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# Fail2Ban fitler for the Proftpd FTP daemon
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#
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# Set "UseReverseDNS off" in proftpd.conf to avoid the need for DNS.
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# See: http://www.proftpd.org/docs/howto/DNS.html
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# When the default locale for your system is not en_US.UTF-8
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# on Debian-based systems be sure to add this to /etc/default/proftpd
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# export LC_TIME="en_US.UTF-8"
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[INCLUDES]
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before = common.conf
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[Definition]
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_daemon = proftpd
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__suffix_failed_login = (User not authorized for login|No such user found|Incorrect password|Password expired|Account disabled|Invalid shell: '\S+'|User in \S+|Limit (access|configuration) denies login|Not a UserAlias|maximum login length exceeded).?
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prefregex = ^%(__prefix_line)s%(__hostname)s \(\S+\[<HOST>\]\)[: -]+ <F-CONTENT>(?:USER|SECURITY|Maximum).+</F-CONTENT>$
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failregex = ^USER .*: no such user found from \S+ \[\S+\] to \S+:\S+ *$
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^USER .* \(Login failed\): %(__suffix_failed_login)s\s*$
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^SECURITY VIOLATION: .* login attempted\. *$
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^Maximum login attempts \(\d+\) exceeded *$
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ignoreregex =
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[Init]
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journalmatch = _SYSTEMD_UNIT=proftpd.service
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# Author: Yaroslav Halchenko
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# Daniel Black - hardening of regex
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