3

I get a lot of IPs that try probing my sites so I set up a filter to ban them after a few 404 errors.

But something is not working because I get a bunch of these instead:

2017-06-07 01:08:37,175 fail2ban.actions: INFO   [http404] 125.64.94.206 already banned

Here are the setups:

iptables -L -n:

Chain INPUT (policy DROP)
target     prot opt source               destination         
fail2ban-http404  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-default  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-dovecot  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-sasl  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-courierauth  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-postfix  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-apache-overflows  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-apache-noscript  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-apache-multiport  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-apache  all  --  0.0.0.0/0            0.0.0.0/0           
fail2ban-ssh  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-before-logging-input  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-before-input  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-after-input  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-after-logging-input  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-reject-input  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-track-input  all  --  0.0.0.0/0            0.0.0.0/0           

Chain FORWARD (policy DROP)
target     prot opt source               destination         
ufw-before-logging-forward  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-before-forward  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-after-forward  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-after-logging-forward  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-reject-forward  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-track-forward  all  --  0.0.0.0/0            0.0.0.0/0           

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         
ufw-before-logging-output  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-before-output  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-after-output  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-after-logging-output  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-reject-output  all  --  0.0.0.0/0            0.0.0.0/0           
ufw-track-output  all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-apache (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-apache-multiport (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-apache-noscript (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-apache-overflows (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-courierauth (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-default (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-dovecot (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-http404 (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-postfix (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-sasl (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain fail2ban-ssh (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-after-forward (1 references)
target     prot opt source               destination         

Chain ufw-after-input (1 references)
target     prot opt source               destination         
ufw-skip-to-policy-input  udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:137
ufw-skip-to-policy-input  udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:138
ufw-skip-to-policy-input  tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:139
ufw-skip-to-policy-input  tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:445
ufw-skip-to-policy-input  udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:67
ufw-skip-to-policy-input  udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:68
ufw-skip-to-policy-input  all  --  0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type BROADCAST

Chain ufw-after-logging-forward (1 references)
target     prot opt source               destination         
LOG        all  --  0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-after-logging-input (1 references)
target     prot opt source               destination         
LOG        all  --  0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-after-logging-output (1 references)
target     prot opt source               destination         

Chain ufw-after-output (1 references)
target     prot opt source               destination         

Chain ufw-before-forward (1 references)
target     prot opt source               destination         
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 3
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 4
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 11
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 12
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 8
ufw-user-forward  all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-before-input (1 references)
target     prot opt source               destination         
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
ufw-logging-deny  all  --  0.0.0.0/0            0.0.0.0/0            ctstate INVALID
DROP       all  --  0.0.0.0/0            0.0.0.0/0            ctstate INVALID
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 3
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 4
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 11
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 12
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0            icmptype 8
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            udp spt:67 dpt:68
ufw-not-local  all  --  0.0.0.0/0            0.0.0.0/0           
ACCEPT     udp  --  0.0.0.0/0            224.0.0.251          udp dpt:5353
ACCEPT     udp  --  0.0.0.0/0            239.255.255.250      udp dpt:1900
ufw-user-input  all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-before-logging-forward (1 references)
target     prot opt source               destination         

Chain ufw-before-logging-input (1 references)
target     prot opt source               destination         

Chain ufw-before-logging-output (1 references)
target     prot opt source               destination         

Chain ufw-before-output (1 references)
target     prot opt source               destination         
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED
ufw-user-output  all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-logging-allow (0 references)
target     prot opt source               destination         
LOG        all  --  0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW ALLOW] "

Chain ufw-logging-deny (2 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0            ctstate INVALID limit: avg 3/min burst 10
LOG        all  --  0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10 LOG flags 0 level 4 prefix "[UFW BLOCK] "

Chain ufw-not-local (1 references)
target     prot opt source               destination         
RETURN     all  --  0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type LOCAL
RETURN     all  --  0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type MULTICAST
RETURN     all  --  0.0.0.0/0            0.0.0.0/0            ADDRTYPE match dst-type BROADCAST
ufw-logging-deny  all  --  0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 10
DROP       all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-reject-forward (1 references)
target     prot opt source               destination         

Chain ufw-reject-input (1 references)
target     prot opt source               destination         

Chain ufw-reject-output (1 references)
target     prot opt source               destination         

Chain ufw-skip-to-policy-forward (0 references)
target     prot opt source               destination         
DROP       all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-skip-to-policy-input (7 references)
target     prot opt source               destination         
DROP       all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-skip-to-policy-output (0 references)
target     prot opt source               destination         
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-track-forward (1 references)
target     prot opt source               destination         

Chain ufw-track-input (1 references)
target     prot opt source               destination         

Chain ufw-track-output (1 references)
target     prot opt source               destination         
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            ctstate NEW
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            ctstate NEW

Chain ufw-user-forward (1 references)
target     prot opt source               destination         

Chain ufw-user-input (1 references)
target     prot opt source               destination         
           tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:22 ctstate NEW recent: SET name: DEFAULT side: source
ufw-user-limit  tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:22 ctstate NEW recent: UPDATE seconds: 30 hit_count: 6 name: DEFAULT side: source
ufw-user-limit-accept  tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:22
           udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:22 ctstate NEW recent: SET name: DEFAULT side: source
ufw-user-limit  udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:22 ctstate NEW recent: UPDATE seconds: 30 hit_count: 6 name: DEFAULT side: source
ufw-user-limit-accept  udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:22
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:80
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:80
ACCEPT     tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:443
ACCEPT     udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:443
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:25 /* 'dapp_Postfix' */
DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:8080
DROP       udp  --  0.0.0.0/0            0.0.0.0/0            udp dpt:8080
DROP       all  --  2.188.193.21         0.0.0.0/0           
DROP       all  --  65.49.68.154         0.0.0.0/0           

Chain ufw-user-limit (2 references)
target     prot opt source               destination         
LOG        all  --  0.0.0.0/0            0.0.0.0/0            limit: avg 3/min burst 5 LOG flags 0 level 4 prefix "[UFW LIMIT BLOCK] "
REJECT     all  --  0.0.0.0/0            0.0.0.0/0            reject-with icmp-port-unreachable

Chain ufw-user-limit-accept (2 references)
target     prot opt source               destination         
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           

Chain ufw-user-logging-forward (0 references)
target     prot opt source               destination         

Chain ufw-user-logging-input (0 references)
target     prot opt source               destination         

Chain ufw-user-logging-output (0 references)
target     prot opt source               destination         

Chain ufw-user-output (1 references)
target     prot opt source               destination         

jail.conf:

cat 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.
#
# Comments: use '#' for comment lines and ';' for inline comments
#
# To avoid merges during upgrades DO NOT MODIFY THIS FILE
# and rather provide your changes in /etc/fail2ban/jail.local
#

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

[DEFAULT]

# "ignoreip" can be an IP address, a CIDR mask or a DNS host. Fail2ban will not
# ban a host which matches an address in this list. Several addresses can be
# defined using space separator.
ignoreip = 127.0.0.1/8 208.85.207.82

# "bantime" is the number of seconds that a host is banned.
bantime  = 6000

# A host is banned if it has generated "maxretry" during the last "findtime"
# seconds.
findtime = 6000
maxretry = 3

# "backend" specifies the backend used to get files modification.
# Available options are "pyinotify", "gamin", "polling" and "auto".
# This option can be overridden in each jail as well.
#
# pyinotify: requires pyinotify (a file alteration monitor) to be installed.
#            If pyinotify is not installed, Fail2ban will use auto.
# gamin:     requires Gamin (a file alteration monitor) to be installed.
#            If Gamin is not installed, Fail2ban will use auto.
# polling:   uses a polling algorithm which does not require external libraries.
# auto:      will try to use the following backends, in order:
#            pyinotify, gamin, polling.
backend = auto

# "usedns" specifies if jails should trust hostnames in logs,
#   warn when reverse DNS lookups are performed, or ignore all hostnames in logs
#
# yes:   if a hostname is encountered, a reverse DNS lookup will be performed.
# warn:  if a hostname is encountered, a reverse DNS lookup will be performed,
#        but it will be logged as a warning.
# no:    if a hostname is encountered, will not be used for banning,
#        but it will be logged as info.
usedns = warn

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

#
# Name of the sender for mta actions
sendername = Fail2Ban

#
# ACTIONS
#

# Default banning action (e.g. iptables, iptables-new,
# iptables-multiport, shorewall, etc) It is used to define
# action_* variables. Can be overridden globally or per
# section within jail.local file
banaction = iptables-allports

# email action. Since 0.8.1 upstream fail2ban uses sendmail
# MTA for the mailing. Change mta configuration parameter to mail
# if you want to revert to conventional 'mail'.
mta = sendmail

# Default protocol
protocol = all

# Specify chain where jumps would need to be added in iptables-* actions
chain = INPUT

#
# Action shortcuts. To be used to define action parameter

# The simplest action to take: ban only
action_ = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]

# ban & send an e-mail with whois report to the destemail.
action_mw = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
              %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s", protocol="%(protocol)s", chain="%(chain)s", sendername="%(sendername)s"]

# ban & send an e-mail with whois report and relevant log lines
# to the destemail.
action_mwl = %(banaction)s[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"]
               %(mta)s-whois-lines[name=%(__name__)s, dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s", sendername="%(sendername)s"]

# Choose default action.  To change, just override value of 'action' with the
# interpolation to the chosen action shortcut (e.g.  action_mw, action_mwl, etc) in jail.local
# globally (section [DEFAULT]) or per specific section
action = %(action_)s

#
# JAILS
#

# Next jails corresponds to the standard configuration in Fail2ban 0.6 which
# was shipped in Debian. Enable any defined here jail by including
#
# [SECTION_NAME]
# enabled = true

#
# in /etc/fail2ban/jail.local.
#
# Optionally you may override any other parameter (e.g. banaction,
# action, port, logpath, etc) in that section within jail.local

[ssh]

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

[dropbear]

enabled  = false
port     = ssh
filter   = dropbear
logpath  = /var/log/auth.log
maxretry = 6

# Generic filter for pam. Has to be used with action which bans all ports
# such as iptables-allports, shorewall
[pam-generic]

enabled  = false
# pam-generic filter can be customized to monitor specific subset of 'tty's
filter   = pam-generic
# port actually must be irrelevant but lets leave it all for some possible uses
port     = all
banaction = iptables-allports
port     = anyport
logpath  = /var/log/auth.log
maxretry = 6

[xinetd-fail]

enabled   = false
filter    = xinetd-fail
port      = all
banaction = iptables-multiport-log
logpath   = /var/log/daemon.log
maxretry  = 2


[ssh-ddos]

enabled  = false
port     = ssh
filter   = sshd-ddos
logpath  = /var/log/auth.log
maxretry = 6


# Here we use blackhole routes for not requiring any additional kernel support
# to store large volumes of banned IPs

[ssh-route]

enabled = false
filter = sshd
action = route
logpath = /var/log/sshd.log
maxretry = 6

# Here we use a combination of Netfilter/Iptables and IPsets
# for storing large volumes of banned IPs
#
# IPset comes in two versions. See ipset -V for which one to use
# requires the ipset package and kernel support.
[ssh-iptables-ipset4]

enabled  = false
port     = ssh
filter   = sshd
banaction = iptables-ipset-proto4
logpath  = /var/log/sshd.log
maxretry = 6

[ssh-iptables-ipset6]

enabled  = false
port     = ssh
filter   = sshd
banaction = iptables-ipset-proto6
logpath  = /var/log/sshd.log
maxretry = 6


#
# HTTP servers
#

[apache]

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

# default action is now multiport, so apache-multiport jail was left
# for compatibility with previous (<0.7.6-2) releases
[apache-multiport]

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

[apache-noscript]

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

[apache-overflows]

enabled  = true
port     = http,https
filter   = apache-overflows
logpath  = /var/log/apache*/*error.log
maxretry = 2

# Ban attackers that try to use PHP's URL-fopen() functionality
# through GET/POST variables. - Experimental, with more than a year
# of usage in production environments.

[php-url-fopen]

enabled = false
port    = http,https
filter  = php-url-fopen
logpath = /var/www/*/logs/access_log

# A simple PHP-fastcgi jail which works with lighttpd.
# If you run a lighttpd server, then you probably will
# find these kinds of messages in your error_log:
#   ALERT – tried to register forbidden variable ‘GLOBALS’
#   through GET variables (attacker '1.2.3.4', file '/var/www/default/htdocs/index.php')

[lighttpd-fastcgi]

enabled = false
port    = http,https
filter  = lighttpd-fastcgi
logpath = /var/log/lighttpd/error.log

# Same as above for mod_auth
# It catches wrong authentifications

[lighttpd-auth]

enabled = false
port    = http,https
filter  = suhosin
logpath = /var/log/lighttpd/error.log

[nginx-http-auth]

enabled = false
filter  = nginx-http-auth
port    = http,https
logpath = /var/log/nginx/error.log

# Monitor roundcube server

[roundcube-auth]

enabled  = false
filter   = roundcube-auth
port     = http,https
logpath  = /var/log/roundcube/userlogins


[sogo-auth]

enabled  = false
filter   = sogo-auth
port     = http, https
# without proxy this would be:
# port    = 20000
logpath  = /var/log/sogo/sogo.log


#
# FTP servers
#

[vsftpd]

enabled  = false
port     = ftp,ftp-data,ftps,ftps-data
filter   = vsftpd
logpath  = /var/log/vsftpd.log
# or overwrite it in jails.local to be
# logpath = /var/log/auth.log
# if you want to rely on PAM failed login attempts
# vsftpd's failregex should match both of those formats
maxretry = 6


[proftpd]

enabled  = false
port     = ftp,ftp-data,ftps,ftps-data
filter   = proftpd
logpath  = /var/log/proftpd/proftpd.log
maxretry = 6


[pure-ftpd]

enabled  = false
port     = ftp,ftp-data,ftps,ftps-data
filter   = pure-ftpd
logpath  = /var/log/syslog
maxretry = 6


[wuftpd]

enabled  = false
port     = ftp,ftp-data,ftps,ftps-data
filter   = wuftpd
logpath  = /var/log/syslog
maxretry = 6


#
# Mail servers
#

[postfix]

enabled  = true
port     = smtp,ssmtp,submission
filter   = postfix
logpath  = /var/log/mail.log


[couriersmtp]

enabled  = false
port     = smtp,ssmtp,submission
filter   = couriersmtp
logpath  = /var/log/mail.log


#
# Mail servers authenticators: might be used for smtp,ftp,imap servers, so
# all relevant ports get banned
#

[courierauth]

enabled  = true
port     = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
filter   = courierlogin
logpath  = /var/log/mail.log


[sasl]

enabled  = true
port     = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
filter   = postfix-sasl
# You might consider monitoring /var/log/mail.warn instead if you are
# running postfix since it would provide the same log lines at the
# "warn" level but overall at the smaller filesize.
logpath  = /var/log/mail.log

[dovecot]

enabled = true
port    = smtp,ssmtp,submission,imap2,imap3,imaps,pop3,pop3s
filter  = dovecot
logpath = /var/log/mail.log

# To log wrong MySQL access attempts add to /etc/my.cnf:
# log-error=/var/log/mysqld.log
# log-warning = 2
[mysqld-auth]

enabled  = false
filter   = mysqld-auth
port     = 3306
logpath  = /var/log/mysqld.log


# DNS Servers


# These jails block attacks against named (bind9). By default, logging is off
# with bind9 installation. You will need something like this:
#
# logging {
#     channel security_file {
#         file "/var/log/named/security.log" versions 3 size 30m;
#         severity dynamic;
#         print-time yes;
#     };
#     category security {
#         security_file;
#     };
# };
#
# in your named.conf to provide proper logging

# !!! WARNING !!!
#   Since UDP is connection-less protocol, spoofing of IP and imitation
#   of illegal actions is way too simple.  Thus enabling of this filter
#   might provide an easy way for implementing a DoS against a chosen
#   victim. See
#    http://nion.modprobe.de/blog/archives/690-fail2ban-+-dns-fail.html
#   Please DO NOT USE this jail unless you know what you are doing.
#[named-refused-udp]
#
#enabled  = false
#port     = domain,953
#protocol = udp
#filter   = named-refused
#logpath  = /var/log/named/security.log

[named-refused-tcp]

enabled  = false
port     = domain,953
protocol = tcp
filter   = named-refused
logpath  = /var/log/named/security.log

# Multiple jails, 1 per protocol, are necessary ATM:
# see https://github.com/fail2ban/fail2ban/issues/37
[asterisk-tcp]

enabled  = false
filter   = asterisk
port     = 5060,5061
protocol = tcp
logpath  = /var/log/asterisk/messages

[asterisk-udp]

enabled  = false
filter   = asterisk
port     = 5060,5061
protocol = udp
logpath  = /var/log/asterisk/messages


# Jail for more extended banning of persistent abusers
# !!! WARNING !!!
#   Make sure that your loglevel specified in fail2ban.conf/.local
#   is not at DEBUG level -- which might then cause fail2ban to fall into
#   an infinite loop constantly feeding itself with non-informative lines
[recidive]

enabled  = false
filter   = recidive
logpath  = /var/log/fail2ban.log
action   = iptables-allports[name=recidive]
           sendmail-whois-lines[name=recidive, logpath=/var/log/fail2ban.log]
bantime  = 604800  ; 1 week
findtime = 86400   ; 1 day
maxretry = 5


[wp-auth]
enabled = true  
port = http,https,ssh
filter = wp-auth  
#action = iptables-multiport[name=NoAuthFailures, port="http,https"]  
action = iptables-allports
logpath = /var/log/apache2/other_vhosts_access.log
bantime = 12000  
maxretry = 8 


[http404]
enabled = true
port = http,https
filter = http404
#action = iptables-multiport[name=NoAuthFailures, port="http,https"]
#action = iptables-allports
logpath = /var/log/apache2/other_vhosts_access.log
bantime = 300
maxretry = 8

http404.conf:

[Definition]
#failregex = <HOST> - - .*HTTP/1.1" 404
failregex = .*:80 <HOST> .* HTTP/1.1" 404
ignoreregex =

Can you find the problem?

  • Is it your intention to have the action commented out in [http404]? – Timothy Martin Jun 8 '17 at 18:49
  • Well the default is iptables-allports so I guess it doesn't matter. – Sam Jun 8 '17 at 20:02
  • I do not know if it makes a difference but all the fail2ban documentation I found shows ignoreregex =. Could it be as simple as the missing =? – Timothy Martin Jun 8 '17 at 20:32
  • my bad! I just checked and the last line is "ignoreregex = " I guess I just missed it in the copy/paste to here. Fixed it above – Sam Jun 8 '17 at 21:41

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