From eb12b8b347efa62a0324a91699204a7cc3eb3a20 Mon Sep 17 00:00:00 2001 From: Tanguy MAZE Date: Sun, 6 Jan 2019 14:23:39 +0100 Subject: [PATCH] added port scan protection firewall rules --- files/firewall.conf | 90 ++--- files/jail.local | 832 -------------------------------------------- 2 files changed, 49 insertions(+), 873 deletions(-) diff --git a/files/firewall.conf b/files/firewall.conf index af6aedb..f04ce42 100644 --- a/files/firewall.conf +++ b/files/firewall.conf @@ -1,56 +1,64 @@ -# Generated by iptables-save v1.6.0 on Mon Dec 10 17:46:32 2018 -*mangle -:PREROUTING ACCEPT [356:24388] -:INPUT ACCEPT [356:24388] -:FORWARD ACCEPT [0:0] -:OUTPUT ACCEPT [246:65684] -:POSTROUTING ACCEPT [246:65684] --A PREROUTING -p icmp -j DROP --A PREROUTING -m conntrack --ctstate INVALID -j DROP --A PREROUTING -p tcp ! --syn -m conntrack --ctstate NEW -j DROP --A PREROUTING -f -j DROP --A PREROUTING -p tcp -m conntrack --ctstate NEW -m tcpmss ! --mss 536:65535 -j DROP --A PREROUTING -s 127.0.0.0/8 ! -i lo -j DROP --A PREROUTING -s 192.168.99.0/30 ! -i enp0s8 -j DROP --A PREROUTING -p tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP --A PREROUTING -p tcp --tcp-flags FIN,SYN FIN,SYN -j DROP --A PREROUTING -p tcp --tcp-flags SYN,RST SYN,RST -j DROP --A PREROUTING -p tcp --tcp-flags FIN,RST FIN,RST -j DROP --A PREROUTING -p tcp --tcp-flags FIN,ACK FIN -j DROP --A PREROUTING -p tcp --tcp-flags ACK,URG URG -j DROP --A PREROUTING -p tcp --tcp-flags ACK,FIN FIN -j DROP --A PREROUTING -p tcp --tcp-flags ACK,PSH PSH -j DROP --A PREROUTING -p tcp --tcp-flags ALL ALL -j DROP --A PREROUTING -p tcp --tcp-flags ALL NONE -j DROP --A PREROUTING -p tcp --tcp-flags ALL FIN,PSH,URG -j DROP --A PREROUTING -p tcp --tcp-flags ALL SYN,FIN,PSH,URG -j DROP --A PREROUTING -p tcp --tcp-flags ALL SYN,RST,ACK,FIN,URG -j DROP +# Generated by iptables-save v1.6.0 on Sun Jan 6 13:34:57 2019 +*raw +:PREROUTING ACCEPT [0:0] +:OUTPUT ACCEPT [8:590] COMMIT -# Completed on Mon Dec 10 17:46:32 2018 -# Generated by iptables-save v1.6.0 on Sat Nov 17 14:32:27 2018 +# Completed on Sun Jan 6 13:34:57 2019 +# Generated by iptables-save v1.6.0 on Sun Jan 6 13:34:57 2019 *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] -:OUTPUT DROP [0:0] --A INPUT -p tcp -m connlimit --connlimit-above 40 -j REJECT --reject-with tcp-reset --A INPUT -p tcp -m conntrack --ctstate NEW -m limit --limit 60/s --limit-burst 10 -j ACCEPT +:OUTPUT DROP [32:2432] +-A INPUT -p tcp -m multiport --dports 22,80,443 -m tcp -m state --state INVALID,UNTRACKED -j SYNPROXY --sack-perm --timestamp --wscale 7 --mss 1460 +-A INPUT -p tcp -m multiport --dports 22,80,443 -m tcp -m state --state INVALID -j DROP +-A INPUT -p tcp -m connlimit --connlimit-above 40 --connlimit-mask 32 --connlimit-saddr -j REJECT --reject-with tcp-reset +-A INPUT -p tcp -m conntrack --ctstate NEW -m limit --limit 60/sec --limit-burst 10 -j ACCEPT -A INPUT -p tcp -m conntrack --ctstate NEW -j DROP --A INPUT -p tcp -m tcp -m conntrack --ctstate INVALID,UNTRACKED -j SYNPROXY --sack-perm --timestamp --wscale 7 --mss 1460 +-A INPUT -p tcp -m tcp -m conntrack --ctstate INVALID,UNTRACKED -j SYNPROXY --sack-perm --timestamp --wscale 7 --mss 1460 -A INPUT -m conntrack --ctstate INVALID -j DROP -A INPUT -p tcp -m tcp --dport 2230 -j ACCEPT --A INPUT -p tcp --dport 80 -j ACCEPT --A INPUT -p tcp --dport 443 -j ACCEPT +-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT +-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT -A INPUT -p tcp -m tcp --sport 80 -m conntrack --ctstate ESTABLISHED -j ACCEPT -A INPUT -p tcp -m tcp --sport 443 -m conntrack --ctstate ESTABLISHED -j ACCEPT -A INPUT -p udp -m udp --sport 53 -m conntrack --ctstate ESTABLISHED -j ACCEPT -A OUTPUT -p tcp -m tcp --sport 2230 -j ACCEPT --A OUTPUT -p tcp --sport 80 -j ACCEPT --A OUTPUT -p tcp --sport 443 -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 80 -j ACCEPT +-A OUTPUT -p tcp -m tcp --sport 443 -j ACCEPT -A OUTPUT -p tcp -m tcp --dport 80 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT -A OUTPUT -p tcp -m tcp --dport 443 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT -A OUTPUT -p udp -m udp --dport 53 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT --N port-scanning --A port-scanning -p tcp --tcp-flags SYN,ACK,FIN,RST RST -m limit --limit 1/s --limit-burst 2 -j RETURN --A port-scanning -j DROP +-A INPUT -m recent --rcheck --seconds 86400 --name portscan --mask 255.255.255.255 --rsource -j DROP +-A INPUT -m recent --remove --name portscan --mask 255.255.255.255 --rsource +-A INPUT -p tcp -m multiport --dports 25,445,1433,3389 -m recent --set --name portscan --mask 255.255.255.255 --rsource -j DROP COMMIT -# Completed on Sat Nov 17 14:32:27 2018 \ No newline at end of file +# Completed on Sun Jan 6 13:34:57 2019 +# Generated by iptables-save v1.6.0 on Sun Jan 6 13:34:57 2019 +*mangle +:PREROUTING ACCEPT [63:103118] +:INPUT ACCEPT [63:103118] +:FORWARD ACCEPT [0:0] +:OUTPUT ACCEPT [100:6885] +:POSTROUTING ACCEPT [68:4453] +-A PREROUTING -p icmp -j DROP +-A PREROUTING -m conntrack --ctstate INVALID -j DROP +-A PREROUTING -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m conntrack --ctstate NEW -j DROP +-A PREROUTING -f -j DROP +-A PREROUTING -p tcp -m conntrack --ctstate NEW -m tcpmss ! --mss 536:65535 -j DROP +-A PREROUTING -s 127.0.0.0/8 ! -i lo -j DROP +-A PREROUTING -s 192.168.99.0/30 ! -i enp0s8 -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN FIN,SYN -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags SYN,RST SYN,RST -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,RST FIN,RST -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,ACK FIN -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags ACK,URG URG -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,ACK FIN -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags PSH,ACK PSH -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,PSH,ACK,URG -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,PSH,URG -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,PSH,URG -j DROP +-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG FIN,SYN,RST,ACK,URG -j DROP +COMMIT +# Completed on Sun Jan 6 13:34:57 2019 diff --git a/files/jail.local b/files/jail.local index 5df37a3..b85f743 100644 --- a/files/jail.local +++ b/files/jail.local @@ -1,218 +1,3 @@ -# -# WARNING: heavily refactored in 0.9.0 release. Please review and -# customize settings for your setup. -# -# Changes: in most of the cases you should not modify this -# file, but provide customizations in jail.local file, -# or separate .conf files under jail.d/ directory, e.g.: -# -# HOW TO ACTIVATE JAILS: -# -# YOU SHOULD NOT MODIFY THIS FILE. -# -# It will probably be overwritten or improved in a distribution update. -# -# Provide customizations in a jail.local file or a jail.d/customisation.local. -# For example to change the default bantime for all jails and to enable the -# ssh-iptables jail the following (uncommented) would appear in the .local file. -# See man 5 jail.conf for details. -# -# [DEFAULT] -# bantime = 3600 -# -# [sshd] -# enabled = true -# -# See jail.conf(5) man page for more information - - - -# Comments: use '#' for comment lines and ';' (following a space) for inline comments - - -[INCLUDES] - -#before = paths-distro.conf -before = paths-debian.conf - -# The DEFAULT allows a global definition of the options. They can be overridden -# in each jail afterwards. - -[DEFAULT] - -# -# MISCELLANEOUS OPTIONS -# - -# "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 (and/or comma) separator. -ignoreip = 127.0.0.1/8 - -# External command that will take an tagged arguments to ignore, e.g. , -# and return true if the IP is to be ignored. False otherwise. -# -# ignorecommand = /path/to/command -ignorecommand = - -# "bantime" is the number of seconds that a host is banned. -bantime = 86400 - -# A host is banned if it has generated "maxretry" during the last "findtime" -# seconds. -findtime = 600 - -# "maxretry" is the number of failures before a host get banned. -maxretry = 5 - -# "backend" specifies the backend used to get files modification. -# Available options are "pyinotify", "gamin", "polling", "systemd" 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. -# systemd: uses systemd python library to access the systemd journal. -# Specifying "logpath" is not valid for this backend. -# See "journalmatch" in the jails associated filter config -# auto: will try to use the following backends, in order: -# pyinotify, gamin, polling. -# -# Note: if systemd backend is chosen as the default but you enable a jail -# for which logs are present only in its own log files, specify some other -# backend for that jail (e.g. polling) and provide empty value for -# journalmatch. See https://github.com/fail2ban/fail2ban/issues/959#issuecomment-74901200 -backend = auto - -# "usedns" specifies if jails should trust hostnames in logs, -# warn when DNS lookups are performed, or ignore all hostnames in logs -# -# yes: if a hostname is encountered, a DNS lookup will be performed. -# warn: if a hostname is encountered, a 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. -# raw: use raw value (no hostname), allow use it for no-host filters/actions (example user) -usedns = warn - -# "logencoding" specifies the encoding of the log files handled by the jail -# This is used to decode the lines from the log file. -# Typical examples: "ascii", "utf-8" -# -# auto: will use the system locale setting -logencoding = auto - -# "enabled" enables the jails. -# By default all jails are disabled, and it should stay this way. -# Enable only relevant to your setup jails in your .local or jail.d/*.conf -# -# true: jail will be enabled and log files will get monitored for changes -# false: jail is not enabled -enabled = false - - -# "filter" defines the filter to use by the jail. -# By default jails have names matching their filter name -# -filter = %(__name__)s - - -# -# ACTIONS -# - -# Some options used for actions - -# Destination email address used solely for the interpolations in -# jail.{conf,local,d/*} configuration files. -destemail = root@localhost - -# Sender email address used solely for some actions -sender = root@localhost - -# E-mail action. Since 0.8.1 Fail2Ban uses sendmail MTA for the -# mailing. Change mta configuration parameter to mail if you want to -# revert to conventional 'mail'. -mta = mail - -# Default protocol -protocol = tcp - -# Specify chain where jumps would need to be added in iptables-* actions -chain = INPUT - -# Ports to be banned -# Usually should be overridden in a particular jail -port = 0:65535 - -# Format of user-agent https://tools.ietf.org/html/rfc7231#section-5.5.3 -fail2ban_agent = Fail2Ban/%(fail2ban_version)s - -# -# Action shortcuts. To be used to define action parameter - -# 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-multiport -banaction_allports = iptables-allports - -# The simplest action to take: ban only -action_ = %(banaction)s[name=%(__name__)s, bantime="%(bantime)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, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] - %(mta)s-whois[name=%(__name__)s, sender="%(sender)s", dest="%(destemail)s", protocol="%(protocol)s", chain="%(chain)s"] - -# ban & send an e-mail with whois report and relevant log lines -# to the destemail. -action_mwl = %(banaction)s[name=%(__name__)s, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] - %(mta)s-whois-lines[name=%(__name__)s, sender="%(sender)s", dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s"] - -# See the IMPORTANT note in action.d/xarf-login-attack for when to use this action -# -# ban & send a xarf e-mail to abuse contact of IP address and include relevant log lines -# to the destemail. -action_xarf = %(banaction)s[name=%(__name__)s, bantime="%(bantime)s", port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"] - xarf-login-attack[service=%(__name__)s, sender="%(sender)s", logpath=%(logpath)s, port="%(port)s"] - -# ban IP on CloudFlare & send an e-mail with whois report and relevant log lines -# to the destemail. -action_cf_mwl = cloudflare[cfuser="%(cfemail)s", cftoken="%(cfapikey)s"] - %(mta)s-whois-lines[name=%(__name__)s, sender="%(sender)s", dest="%(destemail)s", logpath=%(logpath)s, chain="%(chain)s"] - -# Report block via blocklist.de fail2ban reporting service API -# -# See the IMPORTANT note in action.d/blocklist_de.conf for when to -# use this action. Create a file jail.d/blocklist_de.local containing -# [Init] -# blocklist_de_apikey = {api key from registration] -# -action_blocklist_de = blocklist_de[email="%(sender)s", service=%(filter)s, apikey="%(blocklist_de_apikey)s", agent="%(fail2ban_agent)s"] - -# Report ban via badips.com, and use as blacklist -# -# See BadIPsAction docstring in config/action.d/badips.py for -# documentation for this action. -# -# NOTE: This action relies on banaction being present on start and therefore -# should be last action defined for a jail. -# -action_badips = badips.py[category="%(__name__)s", banaction="%(banaction)s", agent="%(fail2ban_agent)s"] -# -# Report ban via badips.com (uses action.d/badips.conf for reporting only) -# -action_badips_report = badips[category="%(__name__)s", agent="%(fail2ban_agent)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 # @@ -223,33 +8,9 @@ action = %(action_)s [sshd] enabled = true -port = 2230 -logpath = %(sshd_log)s -backend = %(sshd_backend)s - [sshd-ddos] -# This jail corresponds to the standard configuration in Fail2ban. -# The mail-whois action send a notification e-mail with a whois request -# in the body. enabled = false -port = 2230 -logpath = %(sshd_log)s -backend = %(sshd_backend)s - - -[dropbear] - -port = ssh -logpath = %(dropbear_log)s -backend = %(dropbear_backend)s - - -[selinux-ssh] - -port = ssh -logpath = %(auditd_log)s - # # HTTP servers @@ -257,601 +18,8 @@ logpath = %(auditd_log)s [apache-auth] enabled = true -port = http,https -logpath = %(apache_error_log)s - [apache-badbots] # Ban hosts which agent identifies spammer robots crawling the web # for email addresses. The mail outputs are buffered. enabled = true -port = http,https -logpath = %(apache_access_log)s -bantime = 172800 -maxretry = 1 - - -[apache-noscript] - -port = http,https -logpath = %(apache_error_log)s - - -[apache-overflows] - -port = http,https -logpath = %(apache_error_log)s -maxretry = 2 - - -[apache-nohome] - -port = http,https -logpath = %(apache_error_log)s -maxretry = 2 - - -[apache-botsearch] - -port = http,https -logpath = %(apache_error_log)s -maxretry = 2 - - -[apache-fakegooglebot] - -port = http,https -logpath = %(apache_access_log)s -maxretry = 1 -ignorecommand = %(ignorecommands_dir)s/apache-fakegooglebot - - -[apache-modsecurity] - -port = http,https -logpath = %(apache_error_log)s -maxretry = 2 - - -[apache-shellshock] - -port = http,https -logpath = %(apache_error_log)s -maxretry = 1 - - -[openhab-auth] - -filter = openhab -action = iptables-allports[name=NoAuthFailures] -logpath = /opt/openhab/logs/request.log - - -[nginx-http-auth] - -port = http,https -logpath = %(nginx_error_log)s - -# To use 'nginx-limit-req' jail you should have `ngx_http_limit_req_module` -# and define `limit_req` and `limit_req_zone` as described in nginx documentation -# http://nginx.org/en/docs/http/ngx_http_limit_req_module.html -# or for example see in 'config/filter.d/nginx-limit-req.conf' -[nginx-limit-req] -port = http,https -logpath = %(nginx_error_log)s - -[nginx-botsearch] - -port = http,https -logpath = %(nginx_error_log)s -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] - -port = http,https -logpath = %(nginx_access_log)s - %(apache_access_log)s - - -[suhosin] - -port = http,https -logpath = %(suhosin_log)s - - -[lighttpd-auth] -# Same as above for Apache's mod_auth -# It catches wrong authentifications -port = http,https -logpath = %(lighttpd_error_log)s - - -# -# Webmail and groupware servers -# - -[roundcube-auth] - -port = http,https -logpath = %(roundcube_errors_log)s - - -[openwebmail] - -port = http,https -logpath = /var/log/openwebmail.log - - -[horde] - -port = http,https -logpath = /var/log/horde/horde.log - - -[groupoffice] - -port = http,https -logpath = /home/groupoffice/log/info.log - - -[sogo-auth] -# Monitor SOGo groupware server -# without proxy this would be: -# port = 20000 -port = http,https -logpath = /var/log/sogo/sogo.log - - -[tine20] - -logpath = /var/log/tine20/tine20.log -port = http,https - - -# -# Web Applications -# -# - -[drupal-auth] - -port = http,https -logpath = %(syslog_daemon)s -backend = %(syslog_backend)s - -[guacamole] - -port = http,https -logpath = /var/log/tomcat*/catalina.out - -[monit] -#Ban clients brute-forcing the monit gui login -port = 2812 -logpath = /var/log/monit - - -[webmin-auth] - -port = 10000 -logpath = %(syslog_authpriv)s -backend = %(syslog_backend)s - - -[froxlor-auth] - -port = http,https -logpath = %(syslog_authpriv)s -backend = %(syslog_backend)s - - -# -# HTTP Proxy servers -# -# - -[squid] - -port = 80,443,3128,8080 -logpath = /var/log/squid/access.log - - -[3proxy] - -port = 3128 -logpath = /var/log/3proxy.log - - -# -# FTP servers -# - - -[proftpd] - -port = ftp,ftp-data,ftps,ftps-data -logpath = %(proftpd_log)s -backend = %(proftpd_backend)s - - -[pure-ftpd] - -port = ftp,ftp-data,ftps,ftps-data -logpath = %(pureftpd_log)s -backend = %(pureftpd_backend)s - - -[gssftpd] - -port = ftp,ftp-data,ftps,ftps-data -logpath = %(syslog_daemon)s -backend = %(syslog_backend)s - - -[wuftpd] - -port = ftp,ftp-data,ftps,ftps-data -logpath = %(wuftpd_log)s -backend = %(wuftpd_backend)s - - -[vsftpd] -# or overwrite it in jails.local to be -# logpath = %(syslog_authpriv)s -# if you want to rely on PAM failed login attempts -# vsftpd's failregex should match both of those formats -port = ftp,ftp-data,ftps,ftps-data -logpath = %(vsftpd_log)s - - -# -# Mail servers -# - -# ASSP SMTP Proxy Jail -[assp] - -port = smtp,465,submission -logpath = /root/path/to/assp/logs/maillog.txt - - -[courier-smtp] - -port = smtp,465,submission -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -[postfix] - -port = smtp,465,submission -logpath = %(postfix_log)s -backend = %(postfix_backend)s - - -[postfix-rbl] - -port = smtp,465,submission -logpath = %(postfix_log)s -backend = %(postfix_backend)s -maxretry = 1 - - -[sendmail-auth] - -port = submission,465,smtp -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -[sendmail-reject] - -port = smtp,465,submission -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -[qmail-rbl] - -filter = qmail -port = smtp,465,submission -logpath = /service/qmail/log/main/current - - -# dovecot defaults to logging to the mail syslog facility -# but can be set by syslog_facility in the dovecot configuration. -[dovecot] - -port = pop3,pop3s,imap,imaps,submission,465,sieve -logpath = %(dovecot_log)s -backend = %(dovecot_backend)s - - -[sieve] - -port = smtp,465,submission -logpath = %(dovecot_log)s -backend = %(dovecot_backend)s - - -[solid-pop3d] - -port = pop3,pop3s -logpath = %(solidpop3d_log)s - - -[exim] - -port = smtp,465,submission -logpath = %(exim_main_log)s - - -[exim-spam] - -port = smtp,465,submission -logpath = %(exim_main_log)s - - -[kerio] - -port = imap,smtp,imaps,465 -logpath = /opt/kerio/mailserver/store/logs/security.log - - -# -# Mail servers authenticators: might be used for smtp,ftp,imap servers, so -# all relevant ports get banned -# - -[courier-auth] - -port = smtp,465,submission,imap3,imaps,pop3,pop3s -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -[postfix-sasl] - -port = smtp,465,submission,imap3,imaps,pop3,pop3s -# 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 = %(postfix_log)s -backend = %(postfix_backend)s - - -[perdition] - -port = imap3,imaps,pop3,pop3s -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -[squirrelmail] - -port = smtp,465,submission,imap2,imap3,imaps,pop3,pop3s,http,https,socks -logpath = /var/lib/squirrelmail/prefs/squirrelmail_access_log - - -[cyrus-imap] - -port = imap3,imaps -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -[uwimap-auth] - -port = imap3,imaps -logpath = %(syslog_mail)s -backend = %(syslog_backend)s - - -# -# -# DNS servers -# - - -# !!! 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. -# -# IMPORTANT: see filter.d/named-refused for instructions to enable logging -# This jail blocks UDP traffic for DNS requests. -# [named-refused-udp] -# -# filter = named-refused -# port = domain,953 -# protocol = udp -# logpath = /var/log/named/security.log - -# IMPORTANT: see filter.d/named-refused for instructions to enable logging -# This jail blocks TCP traffic for DNS requests. - -[named-refused] - -port = domain,953 -logpath = /var/log/named/security.log - - -[nsd] - -port = 53 -action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] - %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] -logpath = /var/log/nsd.log - - -# -# Miscellaneous -# - -[asterisk] - -port = 5060,5061 -action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] - %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] - %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s"] -logpath = /var/log/asterisk/messages -maxretry = 10 - - -[freeswitch] - -port = 5060,5061 -action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] - %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] - %(mta)s-whois[name=%(__name__)s, dest="%(destemail)s"] -logpath = /var/log/freeswitch.log -maxretry = 10 - - -# To log wrong MySQL access attempts add to /etc/my.cnf in [mysqld] or -# equivalent section: -# log-warning = 2 -# -# for syslog (daemon facility) -# [mysqld_safe] -# syslog -# -# for own logfile -# [mysqld] -# log-error=/var/log/mysqld.log -[mysqld-auth] - -port = 3306 -logpath = %(mysql_log)s -backend = %(mysql_backend)s - - -# Log wrong MongoDB auth (for details see filter 'filter.d/mongodb-auth.conf') -[mongodb-auth] -# change port when running with "--shardsvr" or "--configsvr" runtime operation -port = 27017 -logpath = /var/log/mongodb/mongodb.log - - -# Jail for more extended banning of persistent abusers -# !!! WARNINGS !!! -# 1. 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 -# 2. Increase dbpurgeage defined in fail2ban.conf to e.g. 648000 (7.5 days) -# to maintain entries for failed logins for sufficient amount of time -[recidive] - -logpath = /var/log/fail2ban.log -banaction = %(banaction_allports)s -bantime = 604800 ; 1 week -findtime = 86400 ; 1 day - - -# Generic filter for PAM. Has to be used with action which bans all -# ports such as iptables-allports, shorewall - -[pam-generic] -# pam-generic filter can be customized to monitor specific subset of 'tty's -banaction = %(banaction_allports)s -logpath = %(syslog_authpriv)s -backend = %(syslog_backend)s - - -[xinetd-fail] - -banaction = iptables-multiport-log -logpath = %(syslog_daemon)s -backend = %(syslog_backend)s -maxretry = 2 - - -# stunnel - need to set port for this -[stunnel] - -logpath = /var/log/stunnel4/stunnel.log - - -[ejabberd-auth] - -port = 5222 -logpath = /var/log/ejabberd/ejabberd.log - - -[counter-strike] - -logpath = /opt/cstrike/logs/L[0-9]*.log -# Firewall: http://www.cstrike-planet.com/faq/6 -tcpport = 27030,27031,27032,27033,27034,27035,27036,27037,27038,27039 -udpport = 1200,27000,27001,27002,27003,27004,27005,27006,27007,27008,27009,27010,27011,27012,27013,27014,27015 -action = %(banaction)s[name=%(__name__)s-tcp, port="%(tcpport)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp] - %(banaction)s[name=%(__name__)s-udp, port="%(udpport)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] - -# consider low maxretry and a long bantime -# nobody except your own Nagios server should ever probe nrpe -[nagios] - -logpath = %(syslog_daemon)s ; nrpe.cfg may define a different log_facility -backend = %(syslog_backend)s -maxretry = 1 - - -[oracleims] -# see "oracleims" filter file for configuration requirement for Oracle IMS v6 and above -logpath = /opt/sun/comms/messaging64/log/mail.log_current -banaction = %(banaction_allports)s - -[directadmin] -logpath = /var/log/directadmin/login.log -port = 2222 - -[portsentry] -logpath = /var/lib/portsentry/portsentry.history -maxretry = 1 - -[pass2allow-ftp] -# this pass2allow example allows FTP traffic after successful HTTP authentication -port = ftp,ftp-data,ftps,ftps-data -# knocking_url variable must be overridden to some secret value in jail.local -knocking_url = /knocking/ -filter = apache-pass[knocking_url="%(knocking_url)s"] -# access log of the website with HTTP auth -logpath = %(apache_access_log)s -blocktype = RETURN -returntype = DROP -bantime = 3600 -maxretry = 1 -findtime = 1 - - -[murmur] -# AKA mumble-server -port = 64738 -action = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol=tcp, chain="%(chain)s", actname=%(banaction)s-tcp] - %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol=udp, chain="%(chain)s", actname=%(banaction)s-udp] -logpath = /var/log/mumble-server/mumble-server.log - - -[screensharingd] -# For Mac OS Screen Sharing Service (VNC) -logpath = /var/log/system.log -logencoding = utf-8 - -[haproxy-http-auth] -# HAProxy by default doesn't log to file you'll need to set it up to forward -# logs to a syslog server which would then write them to disk. -# See "haproxy-http-auth" filter for a brief cautionary note when setting -# maxretry and findtime. -logpath = /var/log/haproxy.log - -[slapd] -port = ldap,ldaps -filter = slapd -logpath = /var/log/slapd.log