[biernot80]

Doesnt work, on our Server Linux/Deabian
we goes s 23h DDoSed from 24h xD
is installed as the "HowTo" is


what for settings u need to see if all ok?

fail2ban.conf

# Fail2Ban configuration file
#
# Author: Cyril Jaquier
#
# $Revision: 412 $
#

[Definition]

# Option:  loglevel
# Notes.:  Set the log level output.
#          1 = ERROR
#          2 = WARN
#          3 = INFO
#          4 = DEBUG
# Values:  NUM  Default:  3
#
loglevel = 3

# Option:  logtarget
# Notes.:  Set the log target. This could be a file, SYSLOG, STDERR.
# Values:  STDERR SYSLOG file  Default:  /var/log/fail2ban.log
#
logtarget = /var/log/fail2ban.log

# Option: socket
# Notes.: Set the socket file. This is used to communication with the
#         daemon.
# Values: FILE  Default:  /tmp/fail2ban.sock
#
socket = /tmp/fail2ban.sock

jail.conf

# Fail2Ban configuration file.
#
# This file was composed for Debian systems from the original one
#  provided now under /usr/share/doc/fail2ban/examples/jail.conf
#  for additional examples.
#
# To avoid merges during upgrades DO NOT MODIFY THIS FILE
# and rather provide your changes in /etc/fail2ban/jail.local
#
# Author: Yaroslav O. Halchenko <[email protected]>
#
# $Revision: 281 $
#

# The DEFAULT allows a global definition of the options. They can be override
# in each jail afterwards.

[DEFAULT]

# "ignoreip" can be an IP address, a CIDR mask or a DNS host
ignoreip = 127.0.0.1
bantime  = 600
maxretry = 3

# "backend" specifies the backend used to get files modification. Available
# options are "gamin", "polling" and "auto".
# yoh: For some reason Debian shipped python-gamin didn't work as expected
#      This issue left ToDo, so polling is default backend for now
backend = polling

#
# Destination email address used solely for the interpolations in
# jail.{conf,local} configuration files.
destemail = root@localhost

# Default action to take: ban only
action = iptables[name=%(__name__)s, port=%(port)s]

# Following actions can be chosen as an alternatives to the above action.
# To activate, just copy/paste+uncomment chosen 2 (excluding comments) lines
# into jail.local

# Default action to take: ban & send an e-mail with whois report
# to the destemail.
# action = iptables[name=%(__name__)s, port=%(port)s]
#          mail-whois[name=%(__name__)s, dest=%(destemail)s]

# Default action to take: ban & send an e-mail with whois report 
# and relevant log lines to the destemail.
# action = iptables[name=%(__name__)s, port=%(port)s]
#          mail-whois-lines[name=%(__name__)s, dest=%(destemail)s, logpath=%(logpath)s]
 
# Next jails corresponds to the standard configuration in Fail2ban 0.6
# which was shipped in Debian. Please enable any defined here jail by including
#
# [SECTION_NAME]
# enabled = true
#
# in /etc/fail2ban/jail.local.
#

[ssh]

enabled = true
port    = ssh
filter    = sshd
logpath  = /var/log/auth.log
maxretry = 6

#
# HTTP servers
#

[apache]

enabled = true
port    = http
filter    = apache-auth
logpath = /var/log/apache*/*access.log
maxretry = 6


[apache-noscript]

enabled = true
port    = http
filter  = apache-noscript
logpath = /var/log/apache*/*error.log
maxretry = 6

#
# FTP servers
#

[vsftpd]

enabled  = true
port     = ftp
filter   = vsftpd
logpath  = /var/log/auth.log
maxretry = 6


[proftpd]

enabled  = true
port     = ftp
filter   = proftpd
logpath  = /var/log/proftpd/proftpd.log
maxretry = 6


[wuftpd]

enabled  = true
port     = ftp
filter   = wuftpd
logpath  = /var/log/auth.log
maxretry = 6


#
# Mail servers
#

[postfix]

enabled  = true
port     = smtp
filter   = postfix
logpath  = /var/log/postfix.log


[couriersmtp]

enabled  = true
port     = smtp
filter   = couriersmtp
logpath  = /var/log/mail.log


[sasl]

enabled  = true
port     = smtp
filter   = sasl
logpath  = /var/log/mail.log

[ddos]
enabled = true
port      = 27015,27025,27045,27050,27055,28000,29000
protocol = udp
filter = ddos
logpath = /var/log/messages.log
maxretry = 3
bantime = 6000
#action = iptables-multiport[name=ddos, port=27015,27025,27045,27050,27055,28000,29000, protocol=udp]

27015,27025,27045,27050,27055 thats our Counter Strike Source Ports
27015,27045 gets always DDoS

filter.d/ddos.conf

[Definition]

failregex= IPTABLES-FLOOD LENGTH (28|48): IN=eth0 OUT= MAC=[a-zA-F0-9:]+ SRC=<HOST> DST=([0-9]{1,3}\.?){4} LEN=28

zBlock works fine, but we can add it.
we have a Zombieserver and zBlock doesnt work with Zombiemod.
it crash always the server.