glossary:port_number
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glossary:port_number [2009/01/16 14:48] – eechris | glossary:port_number [2011/01/14 12:47] (current) – external edit 127.0.0.1 | ||
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+ | ====== Port Number ====== | ||
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+ | Port numbers identify the each end of a network communication link and are established when the [[client]] opens a [[socket]] to connect to a [[server]]. Each port number must be unique within each host. The server processes for well-known [[application protocol|application protocols]] also have well-known port numbers (so the client can connect to them easily). For example [[HTTP]] uses port 80, [[FTP]] uses port 21 for control and port 20 for data, [[telnet]] uses port 23, [[SMTP]] port 25, etc. Clients will typically be assigned port numbers in the range 1024--65, | ||
+ | ---- | ||
+ | [[Glossary]] : [[glossary# | ||
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