TCP/IP 协议

TCP/IP is a large collection of different communication protocols.
TCP/IP是一个包含不同通讯协议的大集合。

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A Family of Protocols
协议群

TCP/IP is a large collection of different communication protocols based upon the two original protocols TCP and IP.
TCP/IP是基于2个原始协议即TCP和IP的基础上建立起来的一个包含不同通讯协议的大集合。

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TCP - Transmission Control Protocol
TCP-传输控制协议Transmission Control Protocol

The TCP protocol is used for the transmission of data from an application to the network.
TCP协议用于将数据从应用程序传输到网络。

TCP is responsible for breaking data down into IP packets before they are sent, and for assembling the packets when they arrive.
在数据被发送之前，TCP会先把它们打散，并将其存入一个个IP信息包；当它们达到指定位置时，再将这些打散后的信息包集合起来。

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IP - Internet Protocol
IP-网际协议Internet Protocol

The IP protocol takes care of the communication with other computers.
IP协议负责与其它电脑进行信息通讯。

IP is responsible for the sending and receiving data packets over the Internet.
IP负责网络中数据包的发送和接收。

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HTTP - Hyper Text Transfer Protocol
HTTP – 超文本传输协议Hyper Text Transfer Protocol

The HTTP protocol takes care of the communication between a web server and a web browser.
HTTP协议负责网络服务器和网络浏览器之间的通讯。

The HTTP protocol is used for sending requests from a web client (a browser) to a web server returning web content (web pages) from the server back to the client.
HTTP协议的作用是将网络客户端（通常为浏览器）的请求发送到web服务器，并将服务器端处理的内容结果（以网页的形式）传回客户端。

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HTTPS - Secure HTTP
HTTPS – HTTP安全协议

The HTTPS protocol takes care of secure communication between a web server and a web browser.
HTTPS协议负责网络服务器与网页浏览器之间的安全通讯。

The HTTPS protocol typically handles credit card transactions and other sensitive data.
HTTPS协议主要处理信用卡交易和一系列的敏感数据。

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SSL - Secure Sockets Layer
SSL – SSL安全通道Secure Sockets Layer

The SSL protocol is used for encryption of data for secure data transmission
SSL协议的作用是将数据进行加密传输，目的是保证安全。

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SMTP - Simple Mail Transfer Protocol
SMTP – 简单邮件传输协议Simple Mail Transfer Protocol

The SMTP protocol is used for the transmission of e-mails.
SMTP协议是用于电子邮件的传输。

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MIME - Multi-purpose Internet Mail Extensions
MIME – 多用途网络邮件扩展Multi-purpose Internet Mail Extensions

The MIME protocol lets SMTP transmit multimedia files including voice, audio, and binary data across TCP/IP networks.
MIME协议让SMTP实现了声音、音频和贯穿于TCP/IP网络的二进制位的多媒体文件的传输。

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IMAP - Internet Message Access Protocol
IMAP – 互联网信息访问协议Internet Message Access Protocol

The IMAP protocol is used for storing and retrieving e-mails.
IMAP协议是用来储存和获取电子邮件的。

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POP - Post Office Protocol
POP – 邮局协议Post Office Protocol

The POP protocol is used for downloading e-mails from an e-mail server to a personal computer.
Pop协议的作用是下载电子邮件，并将其储存到个人的电脑中。

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FTP - File Transfer Protocol
FTP – 文件传输协议File Transfer Protocol

The FTP protocol takes care of the transmission of files between computers.
FTP协议注重电脑之间的文件传输。

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NTP - Network Time Protocol
NTP – 网络时间协议Network Time Protocol

The NTP protocol is used for synchronizing the time (the clock) between computers.
NTP协议是用来实现计算机之间的时间(时钟)同步的。

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DHCP - Dynamic Host Configuration Protocol
DHCP – 动态主机架构协议

The DHCP protocol is used for allocation of dynamic IP addresses to computers in a network.
DHCP协议是用来分配到网络的电脑动态IP地址的。

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SNMP - Simple Network Management Protocol
SNMP – 简单网络管理协议

The SNMP protocol is used for the administration of computer networks.
SNMP协议是用于计算机网络管理的。

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LDAP - Lightweight Directory Access Protocol
LDAP – 互联网目录访问协议Lightweight Directory Access Protocol

The LDAP protocol is used for collecting information about users and e-mail addresses from the Internet.
LDAP协议是用来收集互联网上的用户信息和邮件地址的信息的。

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ICMP - Internet Control Message Protocol
ICMP – 互联网信息控制协议Internet Control Message Protocol

The ICMP protocol takes care of error handling in the network.
ICMP 协议是负责处理互联网错误的。

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ARP - Address Resolution Protocol
ARP –地址解析协议Address Resolution Protocol

The ARP protocol is used by IP to find the hardware address of a computer network card based on the IP address.
ARP协议是用来通过IP来查找建立在IP地址之上的计算机网卡的IP地址。

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RARP - Reverse Address Resolution Protocol
RARP -反向地址解析协议Reverse Address Resolution Protocol

The RARP protocol is used by IP to find the IP address based on the hardware address of a computer network card.
RARP协议是用来通过IP来查找建立在计算机网卡之上的IP地址。

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BOOTP - Boot Protocol
BOOTP –无类型域间选路协议Boot Protocol

The BOOTP protocol is used for booting (starting) computers from the network.
BOOTP协议的作用是通过互联网重起计算机。

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PPTP - Point to Point Tunneling Protocol
PPTP – 点对点通道传输协议Point to Point Tunneling Protocol

The PPTP protocol is used for setting up a connection (tunnel) between private networks.
PPTP 协议的作用是在私人网络中配置一个连接（隧道）。