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well-known port stresses
el.	постоянно связанный в Internet с определённым приложением порт; общеизвестный порт
media.	закреплённый порт (приписанный к определённому сегменту сети во время информационного обмена)
well known port
progr.	стандартный порт (ssn)
English thesaurus
well-known ports
IT	Well-known ports - 0 through 1023: Controlled and assigned by the Internet Assigned Numbers Authority IANA, and on most systems can be used only by system or root processes or by programs executed by privileged users. The assigned ports use the first portion of the possible port numbers. Initially, these assigned ports were in the range 0-255. Currently, the range for assigned ports managed by the IANA has been expanded to the range 0-1023.

well-known port: 3 phrases in 3 subjects

Programming	1
Technology	1
Telecommunications	1