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| Proxy Ports and Protocols |
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Whenever a computer receives or transmits information, be it a home computer or a server, it does so through an open port that at some point connects to a router, which will then send the information over the internet. Depending on the type of data being processed, certain specific ports are used. In proxy servers, there are several ports that are most commonly used. These protocols communicate with external devices, such as routers, by means of a protocol. Protocols are used in order to allow equipment to communicate with each other and establish how information is sent over the internet. The most common protocol used by proxy ports is TCP – Transmission Control Protocol. TCP is an essential part of any TCP/IP network. While the IP – Internet Protocol – deals with the packets of data that is being transmitted, TCP is in charge of guaranteeing that these packets will be delivered and that they will arrive at their destination in the same order that they were sent through a specific port. Some ports use another type of protocol, which is UDP. Although UDP also establishes communication between ports, is does not guarantee it.Other commonly used protocols are: HTTP – establishes the format in which web browsers and internet sites communicate with each other FTP – establishes formats for file transfers IMAP – determines communication between e-mail servers and their clients SSL Protocol – determines formats used for encrypted communication |
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The World of Communications
Copyright (C) 2006. All right reserved.