post office protocol

Read Catalogue 1. Network Hierarchy Division 2. OSI seven-tier network model 3. IP Address 4. Subnet mask and network partitioning 5. Arp/rarp Agreement 6. Route Selection Protocol 7. TCP/IP protocol 8. UDP

http: is a standard (TCP) for client and server-side requests and responses.The purpose of the HTTP protocol is to provide a way to publish and receive htttp pagesClient-to-server interaction with the HTTP protocol: a request is initiated by an HTTP

This article mainly introduces the Linux under the installation of Nginx compiler tutorial and compilation parameters, the need for friends can refer to the followingFirst, the necessary software preparation1. Installing PcreIn order to support the

Linux Network services --Postfix mail System (i) a,Messaging System Overview1.MTA(mail Transferagent) Mail Transfer agentcommonly referred to as mail server software. the MTA software is responsible for receiving messages sent by the client software

TCP/IP Reference Model and TCP/IP protocolSimilar to the OSI Reference Model, the TCP/IP Reference Model draws on the idea of network layering, simplifies the level of the network, and provides a perfect protocol in each layer of the network, which

This to say with WindowsServer2003 build mail server, in fact, nothing to prepare, Microsoft has helped us to do all the preparation, as long as the mouse, you can complete all the necessary operation. What, listen to the heartbeat? Then follow

Port: 0 Service: Reserved Description: Typically used to analyze the operating system. This approach works because "0" is an invalid port in some systems and will produce different results when you try to connect to it using the usual closed ports.

First, the necessary software preparation1. Install PcreIn order to support the rewrite function, we need to install Pcre Copy Code code as follows: # yum Install pcre*/If you've already installed, please skip this step 2. Install

Mail applications typically come with Windows 8 and Windows RT, but do not support the addition of e-mail accounts that use POP (Post Office Protocol). WIN8E 800 million Web alerts if your e-mail account uses POP and you want to access the account

FTP Service, Web serviceFirst, FTP Overview and build1, FTP is an application layer protocol, using the C/s structure design, in the transport layer using TCP 21 (control connection) and 20 (data connection).2. Build FTP SiteSecond, the Common FTP

background : In the recent development, in order to solve the internal system and external system docking, began to contact the WebService interface, external companies provide interface for us to call, has reached the purpose of data

The slogan identifies the different applications that communicate on a host.1.HTTP protocol Proxy Server Common port number: 80/8080/3128/8081/90982.SOCKS Proxy Protocol Server common port number: 10803.FTP (File Transfer) protocol Proxy Server

MTU: Communication term Maximum Transmission unit (Maximum transmission UNIT,MTU) is the maximum packet size (in bytes) that can be passed on a layer of a communication protocol. Maximum Transmission Unit This parameter is usually related to the

You can use the Python email module to deliver messages with attachments. SMTP (Simple Mail Transfer Protocol)The message transfer agent (mail Transfer AGENT,MTA) program uses the SMTP protocol to send e-mail to the recipient's mail server. The

-- Introduction to Start JavaMail JavaMail is a package that is used to send e-mail, and Java EE (J2ee.jar) contains the package, but if you are using Java SE, you must first download the JavaMail package. Download JavaMail You can search for

Dialog unix: Using Internet "Super Waiter", inetd and xinetd January 06, 2010 16:00 Source: Chinaunix Document Channel Author: send_linux Edit: Zhou Rongmao Level: Intermediate Martin Streicher, software developer, Pixel, Byte, and Comma January 07,

Original address: http://www.moon-soft.com/download/info/2826.htm Port: 0Service: ReservedDescription: Typically used to analyze the operating system. This method works because in some systems "0" is an invalid end, you will have different results

One, what is the port. Before we start talking about ports, let's talk about what port is. Often heard on the network "My host opened a number of port, will not be invaded AH." "or" it would be safer to open that port. Again, my service should

SMTP (Simple Mail Transfer Protocol) The message transfer agent (mail Transfer AGENT,MTA) program uses the SMTP protocol to send e-mail to the recipient's mail server. The SMTP protocol can only be used to send messages and not to receive messages.

POP3 (Post Office Protocol 3), the 3rd version of the Post Office agreement, provides a way to connect a personal computer to a mail server on the Internet and an electronic protocol to download e-mail. It is the first offline protocol standard for