mirror of https://github.com/fail2ban/fail2ban
57 lines
2.3 KiB
Plaintext
57 lines
2.3 KiB
Plaintext
# Fail2Ban configuration file
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#
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# Author: Cyril Jaquier
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#
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#
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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 = sshd
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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>[\w\-.^_]+)
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# Multiline regexs should use tag "<SKIPLINES>" to separate lines.
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# This allows lines between the matching lines to continue to be
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# searched for other failures. This tag can be used multiple times.
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# Values: TEXT
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#
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failregex = ^%(__prefix_line)s(?:error: PAM: )?[aA]uthentication (?:failure|error) for .* from <HOST>( via \S+)?\s*$
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^%(__prefix_line)s(?:error: PAM: )?User not known to the underlying authentication module for .* from <HOST>\s*$
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^%(__prefix_line)sFailed \S+ for .* from <HOST>(?: port \d*)?(?: ssh\d*)?\s*$
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^%(__prefix_line)sROOT LOGIN REFUSED.* FROM <HOST>\s*$
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^%(__prefix_line)s[iI](?:llegal|nvalid) user .* from <HOST>\s*$
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^%(__prefix_line)sUser .+ from <HOST> not allowed because not listed in AllowUsers\s*$
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^%(__prefix_line)sUser .+ from <HOST> not allowed because listed in DenyUsers\s*$
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^%(__prefix_line)sUser .+ from <HOST> not allowed because not in any group\s*$
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^%(__prefix_line)srefused connect from \S+ \(<HOST>\)\s*$
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^%(__prefix_line)sUser .+ from <HOST> not allowed because a group is listed in DenyGroups\s*$
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^%(__prefix_line)sUser .+ from <HOST> not allowed because none of user's groups are listed in AllowGroups\s*$
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^(?P<__prefix>%(__prefix_line)s)User .+ not allowed because account is locked<SKIPLINES>(?P=__prefix)(?:error: )?Received disconnect from <HOST>: 11: Bye Bye \[preauth\]$
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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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[Init]
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# "maxlines" is number of log lines to buffer for multi-line regex searches
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maxlines = 10
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# Option: journalmatch
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# Notes.: systemd journalctl style match filter for journal based backend
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# Values: TEXT
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#
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journalmatch = _SYSTEMD_UNIT=sshd.service + _COMM=sshd
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