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LICENSE.md
View file @ 0a45f547
Copyright 2021, Technische Universität Dresden
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
README.md
View file @ 0a45f547
## Description
Description
===========
This role configures fail2ban.
## Requirements
none
### Roles
tbd: A list of required roles. Parent roles must not be listed.
### Variables
A list of all role variables.
Changed variable of parent roles must be listed too.
### Plugins
## Processes
tbd: A rough overview of the steps.
## License
BSD-3-Clauses
## Author Information
- Michael Klix <michael.klix@tu-dresden.de>
Requirements
============
Roles
-----
Only Parent roles.
Variables
---------
* fail2ban_loglevel:
* description:
* sets the loglevel output
* default: `INFO`
* choices: [`1 = ERROR`, `2 = WARN`, `3 = INFO`, `4 = DEBUG`]
* fail2ban_logtarget:
* description:
* Sets the log target. This could be a file, SYSLOG, STDERR or STDOUT.
* default: `/var/log/fail2ban.log`
* fail2ban_syslog_target:
* description:
* Sets the syslog target instance.
* default: `/var/log/fail2ban.log`
* fail2ban_syslog_facility:
* description:
* tbd...
* default: `1`
* fail2ban_socket:
* description:
* Sets the socket file, which is used to communicate with the daemon.
* default: `/var/run/fail2ban/fail2ban.sock`
* fail2ban_pidfile:
* description:
* Sets the pid file, which is used to to store the process ID of the daemon (Only works on `fail2ban >= 0.8.9`).
* default: `/var/run/fail2ban/fail2ban.pid`
* fail2ban_ignoreips:
* description:
* Which IP address/CIDR mask/DNS host should be ignored from fail2ban's actions.
* default: `[127.0.0.1/8]`
* fail2ban_bantime:
* description:
* Sets the bantime in seconds.
* default: `600`
* fail2ban_maxretry:
* description:
* Maximum number of retries before the host is put into jail.
* default: `3`
* fail2ban_findtime:
* description:
* A host is banned if it has generated `fail2ban_maxretry` during the last `fail2ban_findtime` in seconds.
* default: `600`
* fail2ban_backend:
* description:
* Specifies the backend used to get files modification.
* default: `auto`
* choices: tbd...
* fail2ban_banaction:
* description:
* Sets the global/default banaction.
* default: `iptables-multiport`
* fail2ban_protocol:
* description:
* Sets the default protocol.
* default: `tcp`
* choices: tbd...
* fail2ban_chain:
* description:
* Specifies the chain where jumps would need to be added in iptables-* actions.
* default: `INPUT`
* fail2ban_action:
* description:
* Default action. **Note that variables (including the actions defined elsewhere in the config files) must be wrapped in python-style `%(` and `)s` so they are expanded**.
* default: `%(action_)s`
* fail2ban_services:
* description:
* Service definitions.
* default see `defaults/main.yml`
* fail2ban_services.{n}.name [required]:
* description:
* Service name.
* default: undefined
* example: `sshd`, `ssh`
* fail2ban_services.{n}.enabled:
* description:
* Whether or not enabled.
* default: `true`
* choices: `true`, `false`
* fail2ban_services.{n}.\* [optional]:
* description:
* Name of the option
* fail2ban_services.{n}.\*.\* [optional]:
* description:
* Value of the option
Processes
=========
configure
---------
1. create configuration files from templates
License
=======
BSD-3-Clause
Contributors
============
* Michael Klix (michael.klix@tu-dresden.de)
Based on the provided SDM framework of
- Martin Pietsch <martin.pietsch@tu-dresden.de>
* Martin Pietsch (martin.pietsch@tu-dresden.de)
Mainly influenced by the implementation/example of Nicolas Bigot <https://github.com/nbigot/ansible-fail2ban>.
Mainly influenced by the implementation/example of
- Nicolas Bigot <https://github.com/nbigot/ansible-fail2ban>
Literature
==========
## Literature
- https://fail2ban.org/wiki/index.php/Category:HTTP
- https://fedoraproject.org/wiki/Fail2ban_with_FirewallD
- https://computingforgeeks.com/install-and-use-firewalld-on-ubuntu-18-04-ubuntu-16-04
- https://www.digitalocean.com/community/tutorials/how-to-protect-an-nginx-server-with-fail2ban-on-ubuntu-14-04
- https://snippets.aktagon.com/snippets/554-how-to-secure-an-nginx-server-with-fail2ban
* https://fail2ban.org/wiki/index.php/Category:HTTP
* https://fedoraproject.org/wiki/Fail2ban_with_FirewallD
* https://computingforgeeks.com/install-and-use-firewalld-on-ubuntu-18-04-ubuntu-16-04
* https://www.digitalocean.com/community/tutorials/how-to-protect-an-nginx-server-with-fail2ban-on-ubuntu-14-04
* https://snippets.aktagon.com/snippets/554-how-to-secure-an-nginx-server-with-fail2ban
molecule/default/converge.yml
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......@@ -4,6 +4,10 @@
vars:
system_config_directory: "/etc"
tasks:
- name: "install fail2ban"
sdm.oor.call_role:
name: package.security.fail2ban
tasks: main
- name: "configure fail2ban"
sdm.oor.call_role:
name: package.security.fail2ban
......
tasks/configure.yml
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......@@ -23,10 +23,3 @@
mode: 0644
notify:
- "restart services"
# to be fixed: should not be necessary due to handler "restart services"
- name: "start and enable service"
ansible.builtin.service:
name: fail2ban
state: started
enabled: true