Internet Application Protocols in Java

Painting Code 39 Full ASCII in Java Internet Application Protocols
16 Internet Application Protocols
Generating ANSI/AIM Code 39 In Java
Using Barcode creator for Java Control to generate, create Code-39 image in Java applications.
While network and transport layer protocols are certainly interesting, for network programmers the real excitement lies in the application layer At the application layer are network protocols that do real work, rather than just facilitating communication Here you'll find protocols for accessing and sending e-mail, transferring files, reading Web pages, and much more NOTE Application protocols generally run on a specific port number (also referred to as a well-defined port) However, these services can be configured to run on a nonstandard port (for example, if two Web servers are operating on one machine)
Barcode Printer In Java
Using Barcode maker for Java Control to generate, create barcode image in Java applications.
Some of the more commonly used application protocols are examined below
Bar Code Recognizer In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
161 Telnet
Code-39 Printer In C#
Using Barcode encoder for Visual Studio .NET Control to generate, create Code 3/9 image in VS .NET applications.
Telnet is a service that allows users to open a remote-terminal session to a specific machine This allows Unix users, for example, to access their account from terminal servers or desktop machines Since Unix servers are intended to support multiple users, a telnet session is often used, as only one person can access the machine from the local terminal (using a keyboard and monitor) Telnet allows many users to connect over the network and to access their accounts as if they were doing so locally Telnet services use TCP port 23
ANSI/AIM Code 39 Generator In .NET
Using Barcode drawer for ASP.NET Control to generate, create Code 3/9 image in ASP.NET applications.
162 File Transfer Protocol (FTP)
Code 39 Extended Creation In .NET
Using Barcode maker for .NET framework Control to generate, create Code 39 Extended image in VS .NET applications.
The ability to transfer files is extremely important Even before the World Wide Web, people distributed images, documents, and software using the File Transfer Protocol (FTP) FTP allows a
Code39 Maker In VB.NET
Using Barcode creation for .NET Control to generate, create Code 39 image in .NET framework applications.
user to log in (using a special username and password), or to attempt an anonymous log-in (by using the username of "anonymous") FTP servers will often grant different access permissions depending on the user For example, an anonymous account might be unable to write a file to the server, but may be able to read all files FTP uses two TCP ports for communication port 21 is used to control sessions and port 20 is used for the actual transfer of file contents
Barcode Generator In Java
Using Barcode maker for Java Control to generate, create barcode image in Java applications.
163 Post Office Protocol Version 3 (POP3)
GTIN - 13 Generation In Java
Using Barcode maker for Java Control to generate, create UPC - 13 image in Java applications.
E-mail has become a vital part of modern life With the exception of Web-based e-mail or specialized accounts, the majority of people access their e-mail using the Post Office Protocol, version 3 (POP3), which uses TCP port 110 Messages are stored on a server, retrieved by an email client, and then deleted from the server This allows users to read mail offline, without being connected to the Internet
Barcode Printer In Java
Using Barcode generator for Java Control to generate, create bar code image in Java applications.
164 Internet Message Access Protocol (IMAP)
Bar Code Maker In Java
Using Barcode encoder for Java Control to generate, create barcode image in Java applications.
While many browsers and e-mail clients support only POP3, some also support the Internet Message Access Protocol (IMAP) This protocol is less popular, as it requires a continual connection to the mail server, and thus increases bandwidth consumption and disk usage since messages are not stored on the user's system IMAP allows users to create folders on the mail server, and also allows online searching of mail IMAP uses TCP port 143
USS Code 128 Printer In Java
Using Barcode creation for Java Control to generate, create Code 128 Code Set A image in Java applications.
165 Simple Mail Transfer Protocol (SMTP)
USD - 8 Generation In Java
Using Barcode generation for Java Control to generate, create Code 11 image in Java applications.
The Simple Mail Transfer Protocol allows messages to be delivered over the Internet The separation between retrieving mail and sending mail might be perceived as a bit strange However, separation actually simplifies the process considerably, allowing different mail-retrieval protocols to be used and enabling custom mail accounts SMTP uses TCP port 25
Encode Data Matrix 2d Barcode In VB.NET
Using Barcode encoder for VS .NET Control to generate, create Data Matrix image in VS .NET applications.
166 HyperText Transfer Protocol (HTTP)
Code128 Printer In VB.NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Code 128B image in Visual Studio .NET applications.
HTTP is one of the most popular protocols in use on the Internet today; it made the World Wide Web possible HTTP is an extremely important protocol, and Java includes good HTTP support Detailed information about HTTP and accessing Web resources from Java will be given in 9 HTTP uses TCP port 80
EAN13 Maker In Visual Studio .NET
Using Barcode encoder for ASP.NET Control to generate, create EAN / UCC - 13 image in ASP.NET applications.
16 7 Finger
Barcode Drawer In Visual Basic .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.
Finger is a handy protocol that allows someone to look up a person's account and find out certain information, such as when they last logged in and checked their mail Typically, only Unix servers support finger Unfortunately, many administrators disable finger access for security reasons, and so it is no longer as prevalent as it was Finger uses TCP port 79
Barcode Generator In .NET
Using Barcode printer for VS .NET Control to generate, create bar code image in .NET applications.
168 Network News Transport Protocol (NNTP)
Print UCC-128 In Visual Studio .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create EAN / UCC - 13 image in Visual Studio .NET applications.
The Network News Transport Protocol allows users to access Usenet newsgroups Usenet is a collection of discussion forums on a colorful and diverse number of topics, ranging from political and social commentary, to fan discussions about television programs, movies, and actors, to computing and business Online services such as DejaNews (http://wwwdejanewscom/usenet/) provide a Web-based interface, but newsgroups can also be accessed via newsreader software that uses NNTP NNTP uses TCP port 119
Bar Code Maker In Visual Studio .NET
Using Barcode generation for Visual Studio .NET Control to generate, create bar code image in Visual Studio .NET applications.