翻訳と辞書
Words near each other
・ scpi consortium
・ scram switch
・ scrap
・ scratch
・ scratch disk
・ scratch monkey
・ scratchpad i
・ scratchpad ii
・ scream and die
・ screamer
screaming tty
・ screen
・ screen blanker
・ screen peace
・ screen popping
・ screen reader
・ screen refresh
・ screen saver
・ screen scraper
・ screen server


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screaming tty : FOLDOC
screaming tty
[Unix] A terminal line which spews an infinite number of random characters at the operating system. This can happen if the terminal is either disconnected or connected to a powered-off terminal but still enabled for login; misconfiguration, misimplementation, or simple bad luck can start such a terminal screaming. A screaming tty or two can seriously degrade the performance of a vanilla Unix system; the arriving "characters" are treated as userid/password pairs and tested as such. The Unix password encryption algorithm is designed to be computationally intensive in order to foil brute-force crack attacks, so although none of the logins succeeds; the overhead of rejecting them all can be substantial.
[Jargon File]



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