duo_unix Puppet Module

Table of Contents

Overview

Description

Example Usage

Reference

Limitations

Overview

The duo_unix module installs and manages duo_unix (login_duo or pam_duo).

Description

The duo_unix module handles the deployment of duo_unix (login_duo or pam_duo) across a range of Linux distributions. The module will handle repository dependencies, installation of the duo_unix package, configuration of OpenSSH, and PAM alterations as needed.

For further information about duo_unix, view the official documentation.

Installing

$ puppet module install duosecurity-duo_unix

Configuring

$ cat duo_unix.pp
class { 'duo_unix':
  usage     => 'login',
  ikey      => 'YOUR-IKEY-VALUE',
  skey      => 'YOUR-SKEY-VALUE',
  host      => 'YOUR-HOST-VALUE',
  pushinfo  => 'yes'
}
$ puppet apply duo_unix.pp

Reference

Classes

• duo_unix - Main class, includes all of the rest
• duo_unix::apt - Repository configuration for Apt-based distributions
• duo_unix::generic - Provides cross-platform resources
• duo_unix::login - Configuration of login_duo functionality
• duo_unix::pam - Configuration of pam_duo functionality
• duo_unix::yum - Repository configuration for Yum-based distributions

Parameters

The following parameters are available to configure in the duo_unix module. Please note that many parameters have default settings and some are required while others are optional.

usage [required]

This determines whether login_duo or pam_duo is utilized. Valid options are login or pam.

ikey [required]

Configures the integration key (ikey) value.

skey [required]

Configures the secret key (skey) value.

host [required]

Configures the API host (host) value.

fallback_local_ip [optional]

Configures whether or not to fallback to the server's IP. Valid options are yes and no. The default is no.

failmode [optional]

Configures how to fail if the Duo service is misconfigured. Valid options are safe (open) and secure (closed). The default is safe.

pushinfo [optional]

Configures whether to show command execution details in the push notification. Valid options are yes and no. The default is no.

autopush [optional]

Configures whether to send a push automatically to a user if their phone is capable. Valid options are yes and no. The default is no.

prompts [optional]

Configures the number of times a user will be prompted to complete their second factor authentication. Valid options are 1, 2, and 3. The default is 3.

accept_env_factor [optional]

Configures whether an environment variable can be configured with a passcode to complete the second factor authentication. Valid options are yes and no. The default is no.

motd [optional]

Configures if a successful login will print /etc/motd to the user. This is only an option for login_duo. Valid options are yes and no. The default is no.

group [optional]

Configures a Unix group that will have duo_unix enabled for the associated users. There is no default for this setting.

http_proxy [optional]

Configures usage of the http_proxy environment variable. There is not default for this setting.

manage_ssh [optional]

Configures whether or not to allow the module to manage the SSH service/package. The default is true.

manage_pam [optinal]

Configures whether or not to allow the module to manage the system PAM configuration. The default is true.

pam_unix_control [optional]

Configures the PAM control value for pam_duo. The default is requisite.

package_version [optional]

Configure which version of Duo Unix to use. The default is latest.

Limitations

This module has been built on and tested against Puppet 3.2.4

The module has been tested on:

• RedHat Enterprise Linux 6.4 (32/64-bit)
• RedHat Enterprise Linux 7.0 (64-bit)
• CentOS 5.11 (32/64-bit)
• CentOS 6.7 (32/64-bit)
• CentOS 7.1 (64-bit)
• Debian 6.0.10 (32/64-bit)
• Debian 7.9 (32/64-bit)
• Debian 8.2 (32/64-bit)
• Ubuntu 12.04.5 (32/64-bit)
• Ubuntu 14.04.3 (32/64-bit)

If you test the module on other Linux distributions (or different versions of the above), please provide feedback as able on successes or failures. We will work to add support for other operating systems and Linux distributions soon.

Caution: The use of this module will edit OpenSSH and/or PAM configuration files depending on the usage defined. These modifications have only been tested against default distribution configurations and could impact your settings. Be sure to test this module against non-production systems before attempting to deploy it across your critical infrastucture.

Thanks

• Gregg Leventhal
• level99
• Denise Stockman
• Dan Cox