diff --git a/cookbooks/arcgis-enterprise/attributes/portal_authentication.rb b/cookbooks/arcgis-enterprise/attributes/portal_authentication.rb
new file mode 100644
index 0000000..7dd6396
--- /dev/null
+++ b/cookbooks/arcgis-enterprise/attributes/portal_authentication.rb
@@ -0,0 +1,5 @@
+default['arcgis']['portal']['authentication'].tap do |portal_authentication|
+  portal_authentication['disable_signup'] = false
+  portal_authentication['configure_active_directory_users'] = false
+  portal_authentication['enable_single_sign_on'] = false
+end
\ No newline at end of file
diff --git a/cookbooks/arcgis-enterprise/libraries/portal_admin_client.rb b/cookbooks/arcgis-enterprise/libraries/portal_admin_client.rb
index 01acf74..f78cc84 100644
--- a/cookbooks/arcgis-enterprise/libraries/portal_admin_client.rb
+++ b/cookbooks/arcgis-enterprise/libraries/portal_admin_client.rb
@@ -237,6 +237,24 @@ def set_server_ssl_certificate(cert_alias)
 
       validate_response(response)
     end
+    
+    def set_all_ssl(https_only)
+      request = Net::HTTP::Post.new(URI.parse(@portal_url +
+        "/sharing/rest/portals/self/update").request_uri)
+
+      request.add_field('Referer', 'referer')
+
+      token = generate_token(@portal_url + '/sharing/generateToken')
+
+      request.set_form_data(
+        'allSSL' => https_only,
+        'token' => token,
+        'f' => 'json')
+
+      response = send_request(request)
+
+      validate_response(response)
+    end
 
     def content_dir
       token = generate_token(@portal_url + '/sharing/generateToken')
@@ -371,6 +389,24 @@ def update_system_properties(system_properties)
 
       validate_response(response)
     end
+    
+    def get_system_properties
+      token = generate_token(@portal_url + '/sharing/generateToken')
+      
+      uri = URI.parse(@portal_url + '/portaladmin/system/properties')
+      uri.query = URI.encode_www_form('token' => token,
+                                      'f' => 'json')
+
+      request = Net::HTTP::Get.new(uri.request_uri)
+      request.add_field('Referer', 'referer')
+
+      response = send_request(request)
+
+      validate_response(response)
+      system_properties = JSON.parse(response.body)
+      
+      return system_properties
+    end
 
     def webadaptors_shared_key
       uri = URI.parse(@portal_url + '/portaladmin/system/webadaptors/config/')
@@ -443,6 +479,41 @@ def edit_log_settings(log_level, log_dir, max_log_file_age)
 
       validate_response(response)
     end
+    
+    def get_security_configuration
+      token = generate_token(@portal_url + '/sharing/generateToken')
+      
+      uri = URI.parse(@portal_url + '/portaladmin/security/config')
+      uri.query = URI.encode_www_form('token' => token,
+                                      'f' => 'json')
+
+      request = Net::HTTP::Get.new(uri.request_uri)
+      request.add_field('Referer', 'referer')
+
+      response = send_request(request)
+
+      validate_response(response)
+      security_configuration = JSON.parse(response.body)
+      
+      return security_configuration
+    end
+    
+    def set_identity_store(user_store_config, group_store_config)
+      request = Net::HTTP::Post.new(URI.parse(@portal_url + '/portaladmin/security/config/updateIdentityStore').request_uri)
+      
+      request.add_field('Referer', 'referer')
+      
+      token = generate_token(@portal_url + '/sharing/generateToken')
+      
+      request.set_form_data('userStoreConfig' => user_store_config.to_json,
+                            'groupStoreConfig' => group_store_config.to_json,
+                            'token' => token, 
+                            'f' => 'json')
+
+      response = send_request(request)
+
+      validate_response(response)
+    end
 
     private
 
diff --git a/cookbooks/arcgis-enterprise/providers/portal_authentication.rb b/cookbooks/arcgis-enterprise/providers/portal_authentication.rb
new file mode 100644
index 0000000..781e5bc
--- /dev/null
+++ b/cookbooks/arcgis-enterprise/providers/portal_authentication.rb
@@ -0,0 +1,85 @@
+action :disable_signup do
+  portal_admin_client = ArcGIS::PortalAdminClient.new(
+    @new_resource.portal_url,
+    @new_resource.username,
+    @new_resource.password)
+
+  portal_admin_client.wait_until_available
+
+  # avoid loosing existing system properties
+  # => get all existing system properties and append the new one
+  system_properties = portal_admin_client.get_system_properties
+  system_properties['disableSignup'] = true
+
+  portal_admin_client.update_system_properties(system_properties)
+  
+  # after updating the system properties, Portal get's restarted automatically
+  # => wait until Portal is available again before continuing
+  sleep(90.0)
+
+  new_resource.updated_by_last_action(true)
+end
+
+action :use_windows_users do
+  portal_admin_client = ArcGIS::PortalAdminClient.new(
+    @new_resource.portal_url,
+    @new_resource.username,
+    @new_resource.password)
+
+  portal_admin_client.wait_until_available
+  
+  security_configuration = portal_admin_client.get_security_configuration
+
+  user_store_config = {
+    'type' => "WINDOWS",
+    'properties' => {
+      'isPasswordEncrypted' => false,
+      'user' => @new_resource.active_directory_username,
+      'userPassword' => @new_resource.active_directory_password
+    }
+  }
+  
+  group_store_config = security_configuration['groupStoreConfig']
+      
+  portal_admin_client.set_identity_store(user_store_config, group_store_config)
+
+  portal_admin_client.wait_until_available
+end
+
+action :enable_iis_windows_authentication do
+  portal_wa_name = @new_resource.wa_name
+  execute 'Enable Windows Authentication for Portal within IIS' do
+    command "%systemroot%\\system32\\inetsrv\\appcmd.exe set config \"Default Web Site/#{portal_wa_name}\" -section:system.webServer/security/authentication/windowsAuthentication /enabled:\"True\" /commit:apphost"
+  end
+end
+
+action :disable_iis_anonymous_authentication do
+  portal_wa_name = @new_resource.wa_name
+  execute 'Disable Anonymous Authentication for Portal within IIS' do
+    command "%systemroot%\\system32\\inetsrv\\appcmd.exe set config \"Default Web Site/#{portal_wa_name}\" -section:system.webServer/security/authentication/anonymousAuthentication /enabled:\"False\" /commit:apphost"
+  end
+end
+
+action :add_iis_ie11_compatibility_header do
+  portal_wa_name = @new_resource.wa_name
+  ruby_block 'Add IE 11 Compatibility Header' do
+    block do
+      # get Portal's current configuration within IIS
+      Chef::Resource::RubyBlock.send(:include, Chef::Mixin::ShellOut)      
+      command = "%systemroot%\\system32\\inetsrv\\appcmd.exe list config \"Default Web Site/#{portal_wa_name}\" -section:system.webServer/httpProtocol"
+      command_out = shell_out(command)
+      command_out.error!
+      command_stdout = command_out.stdout
+      
+      # check whether the Compatibility Header is already set
+      if (command_stdout.include? "X-UA-Compatible") && (command_stdout.include? "IE=11")
+        Chef::Log.info('IE 11 Compatibility Header is already configured for Portal')
+      else
+        command = "%systemroot%\\system32\\inetsrv\\appcmd.exe set config \"Default Web Site/#{portal_wa_name}\" -section:system.webServer/httpProtocol /+customHeaders.[name='X-UA-Compatible',value='IE=11']"
+        command_out = shell_out(command)
+        command_out.error!
+      end
+    end
+    action :create
+  end
+end
\ No newline at end of file
diff --git a/cookbooks/arcgis-enterprise/recipes/portal_authentication.rb b/cookbooks/arcgis-enterprise/recipes/portal_authentication.rb
new file mode 100644
index 0000000..87b3dfc
--- /dev/null
+++ b/cookbooks/arcgis-enterprise/recipes/portal_authentication.rb
@@ -0,0 +1,36 @@
+arcgis_enterprise_portal_authentication 'Disabling users ability to create built-in Portal accounts' do
+  portal_url node['arcgis']['portal']['url']
+  username node['arcgis']['portal']['admin_username']
+  password node['arcgis']['portal']['admin_password']
+  only_if { node['arcgis']['portal']['authentication']['disable_signup'] }
+  action :disable_signup
+end
+
+if node['platform'] == 'windows'
+  arcgis_enterprise_portal_authentication 'Configure Portal to use Active Directory for user accounts' do
+    portal_url node['arcgis']['portal']['url']
+    username node['arcgis']['portal']['admin_username']
+    password node['arcgis']['portal']['admin_password']
+    active_directory_username node['arcgis']['run_as_user']
+    active_directory_password node['arcgis']['run_as_password']
+    only_if { node['arcgis']['portal']['authentication']['configure_active_directory_users'] }
+    action :use_windows_users
+  end
+  
+  arcgis_enterprise_portal_authentication 'Enable Windows Authentication within IIS (Single Sign-On)' do
+    wa_name node['arcgis']['portal']['wa_name']
+    only_if { node['arcgis']['portal']['authentication']['enable_single_sign_on'] }
+    action :enable_iis_windows_authentication
+  end
+  
+  arcgis_enterprise_portal_authentication 'Disable Anonymous Authentication within IIS (Single Sign-On)' do
+    wa_name node['arcgis']['portal']['wa_name']
+    only_if { node['arcgis']['portal']['authentication']['enable_single_sign_on'] }
+    action :disable_iis_anonymous_authentication
+  end
+  
+  arcgis_enterprise_portal_authentication 'Add IE 11 Compatibility Header to Portal config within IIS' do
+    wa_name node['arcgis']['portal']['wa_name']
+    action :add_iis_ie11_compatibility_header
+  end
+end
\ No newline at end of file
diff --git a/cookbooks/arcgis-enterprise/resources/portal_authentication.rb b/cookbooks/arcgis-enterprise/resources/portal_authentication.rb
new file mode 100644
index 0000000..2692ef3
--- /dev/null
+++ b/cookbooks/arcgis-enterprise/resources/portal_authentication.rb
@@ -0,0 +1,33 @@
+#
+# Cookbook Name:: arcgis-enterprise
+# Resource:: portal_authentication
+#
+# Copyright 2015 Esri
+#
+# 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.
+#
+
+actions :disable_signup, :use_windows_users, :disable_iis_anonymous_authentication,
+        :enable_iis_windows_authentication, :add_iis_ie11_compatibility_header
+
+attribute :portal_url, :kind_of => String
+attribute :wa_name, :kind_of => String
+attribute :username, :kind_of => String
+attribute :password, :kind_of => String
+attribute :active_directory_username, :kind_of => String
+attribute :active_directory_password, :kind_of => String
+
+def initialize(*args)
+  super
+  @action = :install
+end
diff --git a/roles/webgis-windows.json b/roles/webgis-windows.json
index 7afdca1..113687c 100644
--- a/roles/webgis-windows.json
+++ b/roles/webgis-windows.json
@@ -32,7 +32,12 @@
       "setup":"C:\\ArcGIS\\10.5\\Portal\\Setup.exe",
       "authorization_file":"C:\\ArcGIS\\10.5\\Authorization_Files\\Portal.prvc",
       "keystore_file":"C:\\keystore\\mydomain_com.pfx",
-      "keystore_password":"changeit"
+      "keystore_password":"changeit",
+      "authentication":{
+        "disable_signup":true,
+        "enable_single_sign_on":true,
+        "configure_active_directory_users":true
+      }
     }
   },
   "run_list":[
@@ -43,6 +48,7 @@
     "recipe[arcgis-enterprise::datastore]",
     "recipe[arcgis-enterprise::portal]",
     "recipe[arcgis-enterprise::portal_wa]",
-    "recipe[arcgis-enterprise::federation]"
+    "recipe[arcgis-enterprise::federation]",
+    "recipe[arcgis-enterprise::portal_authentication]"
   ]
 }
\ No newline at end of file