mirror of https://github.com/fail2ban/fail2ban
35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
# Fail2Ban configuration file for named (bind9). Trying to generalize the
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# structure which is general to capture general patterns in log
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# lines to cover different configurations/distributions
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#
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# Author: Yaroslav Halchenko
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#
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# $Revision: 608 $
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#
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[Definition]
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# if you want to catch only login erros from specific daemons, use smth like
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#_named_rcodes=(?:REFUSED|SERVFAIL)
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# To catch all REFUSED queries only
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_named_rcodes=REFUSED
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_daemon=named
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#
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# Shortcuts for easier comprehension of the failregex
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__pid_re=(?:\[\d+\])
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__daemon_re=\(?%(_daemon)s(?:\(\S+\))?\)?:?
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__daemon_combs_re=(?:%(__pid_re)s?:\s+%(__daemon_re)s|%(__daemon_re)s%(__pid_re)s?:)
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# hostname daemon_id spaces
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# this can be optional (for instance if we match named native log files)
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__line_prefix=(?:\s\S+ %(__daemon_combs_re)s\s+)?
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# Option: failregex
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# Notes.: regex to match the password failures messages in the logfile.
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# Values: TEXT
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#
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failregex = %(__line_prefix)sunexpected RCODE \(%(_named_rcodes)s\) resolving '.*': <HOST>#\S+$
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%(__line_prefix)sclient <HOST>#\S+: query(?: \(cache\))? '.*' denied\s*$
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