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@@ -1 +1,180 @@
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+##########
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+FAil2Ban
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+##########
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+|
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+
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+| For information about Fail2Ban on FreeSWITCH, http://wiki.freeswitch.org/wiki/Fail2ban see their wiki
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+
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+| **Logs**
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+| This will log FusionPBX authentication failures to syslog (AUTH_LOG). This file can be in different places depending on how rsyslog, or syslog is configured.
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+| **Ubuntu**
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+| **/var/log/auth.log
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+
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+| **Examples**
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+| **GUI Login**
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+| incorrect username
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+| Feb 1 11:35:11 your_hostname FusionPBX: [w.x.y.z] authentication failed for login_username
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+| incorrect password
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+| Feb 1 12:07:27 your_hostname FusionPBX: [w.x.y.z] authentication failed for superadmin
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+| **=Provisioning**=
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+| Created from the code in /fusionpbx/mod/provision/index.php Please doublecheck this!
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+| Feb 1 12:07:27 your_hostname FusionPBX: [w.x.y.z] provision attempt bad password for AA:BB:CC:DD:EE:FF
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+
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+| **Setting up Fail2Ban**
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+| **RegEx**
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+| You can test the regex with fail2ban-regex
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+| '[hostname] FusionPBX: \[<HOST>\] authentication failed'
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+|
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+| **Configuration**
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+| **Jail Options**
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+|
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+| Every jail can be customized by tuning following options:
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+
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+| {| border="1"
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+| |+ Jail Options
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+| ! Name !! Default !! Description
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+|-
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+! filter ||
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+| Name of the filter to be used by the jail to detect matches. Each single match by a filter increments the counter within the jail
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+| |-
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+| ! logpath || /var/log/messages
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+| | Path to the log file which is provided to the filter
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+| |-
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+| ! maxretry || 3
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+| | Number of matches (i.e. value of the counter) which triggers ban action on the IP.
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+| |-
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+| ! findtime || 600 sec
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+| | The counter is set to zero if no match is found within "findtime" seconds.
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+| |-
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+| ! bantime || 600 sec
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+| | Duration (in seconds) for IP to be banned for.
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+| |}
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+
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+**Filter Rules**
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+vim /etc/fail2ban/filter.d/fusionpbx.conf
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+ # Fail2Ban configuration file
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+ #
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+ # Author: soapee01
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+ #
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+
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+ [Definition]
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+
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+ # Option: failregex
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+ # Notes.: regex to match the password failures messages in the logfile. The
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+ # host must be matched by a group named "host". The tag "<HOST>" can
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+ # be used for standard IP/hostname matching and is only an alias for
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+ # (?:::f{4,6}:)?(?P<host>[\w\-.^_]+)
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+ # Values: TEXT
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+ #
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+ #failregex = [hostname] FusionPBX: \[<HOST>\] authentication failed
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+ #[hostname] variable doesn't seem to work in every case. Do this instead:
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+ failregex = .* FusionPBX: \[<HOST>\] authentication failed for
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+ = .* FusionPBX: \[<HOST>\] provision attempt bad password for
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+
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+ # Option: ignoreregex
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+ # Notes.: regex to ignore. If this regex matches, the line is ignored.
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+ # Values: TEXT
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+ #
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+ ignoreregex =
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+
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+add the following to /etc/fail2ban/jail.local
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+ [fusionpbx]
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+
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+ enabled = true
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+ port = 80,443
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+ protocol = tcp
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+ filter = fusionpbx
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+ logpath = /var/log/auth.log
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+ action = iptables-allports[name=fusionpbx, protocol=all]
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+ # sendmail-whois[name=FusionPBX, dest=root, [email protected]] #no smtp server installed
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+
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+Add /etc/fail2ban/filter.d/freeswitch.conf with the contents:
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+ # Fail2Ban configuration file
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+ #
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+ # Author: Rupa SChomaker (first two regex)
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+
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+ [Definition]
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+
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+ # Option: failregex
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+ # Notes.: regex to match the password failures messages in the logfile. The
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+ # host must be matched by a group named "host". The tag "<HOST>" can
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+ # be used for standard IP/hostname matching and is only an alias for
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+ # (?:::f{4,6}:)?(?P<host>[\w\-.^_]+)
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+ # Values: TEXT
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+ #
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+ failregex = \[WARNING\] sofia_reg.c:\d+ SIP auth failure \(REGISTER\) on sofia profile \'\w+\' for \[.*\] from ip <HOST>
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+ \[WARNING\] sofia_reg.c:\d+ SIP auth failure \(INVITE\) on sofia profile \'\w+\' for \[.*\] from ip <HOST>
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+ \[WARNING\] sofia_reg.c:\d+ SIP auth challenge \(REGISTER\) on sofia profile \'\w+\' for \[.*\] from ip <HOST>
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+
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+ # Option: ignoreregex
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+ # Notes.: regex to ignore. If this regex matches, the line is ignored.
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+ # Values: TEXT
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+ #
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+ ignoreregex =
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+
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+Modify /etc/fail2ban/jail.conf. Add the following make sure the freeswitch.log file path is correct.
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+
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+ [freeswitch-tcp]
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+
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+ enabled = true
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+ port = 5060,5061,5080,5081
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+ protocol = tcp
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+ filter = freeswitch
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+ logpath = /usr/local/freeswitch/log/freeswitch.log
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+ action = iptables-allports[name=freeswitch-tcp, protocol=all]
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+ sendmail-whois[name=FreeSwitch, dest=root, [email protected]]
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+
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+ [freeswitch-udp]
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+
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+ enabled = true
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+ port = 5060,5061,5080,5081
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+ protocol = udp
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+ filter = freeswitch
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+ logpath = /usr/local/freeswitch/log/freeswitch/freeswitch.log
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+ action = iptables-allports[name=freeswitch-udp, protocol=all]
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+ sendmail-whois[name=FreeSwitch, dest=root, [email protected]]
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+
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+
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+/var/log/fail2ban.log will log this after 3 missed logins.
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+ 2011-02-01 12:32:18,151 fail2ban.actions: WARNING [fusionpbx] Ban 192.168.100.1
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+hostname # iptables -n -L fail2ban-fusionpbx
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+ Chain fail2ban-fusionpbx (1 referecnes)
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+ target prot opt source destination
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+ DROP all -- 192.168.100.1 anywhere
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+ RETURN all -- anywhere anywhere
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+
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+*Important
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+**You can easily ban yourself, including current active ssh connections.
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+**To unban:
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+ hostname # iptables -n -D fail2ban-fusionpbx 1
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+
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+**Keep yourself from getting banned.**
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+| add to /etc/fail2ban/jail.local
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+| [DEFAULT]
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+
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+| # "ignoreip" can be an IP address, a CIDR mask or a DNS host
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+| ignoreip = 127.0.0.1 192.168.0.99
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+| bantime = 600
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+| maxretry = 3
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+
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+| **Errors**
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+| If you're seeing something like this in your fail2ban logfile:
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+| 2011-02-27 14:11:42,326 fail2ban.actions.action: ERROR iptables -N fail2ban-freeswitch-tcp
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+| add the:
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+
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+::
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+ time.sleep(0.1) to /usr/bin/fail2ban-client
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+ def __processCmd(self, cmd, showRet = True):
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+ beautifier = Beautifier()
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+ for c in cmd:
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+ '''time.sleep(0.1)'''
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+ beautifier.setInputCmd(c)
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+
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+| or
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+
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+::
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+
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+ sed -i -e s,beautifier\.setInputCmd\(c\),'time.sleep\(0\.1\)\n\t\t\tbeautifier.setInputCmd\(c\)', /usr/bin/fail2ban-client
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+
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+| http://www.fail2ban.org/wiki/index.php/Fail2ban_talk:Community_Portal#fail2ban.action.action_ERROR_on_startup
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