| slovo | definícia |
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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screaming tty
(jargon) | screaming tty
n.
[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.
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