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fail2ban (14) Versions 2.2.1

Installs and configures fail2ban

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cookbook 'fail2ban', '~> 2.2.1'
cookbook 'fail2ban', '~> 2.2.1'
knife cookbook site install fail2ban
knife cookbook site download fail2ban
README
Dependencies
Changelog
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Description

Installs and configures fail2ban, a utility that watches logs for failed login attempts and blocks repeat offenders with firewall rules. On Redhat systems this cookbook will enable the EPEL repository in order to retrieve the fail2ban package.

Requirements

Chef version 0.10.10+ and Ohai 0.6.12+ are required.

Platform

  • Debian, Ubuntu
  • Red Hat Enterprise Linux (CentOS/Amazon/Scientific/Oracle)
  • Fedora

Cookbooks

  • yum

Recipes

default

Installs the fail2ban package, manages 2 templates: /etc/fail2ban/fail2ban.conf and /etc/fail2ban/jail.conf, and manages the fail2ban service.

Usage

Typically, include recipe[fail2ban] in a base role applied to all nodes.

Attributes

This cookbook makes use of a hash to compile the jail.local-file and filter config files:

default['fail2ban']['services'] = {
  'ssh' => {
        "enabled" => "true",
        "port" => "ssh",
        "filter" => "sshd",
        "logpath" => node['fail2ban']['auth_log'],
        "maxretry" => "6"
     },
  'smtp' => {
        "enabled" => "true",
        "port" => "smtp",
        "filter" => "smtp",
        "logpath" => node['fail2ban']['auth_log'],
        "maxretry" => "6"
     }
}

The following attributes can be used per service:

  • enabled
  • port
  • filter
  • logpath
  • maxretry
  • protocol
  • banaction

Creating custom fail2ban filters:

default['fail2ban']['filters'] = {
  'nginx-proxy' => {
        "failregex" => ["^<HOST> -.*GET http.*"],
        "ignoreregex" => []
     },
}

Particular those related to rsyslog

If you are using rsyslog parameter "$RepeatedMsgReduction on" in rsyslog.conf file then you can get "Last message repeated N times" in system log file (for example auth.log). And it will affect the work of fail2ban, so that fail2ban will not work because the internal counter maxretry will not extend their Then you can change parameter "$RepeatedMsgReduction off" in rsyslog.conf file for maximum accuracy of maximum failed login attempts

This rsyslog parameter is default ON for ubuntu 12.04 LTS for example.

License and Author

Author:: Joshua Timberman

Copyright:: 2009-2013, Opscode, Inc

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

v2.2.1 (2014-10-15)

  • [#24] Add default value for pidfile

v2.2.0

  • #15 - Fix small typo in README.md for smtp
  • #16 - Support custom fail2ban filters
  • #21 - Service and defaults improvements, Fedora support

v2.1.2

Improvement

  • COOK-3899 - Allow action override in service block

v2.1.0

Updating for cookbook yum ~> 3.0 Fixing style or rubocop Updating test bits

v2.0.4

fixing metadata version error. locking to 3.0

v2.0.2

Locking yum dependency to '< 3'

v2.0.0

[COOK-2530] Allow customisation of jail.local

v1.2.4

New Feature

  • COOK-3383 - Add clarifying caveat about rsyslog in README

Bug

  • COOK-3249 - Fix default jail.conf on CentOS

Improvement

  • COOK-2748 - Handle /etc.init.d/fail2ban status for older versions

v1.2.2

Bug

  • [COOK-2588]: Fail2ban needs to store the socket in the correct location
  • [COOK-2592]: fail2ban: Update jail file template to match current config file

v1.2.0

  • [COOK-2292] - Add fail2ban support for RHEL using EPEL
  • [COOK-2426] - Fail2ban cookbook needs syslog tunables in config file
  • Development repository only: test kitchen 1.0.alpha support

v1.1.0

  • [COOK-2291] - Add additional tunables to the fail2ban cookbook

v1.0.2

  • [COOK-2217] - Users should be able to configure the email address fail2ban uses to send messages

v1.0.0

  • Current public release.

2.2.1 passed Foodcritic.