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53 lines
1.7 KiB
53 lines
1.7 KiB
# Fail2Ban configuration file
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#
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# Author: Francis Russell
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# Zak B. Elep
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#
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#
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# More information: http://bugs.debian.org/546913
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[INCLUDES]
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# Read common prefixes. If any customizations available -- read them from
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# common.local
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before = common.conf
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[Definition]
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_daemon = dropbear
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# Option: failregex
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# Notes.: regex to match the password failures messages in the logfile. The
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# host must be matched by a group named "host". The tag "<HOST>" can
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# be used for standard IP/hostname matching and is only an alias for
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# (?:::f{4,6}:)?(?P<host>\S+)
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# Values: TEXT
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# These match the unmodified dropbear messages. It isn't possible to
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# match the source of the 'exit before auth' messages from dropbear.
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#
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failregex = ^%(__prefix_line)s(L|l)ogin attempt for nonexistent user ('.*' )?from <HOST>:.*\s*$
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^%(__prefix_line)s(B|b)ad password attempt for .+ from <HOST>:.*\s*$
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^%(__prefix_line)sExit before auth \(user '.+', \d+ fails\): Max auth tries reached - user '.+' from <HOST>:\d+\s*$
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# The only line we need to match with the modified dropbear.
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# NOTE: The failregex below is ONLY intended to work with a patched
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# version of Dropbear as described here:
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# http://www.unchartedbackwaters.co.uk/pyblosxom/static/patches
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#
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# The standard Dropbear output doesn't provide enough information to
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# ban all types of attack. The Dropbear patch adds IP address
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# information to the 'exit before auth' message which is always
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# produced for any form of non-successful login. It is that message
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# which this file matches.
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# failregex = ^%(__prefix_line)sexit before auth from <HOST>.*\s*$
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# Option: ignoreregex
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# Notes.: regex to ignore. If this regex matches, the line is ignored.
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# Values: TEXT
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#
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ignoreregex =
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