diff --git a/.kitchen.yml b/.kitchen.yml
index 122f5de..dce7fe2 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -71,4 +71,9 @@
         - source: tests/example
           dest: srv/salt/linux/files/test
 
+  - name: duo
+    provisioner:
+      pillars-from-files:
+        linux.sls: tests/pillar/system_duo.sls
+
 # vim: ft=yaml sw=2 ts=2 sts=2 tw=125
diff --git a/.travis.yml b/.travis.yml
index 875835a..dce83af 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,6 +32,7 @@
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=system
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=network
   - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=system
+  - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=duo
   # - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=network
   # - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=system
   # - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=network
diff --git a/README.rst b/README.rst
index 127ac3d..79b8b18 100644
--- a/README.rst
+++ b/README.rst
@@ -2175,6 +2175,31 @@
                 shadow: (&(&(objectClass=person)(uidNumber=*))(unixHomeDirectory=*))
                 group:  (&(objectClass=group)(gidNumber=*))
 
+PAM duo 2FA integration
+
+.. code-block:: yaml
+
+    parameters:
+      linux:
+        system:
+          auth:
+            enabled: true
+            duo:
+              enabled: true
+              duo_host: localhost
+              duo_ikey: DUO-INTEGRATION-KEY
+              duo_skey: DUO-SECRET-KEY
+
+duo package version may be specified (optional)
+
+.. code-block:: yaml
+
+      linux:
+        system:
+          package:
+            duo-unix:
+              version: 1.10.1-0
+
 Disabled multipath (the default setup):
 
 .. code-block:: yaml
diff --git a/linux/files/login_duo.conf b/linux/files/login_duo.conf
new file mode 100644
index 0000000..914ce8a
--- /dev/null
+++ b/linux/files/login_duo.conf
@@ -0,0 +1,8 @@
+{%- from "linux/map.jinja" import auth with context %}
+[duo]
+ikey = {{ auth.duo.duo_ikey }}
+skey = {{ auth.duo.duo_skey }}
+host = {{ auth.duo.duo_host }}
+pushinfo = yes
+failmode = secure
+
diff --git a/linux/files/pam-sshd b/linux/files/pam-sshd
new file mode 100644
index 0000000..1aeb502
--- /dev/null
+++ b/linux/files/pam-sshd
@@ -0,0 +1,67 @@
+{%- from "linux/map.jinja" import auth with context %}
+
+# PAM configuration for the Secure Shell service
+
+{%- if auth.duo.enabled %}
+auth required /lib64/security/pam_duo.so
+account required pam_nologin.so
+
+# Standard Un*x authentication.
+#@include common-auth
+{%- else %}
+# Standard Un*x authentication.
+@include common-auth
+{%- endif %}
+
+# Disallow non-root logins when /etc/nologin exists.
+account    required     pam_nologin.so
+
+# Uncomment and edit /etc/security/access.conf if you need to set complex
+# access limits that are hard to express in sshd_config.
+# account  required     pam_access.so
+
+# Standard Un*x authorization.
+@include common-account
+
+# SELinux needs to be the first session rule.  This ensures that any
+# lingering context has been cleared.  Without this it is possible that a
+# module could execute code in the wrong domain.
+session [success=ok ignore=ignore module_unknown=ignore default=bad]        pam_selinux.so close
+
+# Set the loginuid process attribute.
+session    required     pam_loginuid.so
+
+# Create a new session keyring.
+session    optional     pam_keyinit.so force revoke
+
+# Standard Un*x session setup and teardown.
+@include common-session
+
+# Print the message of the day upon successful login.
+# This includes a dynamically generated part from /run/motd.dynamic
+# and a static (admin-editable) part from /etc/motd.
+session    optional     pam_motd.so  motd=/run/motd.dynamic
+session    optional     pam_motd.so noupdate
+
+# Print the status of the user's mailbox upon successful login.
+session    optional     pam_mail.so standard noenv # [1]
+
+# Set up user limits from /etc/security/limits.conf.
+session    required     pam_limits.so
+
+
+# Read environment variables from /etc/environment and
+# /etc/security/pam_env.conf.
+session    required     pam_env.so # [1]
+# In Debian 4.0 (etch), locale-related environment variables were moved to
+# /etc/default/locale, so read that as well.
+session    required     pam_env.so user_readenv=1 envfile=/etc/default/locale
+
+# SELinux needs to intervene at login time to ensure that the process starts
+# in the proper default security context.  Only sessions which are intended
+# to run in the user's context should be run after this.
+session [success=ok ignore=ignore module_unknown=ignore default=bad]        pam_selinux.so open
+
+# Standard Un*x password updating.
+@include common-password
+
diff --git a/linux/map.jinja b/linux/map.jinja
index 37a6d59..667a2dd 100644
--- a/linux/map.jinja
+++ b/linux/map.jinja
@@ -112,12 +112,30 @@
 {% set auth = salt['grains.filter_by']({
     'Arch': {
         'enabled': false,
+        'duo': {
+            'enabled': false,
+            'duo_host': 'localhost',
+            'duo_ikey': '',
+            'duo_skey': ''
+        }
     },
     'RedHat': {
         'enabled': false,
+        'duo': {
+            'enabled': false,
+            'duo_host': 'localhost',
+            'duo_ikey': '',
+            'duo_skey': ''
+        }
     },
     'Debian': {
         'enabled': false,
+        'duo': {
+            'enabled': false,
+            'duo_host': 'localhost',
+            'duo_ikey': '',
+            'duo_skey': ''
+        }
     },
 }, grain='os_family', merge=salt['pillar.get']('linux:system:auth')) %}
 
@@ -440,3 +458,4 @@
         }
     },
 }, grain='os_family', merge=salt['pillar.get']('linux:monitoring')) %}
+
diff --git a/linux/system/auth.sls b/linux/system/auth.sls
index 2de2f6c..690ec04 100644
--- a/linux/system/auth.sls
+++ b/linux/system/auth.sls
@@ -1,9 +1,13 @@
 {%- from "linux/map.jinja" import auth with context %}
 
 {%- if auth.enabled %}
-  {%- set pam_modules_enable = "" %}
-  {%- set pam_modules_disable = "" %}
-  {%- if grains.os_family == 'Debian' %}
+  {%- if auth.duo.enabled %}
+include:
+  - linux.system.auth.duo
+  {%- else %}
+    {%- set pam_modules_enable = "" %}
+    {%- set pam_modules_disable = "" %}
+    {%- if grains.os_family == 'Debian' %}
 linux_auth_pam_packages:
   pkg.installed:
   - pkgs: [ 'libpam-runtime' ]
@@ -15,11 +19,11 @@
     - mode: 755
     - require:
       - pkg: linux_auth_pam_packages
-  {%- endif %}
+    {%- endif %}
 
-  {%- if auth.get('mkhomedir', {}).get('enabled', False) %}
-    {%- if grains.os_family == 'Debian' %}
-      {%- set pam_modules_enable = pam_modules_enable + ' mkhomedir' %}
+    {%- if auth.get('mkhomedir', {}).get('enabled', False) %}
+      {%- if grains.os_family == 'Debian' %}
+        {%- set pam_modules_enable = pam_modules_enable + ' mkhomedir' %}
 linux_auth_mkhomedir_debconf_package:
   pkg.installed:
   - pkgs: [ 'debconf-utils' ]
@@ -30,18 +34,18 @@
     - source: salt://linux/files/mkhomedir
     - template: jinja
 
+      {%- endif %}
+    {%- else %}
+      {%- if grains.os_family == 'Debian' %}
+        {%- set pam_modules_disable = pam_modules_disable + ' mkhomedir' %}
+      {%- endif %}
     {%- endif %}
-  {%- else %}
-    {%- if grains.os_family == 'Debian' %}
-      {%- set pam_modules_disable = pam_modules_disable + ' mkhomedir' %}
-    {%- endif %}
-  {%- endif %}
 
-  {%- if auth.get('ldap', {}).get('enabled', False) %}
-    {%- from "linux/map.jinja" import ldap with context %}
+    {%- if auth.get('ldap', {}).get('enabled', False) %}
+      {%- from "linux/map.jinja" import ldap with context %}
 
-    {%- if grains.os_family == 'Debian' %}
-      {%- set pam_modules_enable = pam_modules_enable + ' ldap' %}
+      {%- if grains.os_family == 'Debian' %}
+        {%- set pam_modules_enable = pam_modules_enable + ' ldap' %}
 
 linux_auth_ldap_debconf_package:
   pkg.installed:
@@ -69,16 +73,16 @@
         libpam-ldapd/enable_shadow:
           type: 'boolean'
           value: 'true'
+      {%- endif %}
+    {%- else %}
+      {%- if grains.os_family == 'Debian' %}
+        {%- set pam_modules_disable = pam_modules_disable + ' ldap' %}
+      {%- endif %}
     {%- endif %}
-  {%- else %}
-    {%- if grains.os_family == 'Debian' %}
-      {%- set pam_modules_disable = pam_modules_disable + ' ldap' %}
-    {%- endif %}
-  {%- endif %}
 
   {#- Setup PAM profiles #}
-  {%- if grains.os_family == 'Debian' %}
-    {%- if auth.get('mkhomedir', {}).get('enabled', False) %}
+    {%- if grains.os_family == 'Debian' %}
+      {%- if auth.get('mkhomedir', {}).get('enabled', False) %}
 linux_auth_pam_add_profiles_mkhomedir_enable:
   cmd.run:
     - name: /usr/local/bin/pam-add-profile {{ pam_modules_enable }}
@@ -92,19 +96,19 @@
       - file: linux_auth_mkhomedir_config
     - require:
       - file: linux_auth_pam_add_profile
-      {%- if auth.get('ldap', {}).get('enabled', False) %}
+        {%- if auth.get('ldap', {}).get('enabled', False) %}
       - pkg: linux_auth_ldap_packages
-      {%- endif %}
-    {%- else %}
+        {%- endif %}
+      {%- else %}
 linux_auth_pam_remove_profiles_mkhomedir:
   cmd.run:
     - name: /usr/sbin/pam-auth-update --remove {{ pam_modules_disable }}
     - onlyif: "[[ `grep -c pam_mkhomedir.so /etc/pam.d/common-session` -ne 0 ]]"
     - require:
       - pkg: linux_auth_pam_packages
-    {%- endif %}
+      {%- endif %}
 
-    {%- if auth.get('ldap', {}).get('enabled', False) %}
+      {%- if auth.get('ldap', {}).get('enabled', False) %}
 linux_auth_pam_add_profiles_ldap:
   cmd.run:
     - name: /usr/local/bin/pam-add-profile {{ pam_modules_enable }}
@@ -112,49 +116,49 @@
     - require:
       - file: linux_auth_pam_add_profile
       - pkg: linux_auth_ldap_packages
-    {%- else %}
+      {%- else %}
 linux_auth_pam_remove_profiles_ldap:
   cmd.run:
     - name: /usr/sbin/pam-auth-update --remove {{ pam_modules_disable }}
     - onlyif: "[[ `debconf-get-selections | grep libpam-runtime/profiles | grep -c ldap` -ne 0 ]]"
     - require:
       - pkg: linux_auth_pam_packages
-    {%- endif %}
+      {%- endif %}
 
-  {%- elif grains.os_family == 'RedHat' %}
-    {%- if auth.get('mkhomedir', {}).get('enabled', False) %}
+    {%- elif grains.os_family == 'RedHat' %}
+      {%- if auth.get('mkhomedir', {}).get('enabled', False) %}
 linux_auth_config_enable_mkhomedir:
   cmd.run:
     - name: "authconfig --enablemkhomedir --update"
     - require:
-      {%- if auth.get('ldap', {}).get('enabled', False) %}
+        {%- if auth.get('ldap', {}).get('enabled', False) %}
       - pkg: linux_auth_ldap_packages
-      {%- endif %}
-    {%- else %}
+        {%- endif %}
+      {%- else %}
 linux_auth_config_disable_mkhomedir:
   cmd.run:
     - name: "authconfig --disablemkhomedir --update"
     - require:
       - pkg: linux_auth_ldap_packages
-    {%- endif %}
-    {%- if auth.get('ldap', {}).get('enabled', False) %}
+      {%- endif %}
+      {%- if auth.get('ldap', {}).get('enabled', False) %}
 linux_auth_config_enable_ldap:
   cmd.run:
     - name: "authconfig --enableldap --enableldapauth --update"
     - require:
-      {%- if auth.get('ldap', {}).get('enabled', False) %}
+        {%- if auth.get('ldap', {}).get('enabled', False) %}
       - pkg: linux_auth_ldap_packages
-      {%- endif %}
-    {%- else %}
+        {%- endif %}
+      {%- else %}
 linux_auth_config_disable_ldap:
   cmd.run:
     - name: "authconfig --disableldap --disableldapauth --update"
     - require:
       - pkg: linux_auth_ldap_packages
+      {%- endif %}
     {%- endif %}
-  {%- endif %}
 
-  {%- if auth.get('ldap', {}).get('enabled', False) %}
+    {%- if auth.get('ldap', {}).get('enabled', False) %}
 
 linux_auth_nsswitch_config_file:
   file.managed:
@@ -187,6 +191,6 @@
   - enable: true
   - name: nslcd
 
+    {%- endif %}
   {%- endif %}
-
 {%- endif %}
diff --git a/linux/system/auth/duo.sls b/linux/system/auth/duo.sls
new file mode 100644
index 0000000..5270d8d
--- /dev/null
+++ b/linux/system/auth/duo.sls
@@ -0,0 +1,36 @@
+{%- if grains['os'] == 'Ubuntu' %}
+
+package_duo:
+  pkg.installed:
+    - name: duo-unix
+
+login_duo:
+  file.managed:
+    - name: /etc/duo/login_duo.conf
+    - source: salt://linux/files/login_duo.conf
+    - template: jinja
+    - user: 'root'
+    - group: 'root'
+    - mode: '0600'
+
+
+pam_duo:
+  file.managed:
+    - name: /etc/duo/pam_duo.conf
+    - source: salt://linux/files/login_duo.conf
+    - template: jinja
+    - user: 'root'
+    - group: 'root'
+    - mode: '0600'
+
+pam-sshd_config:
+  file.managed:
+  - name: /etc/pam.d/sshd
+  - user: root
+  - group: root
+  - source: salt://linux/files/pam-sshd
+  - mode: 600
+  - template: jinja
+
+{%- endif %}
+
diff --git a/tests/pillar/system_duo.sls b/tests/pillar/system_duo.sls
new file mode 100644
index 0000000..114324e
--- /dev/null
+++ b/tests/pillar/system_duo.sls
@@ -0,0 +1,212 @@
+linux:
+  network:
+    enabled: false
+    hostname: linux
+    fqdn: linux.ci.local
+  system:
+    enabled: true
+    at:
+      enabled: false
+      user:
+        root:
+          enabled: true
+        testuser:
+          enabled: true
+    cron:
+      enabled: false
+      user:
+        root:
+          enabled: false
+    cluster: default
+    name: linux
+    domain: ci.local
+    environment: prd
+    purge_repos: true
+    directory:
+      /tmp/test:
+        makedirs: true
+    apparmor:
+      enabled: false
+    haveged:
+      enabled: true
+    prompt:
+      default: "linux.ci.local$"
+    package:
+      htop:
+        version: latest
+    repo:
+      disabled_repo:
+        source: "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable"
+        enabled: false
+      disabled_repo_left_proxy:
+        source: "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable"
+        enabled: false
+        proxy:
+          enabled: true
+          https: https://127.0.5.1:443
+      saltstack:
+        source: "deb [arch=amd64] http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2017.7/ xenial main"
+        key_url: "http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2017.7/SALTSTACK-GPG-KEY.pub"
+        architectures: amd64
+        clean_file: true
+        pinning:
+          10:
+            enabled: true
+            pin: 'release o=SaltStack'
+            priority: 50
+            package: 'libsodium18'
+          20:
+            enabled: true
+            pin: 'release o=SaltStack'
+            priority: 1100
+            package: '*'
+      apt-salt:
+        source: "deb http://apt.mirantis.com/xenial stable salt"
+        #key_url: http://apt.mirantis.com/public.gpg
+        # pub   4096R/A76882D3 2015-06-17
+        key: |
+          -----BEGIN PGP PUBLIC KEY BLOCK-----
+          Version: GnuPG v1
+
+          mQINBFWBfCIBEADf6lnsY9v4rf/x0ribkFlnHnsv1/yD+M+YgZoQxYdf6b7M4/PY
+          zZ/c3uJt4l1vR3Yoocfc1VgtBNfA1ussBqXdmyRBMO1LKdQWnurNxWLW7CwcyNke
+          xeBfhjOqA6tIIXMfor7uUrwlIxJIxK+jc3C3nhM46QZpWX5d4mlkgxKh1G4ZRj4A
+          mEo2NduLUgfmF+gM1MmAbU8ekzciKet4TsM64WAtHyYllGKvuFSdBjsewO3McuhR
+          i1Desb5QdfIU4p3gkIa0EqlkkqX4rowo5qUnl670TNTTZHaz0MxCBoYaGbGhS7gZ
+          6/PLm8fJHmU/phst/QmOY76a5efZWbhhnlyYLIB8UjywN+VDqwkNk9jLUSXHTakh
+          dnL4OuGoNpIzms8juVFlnuOmx+FcfbHMbhAc7aPqFK+6J3YS4kJSfeHWJ6cTGoU1
+          cLWEhsbU3Gp8am5fnh72RJ7v2sTe/rvCuVtlNufi5SyBPcEUZoxFVWAC/hMeiWzy
+          drBIVC73raf+A+OjH8op9XfkVj6czxQ/451soe3jvCDGgTXPLlts+P5WhgWNpDPa
+          fOfTHn/2o7NwoM7Vp+BQYKAQ78phsolvNNhf+g51ntoLUbxAGKZYzQ5RPsKo+Hq6
+          96UCFkqhSABk0DvM0LtquzZ+sNoipd02w8EaxQzelDJxvPFGigo1uqGoiQARAQAB
+          tCx0Y3BjbG91ZCBzaWduaW5nIGtleSA8YXV0b2J1aWxkQHRjcGNsb3VkLmV1PokC
+          OwQTAQIAJQIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AFAlWj4K8CGQEACgkQ
+          JACFCadogtPm9xAAl1D1RUY1mttjKk+8KI3tUmgtqLaIGUcB4TPbIhQpFy23TJd6
+          BnnEaGZ+HSCj3lp/dBoq1xxCqHCziKA04IpPaLpGJf8cqaKOpQpW1ErlSxT6nCQW
+          FrHFxZreBTljKqW3fvRBXNAquj0krJEwv19/3SsQ+CJI2Zkq/HPDw9eJOCu0WcJM
+          PVtAq2SmaDigh1jtFcFoWZ7uFFMQPIWit/RCPkDfkFaf6lbYZ/nnvWON9OAgzWci
+          GJjCp5a7vMyCpTRy6bgNPqM61omCe0iQ4yIcqANXhRYS/DBnjKr9YaDKnlKNUgd1
+          WRE8QzErQznH/plgISQ+df+8Iunp3SBr/jj1604yyM1Wxppn1+dAoTBU1OPFGVd3
+          mCEYHUe+v0iTZ69C2c1ISmp2MjciGyE/UPbW9ejUIXtFJAJovZjn6P3glyIQB3wq
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+          +Cfu4vNef/Tpd3LHcUoQhQ2OViOVFbq1/Yu/natWDPDcXb3peTcNHOjmXAoboWbz
+          rDkxj5z7vcJ9LMEXviP6Fb/iXDmJh74/o6Agc8efb0WTmFjPFFtMCHrinb+5Ag0E
+          VYF8IgEQALUVS2GESQ+F1S4b0JIO1M2tVBXiH4N56eUzcDXxXbSZgCgx4aWhk5vJ
+          Qu7M11gtqIoiRbmuFpUmDOG/kB7DxBZPn8WqcBKpky6GUP/A/emaAZTwNQdcDAhD
+          foBkJdhVz0D2jnkBffYL055p/r1Ers+iTTNOas/0uc50C32xR823rQ2Nl6/ffIM6
+          JqfQenhRvqUWPj9oqESHMsqEdceSwS/VC7RN4xQXJXfEWu2q4Ahs62RmvCXnTw1A
+          sPcpysoBoo8IW+V1MVQEZuAJRn2AGO/Q7uY9TR4guHb3wXRfZ3k0KVUsyqqdusJi
+          T3DxxBw6GcKdOH6t41Ys3eYgOrc+RcSdcHYSpxaLvEIhwzarZ+mqcp3gz/JkPlXS
+          2tx2l6NZHcgReOM7IhqMuxzBbpcrsbBmLBemC+u7hoPTjUdTHKEwvWaeXL4vgsqQ
+          BbEeKmXep5sZg3kHtpXzY9ZfPQrtGB8vHGrfaZIcCKuXwZWGL5GGWKw3TSP4fAIA
+          jLxLf5MyyXcsugbai2OY/H4sAuvJHsmGtergGknuR+iFdt5el1wgRKP1r1KdmvMm
+          wsSayc6eSEKd689x3zsmAtnhYM31oMkPdeYRbnN15gLG7vcsVe4jug0YTqQt2WGn
+          hwjBA0i2qfTorXemWChsxKllvY9aB3ST8I6RMat0kS08FMD+Ced/ABEBAAGJAh8E
+          GAECAAkFAlWBfCICGwwACgkQJACFCadogtNicA/9HOM402VGHlmuYPcrvEThHqMK
+          KOTtNFsrrPp67dGYaT8TGTgy1OG4Oys2y+hrwqnUK6dXJxX2/RBfRuO/gw65RCfC
+          9nWeMkqJTjHJCKNTYfXN4O4ag444UZPcOMq+IyiWF3/sh674zCkCm5DQ/FH8IJ8Y
+          n4jMoxe7G48PCGtgcJKXo8NBzxwXJH4DCdk7rNdrbrnCwObG8h6530WrmzKuyFCJ
+          QP5JA0MSx23J2OrK2YmVMhTeO0czJ8fRip9We9/qAfZGUEW+sey+nLmT5OJq04al
+          Va9g2a4nXxzDy84+hRXQNUeCRYn/ys8d8q9HZNv3K36HlILcuWazNTTh0cuWupBd
+          SlIEuWbIdbknYpGsmS1cPeGi0bdoLZv90BIVmdOS/vXP02fGUblyANciKcBPRhOI
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+          =SWiA
+          -----END PGP PUBLIC KEY BLOCK-----
+        architectures: amd64
+        proxy:
+          enabled: true
+      apt-salt-nightly:
+        source: "deb http://apt.mirantis.com/xenial nightly salt"
+        key_url: http://apt.mirantis.com/public.gpg
+        architectures: amd64
+        proxy:
+          enabled: false
+      apt-extra-nightly:
+        source: "deb http://apt.mirantis.com/xenial nightly extra"
+        key_url: http://apt.mirantis.com/public.gpg
+        architectures: amd64
+      duo:
+        key: |
+          -----BEGIN PGP PUBLIC KEY BLOCK-----
+          Version: GnuPG v2.0.22 (GNU/Linux)
+
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+          -----END PGP PUBLIC KEY BLOCK-----
+        source: "deb [arch=amd64] http://pkg.duosecurity.com/Ubuntu xenial main"
+        architectures: amd64
+    locale:
+      en_US:
+        enabled: true
+        default: true
+      cs_CZ:
+        enabled: true
+    autoupdates:
+      enabled: true
+    sudo:
+      enabled: false
+    env:
+      BOB_VARIABLE: Alice
+      LANG: C
+      LC_ALL: C
+    login_defs:
+      PASS_MAX_DAYS:
+        value: 99
+    shell:
+      umask: '027'
+      timeout: 900
+    profile:
+      vi_flavors.sh: |
+        export PAGER=view
+        alias vi=vim
+      locales: |
+        export LANG=en_US
+        export LC_ALL=en_US.UTF-8
+    auth:
+      enabled: true
+      duo:
+        enabled: true
+        duo_host: localhost
+        duo_ikey: DUO-INTEGRATION-KEY
+        duo_skey: DUO-SECRET-KEY
+