post office protocol 3

Author: vamei Source: http://www.cnblogs.com/vamei welcome reprint, please also keep this statement. Thank you!   The signal transmission must always meet certain requirements.Protocol). For example, the Great Wall is filled with Wolf smoke

The transmission of the postman and the Post Office (network protocol overview) signals must always comply with certain protocols ). For example, the Great Wall is filled with Wolf smoke because the physical signal of the wolf smoke has been preset

1POP andImap-post Office Protocol andInternet Message Access Protocol2 3 the protocol used to download messages from the SMTP Server.4 5POP-The Post Office Protocol6 by Poplib linked servers,7 example,8 ImportSYS9

  POP3 is called Post Office Protocol version3, that is, Post Office Protocol version 3rd. It is used by the user agent to obtain the mail on the mail server. POP3 uses the C/S communication model, and the corresponding RFC document is RFC1939. This

1. Introduction For smaller nodes on the network, it is impractical to support message transfer systems (MTS). For example, a workstation may not have sufficient resources to allow the SMTP server and equivalent local messaging system to stay in

OSI Reference ModelOSI RM: Open Systems Interconnect Reference Model (open Systeminterconnection Reference Model)The OSI Reference model has the following advantages: Simplifies the related network operation; Provide

1. Determine whether the MX record of the domain name is correctly resolved Enter NSLookup-Qt = mx domain name in the command line For example, the domain name is 365idc.com. Enter NSLookup-Qt = mx 365idc.com to get the following interface. Note

Application layer: (Typical device: application, such as FTP,SMTP, HTTP)The DHCP (Dynamic Host Configuration Protocol) dynamically host assignment protocol, which works with UDP protocol, has two main uses: to automatically assign IP addresses to

Why is there a TCP/IP protocolAll over the world, a wide variety of computers run their own different operating systems for everyone, and these computers are used in many ways when expressing the same message. It is as if God in the Bible has

The concept, model, and Protocol family of TCP/IP Control Protocol/Internet Protocol are abbreviated as Transmission Control Protocol/Internet Protocol, also known as network communication Protocol, it is the most basic protocol of the Internet and