private Ports Dynamic ports range from 49152 to 65535 and are typically used for temporary connections or client applications. These ports are not permanently assigned to any service but are dynamically allocated by the operating system.

通過(guò)了解服務(wù)器端口的分類(lèi)和用途，可以更好地管理和配置網(wǎng)絡(luò)服務(wù)，確保數(shù)據(jù)的安全和高效傳輸。