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Admins warned of brute-force SSH attacks
Robert Lemos, SecurityFocus 2008-05-14

Allowing secure shell access to a server tends to attract the occasional attempt to guess a valid username and password for the service. However, a spike in attacks this week has system administrators worried.

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Admins warned of brute-force SSH attacks 2008-05-15
Anonymous
For the past 2 years, I've used BFD (Brute Force Detection), available here http://www.rfxnetworks.com/downloads/bfd-current.tar.gz

In a nutshell, this is a shell script run via cron that parses log files to detect multiple login attempts within a short period of time that would indicate a brute ...

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