# Fail2Ban fitler for the Proftpd FTP daemon
#
# Set "UseReverseDNS off" in proftpd.conf to avoid the need for DNS.
# See: http://www.proftpd.org/docs/howto/DNS.html
# When the default locale for your system is not en_US.UTF-8
# on Debian-based systems be sure to add this to /etc/default/proftpd
# export LC_TIME="en_US.UTF-8"

[INCLUDES]

before = common.conf

[Definition]

_daemon = proftpd

__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).?


prefregex = ^%(__prefix_line)s%(__hostname)s \(\S+\[<HOST>\]\)[: -]+ <F-CONTENT>(?:USER|SECURITY|Maximum).+</F-CONTENT>$


failregex = ^USER .*: no such user found from \S+ \[\S+\] to \S+:\S+ *$
            ^USER .* \(Login failed\): %(__suffix_failed_login)s\s*$
            ^SECURITY VIOLATION: .* login attempted\. *$
            ^Maximum login attempts \(\d+\) exceeded *$

ignoreregex = 

[Init]
journalmatch = _SYSTEMD_UNIT=proftpd.service

# Author: Yaroslav Halchenko
#         Daniel Black - hardening of regex