I installed ispconfig with the guide here http://www.howtoforge.com/perfect-s...hp-pureftpd-postfix-dovecot-and-ispconfig3-p6 Fail2ban is installed but i am getting maillog with failed entries of example.com. I assume its from fail2ban. Isnt fail2ban configured by default on ispconfig install ? the configuration files are below jail.conf Code: # Fail2Ban jail base specification file # # HOW TO ACTIVATE JAILS: # # YOU SHOULD NOT MODIFY THIS FILE. # # It will probably be overwitten 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 # # [ssh-iptables] # enabled = true # Comments: use '#' for comment lines and ';' (following a space) for inline comments # 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 # External command that will take an tagged arguments to ignore, e.g. <ip>, # and return true if the IP is to be ignored. False otherwise. # # ignorecommand = /path/to/command <ip> ignorecommand = # "bantime" is the number of seconds that a host is banned. bantime = 600 # 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 = 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 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. usedns = warn # 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. [pam-generic] enabled = false filter = pam-generic action = iptables-allports[name=pam,protocol=all] logpath = /var/log/secure [xinetd-fail] enabled = false filter = xinetd-fail action = iptables-allports[name=xinetd,protocol=all] logpath = /var/log/daemon*log [ssh-iptables] enabled = true filter = sshd action = iptables[name=SSH, port=ssh, protocol=tcp] sendmail-whois[name=SSH, [email protected], [email protected], sendername="Fail2Ban"] logpath = /var/log/secure maxretry = 5 [ssh-ddos] enabled = false filter = sshd-ddos action = iptables[name=SSHDDOS, port=ssh, protocol=tcp] logpath = /var/log/sshd.log maxretry = 2 [dropbear] enabled = false filter = dropbear action = iptables[name=dropbear, port=ssh, protocol=tcp] logpath = /var/log/messages maxretry = 5 [proftpd-iptables] enabled = false filter = proftpd action = iptables[name=ProFTPD, port=ftp, protocol=tcp] sendmail-whois[name=ProFTPD, [email protected]] logpath = /var/log/proftpd/proftpd.log maxretry = 6 [gssftpd-iptables] enabled = false filter = gssftpd action = iptables[name=GSSFTPd, port=ftp, protocol=tcp] sendmail-whois[name=GSSFTPd, [email protected]] logpath = /var/log/daemon.log maxretry = 6 [pure-ftpd] enabled = false filter = pure-ftpd action = iptables[name=pureftpd, port=ftp, protocol=tcp] logpath = /var/log/pureftpd.log maxretry = 6 [wuftpd] enabled = false filter = wuftpd action = iptables[name=wuftpd, port=ftp, protocol=tcp] logpath = /var/log/daemon.log maxretry = 6 [sendmail-auth] enabled = false filter = sendmail-auth action = iptables-multiport[name=sendmail-auth, port="submission,465,smtp", protocol=tcp] logpath = /var/log/mail.log [sendmail-reject] enabled = false filter = sendmail-reject action = iptables-multiport[name=sendmail-auth, port="submission,465,smtp", protocol=tcp] logpath = /var/log/mail.log # This jail forces the backend to "polling". [sasl-iptables] enabled = false filter = postfix-sasl backend = polling action = iptables[name=sasl, port=smtp, protocol=tcp] sendmail-whois[name=sasl, [email protected]] logpath = /var/log/mail.log # ASSP SMTP Proxy Jail [assp] enabled = false filter = assp action = iptables-multiport[name=assp,port="25,465,587"] logpath = /root/path/to/assp/logs/maillog.txt # Here we use TCP-Wrappers instead of Netfilter/Iptables. "ignoreregex" is # used to avoid banning the user "myuser". [ssh-tcpwrapper] enabled = false filter = sshd action = hostsdeny[daemon_list=sshd] sendmail-whois[name=SSH, [email protected]] ignoreregex = for myuser from logpath = /var/log/sshd.log # 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 = 5 # 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 filter = sshd action = iptables-ipset-proto4[name=SSH, port=ssh, protocol=tcp] logpath = /var/log/sshd.log maxretry = 5 [ssh-iptables-ipset6] enabled = false filter = sshd action = iptables-ipset-proto6[name=SSH, port=ssh, protocol=tcp, bantime=600] logpath = /var/log/sshd.log maxretry = 5 # bsd-ipfw is ipfw used by BSD. It uses ipfw tables. # table number must be unique. # # This will create a deny rule for that table ONLY if a rule # for the table doesn't ready exist. # [ssh-bsd-ipfw] enabled = false filter = sshd action = bsd-ipfw[port=ssh,table=1] logpath = /var/log/auth.log maxretry = 5 # This jail demonstrates the use of wildcards in "logpath". # Moreover, it is possible to give other files on a new line. [apache-tcpwrapper] enabled = false filter = apache-auth action = hostsdeny logpath = /var/log/apache*/*error.log /home/www/myhomepage/error.log maxretry = 6 [apache-modsecurity] enabled = false filter = apache-modsecurity action = iptables-multiport[name=apache-modsecurity,port="80,443"] logpath = /var/log/apache*/*error.log /home/www/myhomepage/error.log maxretry = 2 [apache-overflows] enabled = false filter = apache-overflows action = iptables-multiport[name=apache-overflows,port="80,443"] logpath = /var/log/apache*/*error.log /home/www/myhomepage/error.log maxretry = 2 [apache-nohome] enabled = false filter = apache-nohome action = iptables-multiport[name=apache-nohome,port="80,443"] logpath = /var/log/apache*/*error.log /home/www/myhomepage/error.log maxretry = 2 [nginx-http-auth] enabled = false filter = nginx-http-auth action = iptables-multiport[name=nginx-http-auth,port="80,443"] logpath = /var/log/nginx/error.log [squid] enabled = false filter = squid action = iptables-multiport[name=squid,port="80,443,8080"] logpath = /var/log/squid/access.log # The hosts.deny path can be defined with the "file" argument if it is # not in /etc. [postfix-tcpwrapper] enabled = false filter = postfix action = hostsdeny[file=/not/a/standard/path/hosts.deny] sendmail[name=Postfix, [email protected]] logpath = /var/log/postfix.log bantime = 300 [cyrus-imap] enabled = false filter = cyrus-imap action = iptables-multiport[name=cyrus-imap,port="143,993"] logpath = /var/log/mail*log [courierlogin] enabled = false filter = courierlogin action = iptables-multiport[name=courierlogin,port="25,110,143,465,587,993,995"] logpath = /var/log/mail*log [couriersmtp] enabled = false filter = couriersmtp action = iptables-multiport[name=couriersmtp,port="25,465,587"] logpath = /var/log/mail*log [qmail-rbl] enabled = false filter = qmail action = iptables-multiport[name=qmail-rbl,port="25,465,587"] logpath = /service/qmail/log/main/current [sieve] enabled = false filter = sieve action = iptables-multiport[name=sieve,port="25,465,587"] logpath = /var/log/mail*log # Do not ban anybody. Just report information about the remote host. # A notification is sent at most every 600 seconds (bantime). [vsftpd-notification] enabled = false filter = vsftpd action = sendmail-whois[name=VSFTPD, [email protected]] logpath = /var/log/vsftpd.log maxretry = 5 bantime = 1800 # Same as above but with banning the IP address. [vsftpd-iptables] enabled = false filter = vsftpd action = iptables[name=VSFTPD, port=ftp, protocol=tcp] sendmail-whois[name=VSFTPD, [email protected]] logpath = /var/log/vsftpd.log maxretry = 5 bantime = 1800 # Ban hosts which agent identifies spammer robots crawling the web # for email addresses. The mail outputs are buffered. [apache-badbots] enabled = false filter = apache-badbots action = iptables-multiport[name=BadBots, port="http,https"] sendmail-buffered[name=BadBots, lines=5, [email protected]] logpath = /var/www/*/logs/access_log bantime = 172800 maxretry = 1 # Use shorewall instead of iptables. [apache-shorewall] enabled = false filter = apache-noscript action = shorewall sendmail[name=Postfix, [email protected]] logpath = /var/log/apache2/error_log # Monitor roundcube server [roundcube-iptables] enabled = false filter = roundcube-auth action = iptables-multiport[name=RoundCube, port="http,https"] logpath = /var/log/roundcube/userlogins # Monitor SOGo groupware server [sogo-iptables] enabled = false filter = sogo-auth # without proxy this would be: # port = 20000 action = iptables-multiport[name=SOGo, port="http,https"] logpath = /var/log/sogo/sogo.log [groupoffice] enabled = false filter = groupoffice action = iptables-multiport[name=groupoffice, port="http,https"] logpath = /home/groupoffice/log/info.log [openwebmail] enabled = false filter = openwebmail logpath = /var/log/openwebmail.log action = ipfw sendmail-whois[name=openwebmail, [email protected]] maxretry = 5 [horde] enabled = false filter = horde logpath = /var/log/horde/horde.log action = iptables-multiport[name=horde, port="http,https"] maxretry = 5 # 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 action = iptables-multiport[name=php-url-open, port="http,https"] filter = php-url-fopen logpath = /var/www/*/logs/access_log maxretry = 1 [suhosin] enabled = false filter = suhosin action = iptables-multiport[name=suhosin, port="http,https"] # adapt the following two items as needed logpath = /var/log/lighttpd/error.log maxretry = 2 [lighttpd-auth] enabled = false filter = lighttpd-auth action = iptables-multiport[name=lighttpd-auth, port="http,https"] # adapt the following two items as needed logpath = /var/log/lighttpd/error.log maxretry = 2 # This jail uses ipfw, the standard firewall on FreeBSD. The "ignoreip" # option is overridden in this jail. Moreover, the action "mail-whois" defines # the variable "name" which contains a comma using "". The characters '' are # valid too. [ssh-ipfw] enabled = false filter = sshd action = ipfw[localhost=192.168.0.1] sendmail-whois[name="SSH,IPFW", [email protected]] logpath = /var/log/auth.log ignoreip = 168.192.0.1 # !!! 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] # # enabled = false # filter = named-refused # action = iptables-multiport[name=Named, port="domain,953", protocol=udp] # sendmail-whois[name=Named, [email protected]] # logpath = /var/log/named/security.log # ignoreip = 168.192.0.1 # IMPORTANT: see filter.d/named-refused for instructions to enable logging # This jail blocks TCP traffic for DNS requests. [named-refused-tcp] enabled = false filter = named-refused action = iptables-multiport[name=Named, port="domain,953", protocol=tcp] sendmail-whois[name=Named, [email protected]] logpath = /var/log/named/security.log ignoreip = 168.192.0.1 [nsd] enabled = false filter = nsd action = iptables-multiport[name=nsd-tcp, port="domain", protocol=tcp] iptables-multiport[name=nsd-udp, port="domain", protocol=udp] logpath = /var/log/nsd.log [asterisk] enabled = false filter = asterisk action = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp] iptables-multiport[name=asterisk-udp, port="5060,5061", protocol=udp] sendmail-whois[name=Asterisk, [email protected], [email protected]] logpath = /var/log/asterisk/messages maxretry = 10 [freeswitch] enabled = false filter = freeswitch logpath = /var/log/freeswitch.log maxretry = 10 action = iptables-multiport[name=freeswitch-tcp, port="5060,5061,5080,5081", protocol=tcp] iptables-multiport[name=freeswitch-udp, port="5060,5061,5080,5081", protocol=udp] [ejabberd-auth] enabled = false filter = ejabberd-auth logpath = /var/log/ejabberd/ejabberd.log action = iptables[name=ejabberd, port=xmpp-client, protocol=tcp] # Historical support (before https://github.com/fail2ban/fail2ban/issues/37 was fixed ) # use [asterisk] for new jails [asterisk-tcp] enabled = false filter = asterisk action = iptables-multiport[name=asterisk-tcp, port="5060,5061", protocol=tcp] sendmail-whois[name=Asterisk, [email protected], [email protected]] logpath = /var/log/asterisk/messages maxretry = 10 # Historical support (before https://github.com/fail2ban/fail2ban/issues/37 was fixed ) # use [asterisk] for new jails [asterisk-udp] enabled = false filter = asterisk action = iptables-multiport[name=asterisk-udp, port="5060,5061", protocol=udp] sendmail-whois[name=Asterisk, [email protected], [email protected]] logpath = /var/log/asterisk/messages maxretry = 10 [mysqld-iptables] enabled = false filter = mysqld-auth action = iptables[name=mysql, port=3306, protocol=tcp] sendmail-whois[name=MySQL, dest=root, [email protected]] logpath = /var/log/mysqld.log maxretry = 5 [mysqld-syslog] enabled = false filter = mysqld-auth action = iptables[name=mysql, port=3306, protocol=tcp] logpath = /var/log/daemon.log maxretry = 5 # 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,protocol=all] sendmail-whois-lines[name=recidive, logpath=/var/log/fail2ban.log] bantime = 604800 ; 1 week findtime = 86400 ; 1 day maxretry = 5 # PF is a BSD based firewall [ssh-pf] enabled = false filter = sshd action = pf logpath = /var/log/sshd.log maxretry = 5 [3proxy] enabled = false filter = 3proxy action = iptables[name=3proxy, port=3128, protocol=tcp] logpath = /var/log/3proxy.log [exim] enabled = false filter = exim action = iptables-multiport[name=exim,port="25,465,587"] logpath = /var/log/exim/mainlog [exim-spam] enabled = false filter = exim-spam action = iptables-multiport[name=exim-spam,port="25,465,587"] logpath = /var/log/exim/mainlog [perdition] enabled = false filter = perdition action = iptables-multiport[name=perdition,port="110,143,993,995"] logpath = /var/log/maillog [uwimap-auth] enabled = false filter = uwimap-auth action = iptables-multiport[name=uwimap-auth,port="110,143,993,995"] logpath = /var/log/maillog [osx-ssh-ipfw] enabled = false filter = sshd action = osx-ipfw logpath = /var/log/secure.log maxretry = 5 [ssh-apf] enabled = false filter = sshd action = apf[name=SSH] logpath = /var/log/secure maxretry = 5 [osx-ssh-afctl] enabled = false filter = sshd action = osx-afctl[bantime=600] logpath = /var/log/secure.log maxretry = 5 [webmin-auth] enabled = false filter = webmin-auth action = iptables-multiport[name=webmin,port="10000"] logpath = /var/log/auth.log # dovecot defaults to logging to the mail syslog facility # but can be set by syslog_facility in the dovecot configuration. [dovecot] enabled = false filter = dovecot action = iptables-multiport[name=dovecot, port="pop3,pop3s,imap,imaps,submission,465,sieve", protocol=tcp] logpath = /var/log/mail.log [dovecot-auth] enabled = false filter = dovecot action = iptables-multiport[name=dovecot-auth, port="pop3,pop3s,imap,imaps,submission,465,sieve", protocol=tcp] logpath = /var/log/secure [solid-pop3d] enabled = false filter = solid-pop3d action = iptables-multiport[name=solid-pop3, port="pop3,pop3s", protocol=tcp] logpath = /var/log/mail.log [selinux-ssh] enabled = false filter = selinux-ssh action = iptables[name=SELINUX-SSH, port=ssh, protocol=tcp] logpath = /var/log/audit/audit.log maxretry = 5 # See the IMPORTANT note in action.d/blocklist_de.conf for when to # use this action # # Report block via blocklist.de fail2ban reporting service API # See action.d/blocklist_de.conf for more information [ssh-blocklist] enabled = false filter = sshd action = iptables[name=SSH, port=ssh, protocol=tcp] sendmail-whois[name=SSH, [email protected], [email protected], sendername="Fail2Ban"] blocklist_de[email="[email protected]", apikey="xxxxxx", service=%(filter)s] logpath = /var/log/sshd.log maxretry = 20 # consider low maxretry and a long bantime # nobody except your own Nagios server should ever probe nrpe [nagios] enabled = false filter = nagios action = iptables[name=Nagios, port=5666, protocol=tcp] sendmail-whois[name=Nagios, [email protected], [email protected], sendername="Fail2Ban"] logpath = /var/log/messages ; nrpe.cfg may define a different log_facility maxretry = 1
fail2ban.conf Code: # Fail2Ban main configuration file # # Comments: use '#' for comment lines and ';' (following a space) for inline comments # # Changes: in most of the cases you should not modify this # file, but provide customizations in fail2ban.local file, e.g.: # # [Definition] # loglevel = 4 # [Definition] # Option: loglevel # Notes.: Set the log level output. # 1 = ERROR # 2 = WARN # 3 = INFO # 4 = DEBUG # Values: [ NUM ] Default: 1 # loglevel = 3 # Option: logtarget # Notes.: Set the log target. This could be a file, SYSLOG, STDERR or STDOUT. # Only one log target can be specified. # If you change logtarget from the default value and you are # using logrotate -- also adjust or disable rotation in the # corresponding configuration file # (e.g. /etc/logrotate.d/fail2ban on Debian systems) # Values: [ STDOUT | STDERR | SYSLOG | FILE ] Default: STDERR # #logtarget = SYSLOG logtarget = /var/log/fail2ban.log # Option: socket # Notes.: Set the socket file. This is used to communicate with the daemon. Do # not remove this file when Fail2ban runs. It will not be possible to # communicate with the server afterwards. # Values: [ FILE ] Default: /var/run/fail2ban/fail2ban.sock # socket = /var/run/fail2ban/fail2ban.sock # Option: pidfile # Notes.: Set the PID file. This is used to store the process ID of the # fail2ban server. # Values: [ FILE ] Default: /var/run/fail2ban/fail2ban.pid # pidfile = /var/run/fail2ban/fail2ban.pid
