post office protocol

I. Runtime Environment Although Microsoft has launched Visual Studio. NET for some time, the. NET Framework SDK is still in beta version, namely Beta 1 and beta 2. There are also great differences between the two versions. For example, many

Traditional mail Transmission protocols include SMTP, POP3, and IMAP:SMTP (Simple Mail Transfer Protocol) The Mail Transfer Agent (MTA) program uses the SMTP protocol to send an email to the recipient's mail server. The SMTP protocol can only be

-- Sendmail MUa (Mail User Agent), which is used to send or read emails from the client. The tool mutt is available in Linux. MTA (Mail tranfer agent) is equivalent to a post office and server-side software. It provides the following functions:

MTU: Maximum Transmission Unit (MTU) refers to the Maximum data packet size (in bytes) that can be passed on a layer of a communication protocol ). The maximum transmission unit parameter is usually related to the communication interface (network

Http https and some common service request default ports(1) common port number of the HTTP Proxy Server: 80/8080/3128/8081/9080(2) SOCKS proxy protocol server port: 1080(3). FTP (file transfer) protocol common port number of proxy server: 21(4)

Hadoop-definitions of Computer Network PortsPort Introduction The ports described in this article are all logical ports, which refer to the ports in the TCP/IP protocol. The port number ranges from 0 to 65535, for example, port 80 used to browse Web

Access Control List (ACL) Access Control List Access token Account lockout account Blocking Account policies Accounting Policy Accounts account Adapter Adaptive speed leveling adaptive speed level adjustment Address Resolution Protocol (ARP) Address

Port 21: Port 21 is mainly used for FTPFile Transfer Protocol and file Transfer Protocol) services.Port 22Ssh service for major users on port 22Port 23Port 23 is mainly used for Telnet remote logon. It is a common logon and simulation program on the

Common mail service protocols: POP3, IMAP, EXCHANGE, and imapexchange Some time ago I did mailbox client development, involving protocol support issues. By the way, I learned several major protocols: Generally, before setting up a mailbox on a

This article first points out the famous open-source email systemQmailIn terms of security, the existing security tools on UNIX systems are used to solve the existing security risks of Qmail, next we introduce a Base91 encoding technology that is

What is TCP/IP? TCP/IP is a communication protocol for computers connected to the Internet. TCP/IP refers to the Transmission Control Protocol/Internet Protocol (Transmission Control Protocol/Internet Protocol ). TCP/IP defines how electronic

1. Install the corresponding compilation tool before installing nginxYum-y install GCC gcc-C ++ Autoconf automakeYum-y install zlib-devel OpenSSL-devel PCRE-devel Create an nginx GroupGroupadd-r nginxUseradd-S/sbin/nologin-G nginx-r nginxId nginx

When LoadRunner purchases, it is bought according to different protocol packages. The following are several protocols of LoadRunner and the specific protocols contained in this Protocol package.1. Network bundleCORBA-Java, domain name resolution

Available! Follow these steps. However, you must change the port number if there are more than two. 1. Download the Tomcat compressed package (not the one installed, which can be directly decompressed): Http://tomcat.apache.org/download-55.cgiThe

1. TCP/IP e-mail Standard (1) Internet Message format (Internet Message format) ---- defines the header used to encapsulate the e-mail text, including the e-mail address of the sender and recipient. (2) Simple Mail Transport Protocol

Direct push --- Great Abstract: The Push Mail business has become increasingly active in China. The popularity of Exchange Server and smart phone PDA has also largely reflected the informatization level of enterprises (companies. This article

Document directory HTTP (Hypertext Transfer Protocol) FTP (file transfer protocol ): Email Service DNS (Domain Name System) TCP three-way handshake TCP broke up four times The application layer protocol defines how application processes in

: Http://www.5dmail.net/down/list.asp? Id = 927 In the deployment section of the Exchange 2000 server upgrade series, you will learn how to implement the previously planned changes. This part of content is very practical. It will step by step lead

WebService and SoapHTTP is only responsible for transmitting the data in the past, not the data is XML, HTML, pictures, text files or anything else. and the SOAP protocol defines how to make an object into XML text, how to call it in a remote way,

In the code development process, we often need to use some network commands, as follows:(1) ipconfig command: Generally used to view our computer's IP address, gateway, subnet mask, DNS and other related information, such as:Ipconfig-all(2) Ping