diff --git a/cms/djangoapps/contentstore/views/public.py b/cms/djangoapps/contentstore/views/public.py
index 63f95084aa..da805a7bd7 100644
--- a/cms/djangoapps/contentstore/views/public.py
+++ b/cms/djangoapps/contentstore/views/public.py
@@ -44,6 +44,10 @@ def login_page(request):
         # to course now that the user is authenticated via
         # the decorator.
         return redirect('/course')
+    if settings.FEATURES.get('AUTH_USE_CAS'):
+        # If CAS is enabled, redirect auth handling to there
+        return redirect(reverse('cas-login'))
+
     return render_to_response(
         'login.html',
         {
diff --git a/cms/envs/aws.py b/cms/envs/aws.py
index 3147ad3cd7..383d6925e0 100644
--- a/cms/envs/aws.py
+++ b/cms/envs/aws.py
@@ -181,6 +181,16 @@ PLATFORM_NAME = ENV_TOKENS.get('PLATFORM_NAME', 'edX')
 if "TRACKING_IGNORE_URL_PATTERNS" in ENV_TOKENS:
     TRACKING_IGNORE_URL_PATTERNS = ENV_TOKENS.get("TRACKING_IGNORE_URL_PATTERNS")
 
+# Django CAS external authentication settings
+CAS_EXTRA_LOGIN_PARAMS = ENV_TOKENS.get("CAS_EXTRA_LOGIN_PARAMS", None)
+if FEATURES.get('AUTH_USE_CAS'):
+    CAS_SERVER_URL = ENV_TOKENS.get("CAS_SERVER_URL", None)
+    AUTHENTICATION_BACKENDS = (
+        'django.contrib.auth.backends.ModelBackend',
+        'django_cas.backends.CASBackend',
+    )
+    INSTALLED_APPS += ('django_cas',)
+    MIDDLEWARE_CLASSES += ('django_cas.middleware.CASMiddleware',)
 
 ################ SECURE AUTH ITEMS ###############################
 # Secret things: passwords, access keys, etc.
diff --git a/cms/urls.py b/cms/urls.py
index 65d19e83f7..063995117e 100644
--- a/cms/urls.py
+++ b/cms/urls.py
@@ -115,6 +115,12 @@ if settings.FEATURES.get('ENABLE_SERVICE_STATUS'):
         url(r'^status/', include('service_status.urls')),
     )
 
+if settings.FEATURES.get('AUTH_USE_CAS'):
+    urlpatterns += (
+        url(r'^cas-auth/login/$', 'external_auth.views.cas_login', name="cas-login"),
+        url(r'^cas-auth/logout/$', 'django_cas.views.logout', {'next_page': '/'}, name="cas-logout"),
+    )
+
 urlpatterns += patterns('', url(r'^admin/', include(admin.site.urls)),)
 
 # enable automatic login
diff --git a/common/djangoapps/student/views.py b/common/djangoapps/student/views.py
index 2c802d3f4f..eacad70210 100644
--- a/common/djangoapps/student/views.py
+++ b/common/djangoapps/student/views.py
@@ -344,6 +344,9 @@ def signin_user(request):
         # branding and allow that to process the login if it
         # is enabled and the header is in the request.
         return redirect(reverse('root'))
+    if settings.FEATURES.get('AUTH_USE_CAS'):
+        # If CAS is enabled, redirect auth handling to there
+        return redirect(reverse('cas-login'))
     if request.user.is_authenticated():
         return redirect(reverse('dashboard'))
 
diff --git a/lms/envs/aws.py b/lms/envs/aws.py
index ee424f84cc..373704b5e2 100644
--- a/lms/envs/aws.py
+++ b/lms/envs/aws.py
@@ -258,6 +258,17 @@ SSL_AUTH_EMAIL_DOMAIN = ENV_TOKENS.get("SSL_AUTH_EMAIL_DOMAIN", "MIT.EDU")
 SSL_AUTH_DN_FORMAT_STRING = ENV_TOKENS.get("SSL_AUTH_DN_FORMAT_STRING",
                                            "/C=US/ST=Massachusetts/O=Massachusetts Institute of Technology/OU=Client CA v1/CN={0}/emailAddress={1}")
 
+# Django CAS external authentication settings
+CAS_EXTRA_LOGIN_PARAMS = ENV_TOKENS.get("CAS_EXTRA_LOGIN_PARAMS", None)
+if FEATURES.get('AUTH_USE_CAS'):
+    CAS_SERVER_URL = ENV_TOKENS.get("CAS_SERVER_URL", None)
+    AUTHENTICATION_BACKENDS = (
+        'django.contrib.auth.backends.ModelBackend',
+        'django_cas.backends.CASBackend',
+    )
+    INSTALLED_APPS += ('django_cas',)
+    MIDDLEWARE_CLASSES += ('django_cas.middleware.CASMiddleware',)
+
 HOSTNAME_MODULESTORE_DEFAULT_MAPPINGS = ENV_TOKENS.get('HOSTNAME_MODULESTORE_DEFAULT_MAPPINGS',{})
 
 ############################## SECURE AUTH ITEMS ###############
diff --git a/lms/envs/common.py b/lms/envs/common.py
index 1b8ebb3eae..d08f4be9ac 100644
--- a/lms/envs/common.py
+++ b/lms/envs/common.py
@@ -1199,17 +1199,6 @@ VERIFY_STUDENT = {
 if FEATURES.get('CLASS_DASHBOARD'):
     INSTALLED_APPS += ('class_dashboard',)
 
-######################## CAS authentication ###########################
-
-if FEATURES.get('AUTH_USE_CAS'):
-    CAS_SERVER_URL = 'https://provide_your_cas_url_here'
-    AUTHENTICATION_BACKENDS = (
-        'django.contrib.auth.backends.ModelBackend',
-        'django_cas.backends.CASBackend',
-    )
-    INSTALLED_APPS += ('django_cas',)
-    MIDDLEWARE_CLASSES += ('django_cas.middleware.CASMiddleware',)
-
 ###################### Registration ##################################
 
 # For each of the fields, give one of the following values: