ossec-server

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ansible-ossec-server

This role will install the ossec server on a host.

Build Status:

Requirements

This role will work on:

Red Hat
Debian
Ubuntu
Amazon Linux (2)

So, you'll need one of those operating systems.. :-)

Role Variables

This role has some variables which you can or need to override.

ossec_server_atomic_release: 1.0-21
ossec_server_config: []
ossec_agent_configs: []

Example setup

Edit the vars file for the host which runs the ossec-server:

host_vars/ossec-server

install_postfix: true
postfix_mydomain: email-smtp.us-west-1.amazonaws.com
postfix_sasl_passwds:
  - "[email-smtp.us-west-1.amazonaws.com]:587 USERNAME:PASSWORD
postfix_relayhost: false
postfix_mynetworks: false
postfix_myhostname: localhost
postfix_domain: localhost
postfix_additional_settings:
  relayhost: "[email-smtp.us-west-1.amazonaws.com]:587"

ossec_server_config:
  mail_to:
    - [email protected]
  mail_smtp_server: localhost
  mail_from: [email protected]
  frequency_check: 72000
  ignore_files:
    - /etc/mtab
    - /etc/mnttab
    - /etc/hosts.deny
  directories:
    - check_all: 'yes'
      dirs: /etc,/usr/bin,/usr/sbin
    - check_all: 'yes'
      dirs: /bin,/sbin
  localfiles:
    - format: 'syslog'
      location: '/var/log/messages'
    - format: 'syslog'
      location: '/var/log/secure'
  globals:
    - '127.0.0.1'
    - '192.168.2.1'
  connection: 'secure'
  log_level: 1
  email_level: 7
  commands:
    - name: 'host-deny'
      executable: 'host-deny.sh'
      expect: 'srcip'
      timeout_allowed: 'yes'
  active_responses:
    - command: 'host-deny'
      location: 'local'
      level: 6
      timeout: 600
  localfiles:
    - format: 'syslog'
      location: '/var/log/messages'
    - format: 'syslog'
      location: '/var/log/secure'

ossec_agent_configs:
  - type: os
    type_value: linux
    frequency_check: 79200
    ignore_files:
      - /etc/mtab
      - /etc/mnttab
      - /etc/hosts.deny
      - /etc/mail/statistics
      - /etc/svc/volatile
    directories:
      - check_all: 'yes'
        dirs: /etc,/usr/bin,/usr/sbin
      - check_all: 'yes'
        dirs: /bin,/sbin
    localfiles:
      - format: 'syslog'
        location: '/var/log/messages'
      - format: 'syslog'
        location: '/var/log/secure'
      - format: 'syslog'
        location: '/var/log/maillog'
      - format: 'apache'
        location: '/var/log/httpd/error_log'
      - format: 'apache'
        location: '/var/log/httpd/access_log'
      - format: 'apache'
        location: '/var/ossec/logs/active-responses.log'

ossec_server_config:

At first, there is the server configuration. Change it for your needs, as this default setup won't do any good for you. (You don't have access to use the mail.example.com mailhost. :-))

ossec_agent_configs:

http://ossec-docs.readthedocs.org/en/latest/manual/agent/agent-configuration.html

There are 3 "types":

os
name
profile

In the above setup, the type is os. And this configuration is for the "linux" os. You can have several types configured in the host_vars file, so you can create all kind of different configs.

You can find here some more information about the ossec shared agent configuration: http://ossec-docs.readthedocs.org/en/latest/manual/syscheck/

<_role_>/vars/main.yml

nil

Dependencies

No dependencies.

Example Playbook

Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:

- hosts: ossec-server.example.com
  roles:
     - { role: dj-wasabi.ossec-server }

Molecule

This roles is configured to be tested with Molecule. You can find on this page some more information regarding Molecule: https://werner-dijkerman.nl/2016/07/10/testing-ansible-roles-with-molecule-testinfra-and-docker/ Molecule will boot 2 docker containers, containing the following OS: