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51 lines
1.5 KiB
51 lines
1.5 KiB
# Fail2Ban filter file for named (bind9).
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#
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# This filter blocks attacks against named (bind9) however it requires special
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# configuration on bind.
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#
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# By default, logging is off with bind9 installation.
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#
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# You will need something like this in your named.conf to provide proper logging.
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#
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# logging {
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# channel security_file {
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# file "/var/log/named/security.log" versions 3 size 30m;
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# severity dynamic;
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# print-time yes;
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# };
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# category security {
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# security_file;
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# };
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# };
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[Definition]
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# Daemon name
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_daemon=named
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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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prefregex = ^%(__line_prefix)s(?: error:)?\s*client(?: @\S*)? <HOST>#\S+(?: \([\S.]+\))?: <F-CONTENT>.+</F-CONTENT>\s(?:denied|\(NOTAUTH\))\s*$
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failregex = ^(?:view (?:internal|external): )?query(?: \(cache\))?
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^zone transfer
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^bad zone transfer request: '\S+/IN': non-authoritative zone
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ignoreregex =
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# DEV Notes:
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# 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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