diff --git a/README b/README
index 1449e9b..b9ecfbd 100644
--- a/README
+++ b/README
@@ -1,6 +1,6 @@
 # Installation
 
-    apt-get install libldap2-dev python-dev libmysqlclient-dev libsasl2-dev libldap2-dev libssl-dev ldap-utils
+    apt-get install libldap2-dev python-dev libmysqlclient-dev libsasl2-dev libldap2-dev libssl-dev ldap-utils redis-server
     virtualenv venv
     . venv/bin/activate
     pip install -r requirements.txt
diff --git a/neuf_userinfo/management/commands/copy_hashes.py b/neuf_userinfo/management/commands/copy_hashes.py
new file mode 100644
index 0000000..23037ff
--- /dev/null
+++ b/neuf_userinfo/management/commands/copy_hashes.py
@@ -0,0 +1,18 @@
+# coding: utf-8
+from __future__ import unicode_literals
+from django.core.management.base import BaseCommand
+
+from inside.models import InsideUser
+from neuf_ldap.models import LdapUser
+
+
+class Command(BaseCommand):
+    """ Copy all LDAP users password hashes from to Inside users without one """
+    def handle(self, *args, **options):
+        ldap_user_passwords = dict(LdapUser.objects.values_list('username', 'password'))
+        inside_users = InsideUser.objects.filter(ldap_password=None).exclude(ldap_username=None)
+        for u in inside_users:
+            ldap_password = ldap_user_passwords.get(u.ldap_username)
+            if ldap_password is not None:
+                u.ldap_password = ldap_password
+                u.save()
diff --git a/neuf_userinfo/tasks.py b/neuf_userinfo/tasks.py
new file mode 100644
index 0000000..27d463f
--- /dev/null
+++ b/neuf_userinfo/tasks.py
@@ -0,0 +1,9 @@
+from __future__ import absolute_import
+
+from celery import shared_task
+
+
+@shared_task
+def add_new_user(user):
+    from neuf_userinfo.utils import add_new_user_sync
+    add_new_user_sync(user)
\ No newline at end of file
diff --git a/neuf_userinfo/utils.py b/neuf_userinfo/utils.py
index 14a6f30..8a1b09f 100644
--- a/neuf_userinfo/utils.py
+++ b/neuf_userinfo/utils.py
@@ -12,7 +12,7 @@ import logging
 logger = logging.getLogger(__name__)
 
 
-def add_new_user(user):
+def add_new_user_sync(user):
     """
         - Create new user in LDAP (username, first_name, last_name, email)
         - Add to groups (usergroup, dns-alle), it not exists, create
diff --git a/neuf_userinfo/views.py b/neuf_userinfo/views.py
index c3adfe5..bbb6720 100644
--- a/neuf_userinfo/views.py
+++ b/neuf_userinfo/views.py
@@ -18,7 +18,8 @@ import logging
 
 from inside.models import InsideUser
 from neuf_userinfo.forms import NewUserForm
-from neuf_userinfo.utils import add_new_user
+from neuf_userinfo.tasks import add_new_user
+from neuf_userinfo.utils import add_new_user_sync
 
 logger = logging.getLogger(__name__)
 
@@ -125,7 +126,11 @@ class AddNewUserView(View):
 
         user = form.cleaned_data
         logger.debug('Adding user \'{}\'.'.format(user['username']))
-        add_new_user(user)
+
+        if settings.INSIDE_USERSYNC_RUN_SYNC:
+            add_new_user_sync(user)
+        else:
+            add_new_user.delay(user)  # Async
 
         return JsonResponse({'results': 'success'})
 
diff --git a/requirements.txt b/requirements.txt
index daa8a48..68e385f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ Fabric==1.10.1
 mysqlclient==1.3.5
 passlib==1.6.2
 python-ldap==2.4.15
+celery[redis]==3.1.17
diff --git a/userinfosite/__init__.py b/userinfosite/__init__.py
index e69de29..ba87500 100644
--- a/userinfosite/__init__.py
+++ b/userinfosite/__init__.py
@@ -0,0 +1,2 @@
+from __future__ import absolute_import
+from .celery import app as celery_app
\ No newline at end of file
diff --git a/userinfosite/celery.py b/userinfosite/celery.py
new file mode 100644
index 0000000..a222e08
--- /dev/null
+++ b/userinfosite/celery.py
@@ -0,0 +1,15 @@
+from __future__ import absolute_import
+
+import os
+from celery import Celery
+from django.conf import settings
+
+# set the default Django settings module for the 'celery' program.
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'userinfosite.settings')
+
+app = Celery('userinfosite')
+
+# Using a string here means the worker will not have to
+# pickle the object when using Windows.
+app.config_from_object('django.conf:settings')
+app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)
\ No newline at end of file
diff --git a/userinfosite/settings.py b/userinfosite/settings.py
index a6b2af1..61ee79e 100644
--- a/userinfosite/settings.py
+++ b/userinfosite/settings.py
@@ -144,9 +144,9 @@ EMAIL_PORT = 25
 DEFAULT_FROM_EMAIL = 'noreply@neuf.no'
 
 AUTHENTICATION_BACKENDS = (
-    # 'inside.authentication.InsideBackend',
-    'neuf_userinfo.backends.LDAPEmailBackend',
-    'neuf_userinfo.backends.LDAPUsernameBackend',
+    'inside.authentication.InsideBackend',
+    # 'neuf_userinfo.backends.LDAPEmailBackend',
+    # 'neuf_userinfo.backends.LDAPUsernameBackend',
     'django.contrib.auth.backends.ModelBackend',
 )
 # No cleaningladies.
@@ -209,8 +209,10 @@ INSIDE_USER_FLAGS_SYNC = {
     # "is_superuser": "edbadmin"
 }
 INSIDE_GROUPS_SYNC_DELETE = True  # When user logs in, groups are synced (locally in Django), this deletes aswell
+
 INSIDE_USERSYNC_API_KEY = ''
 INSIDE_USERSYNC_ENC_KEY = ''
+INSIDE_USERSYNC_RUN_SYNC = True
 
 # Home dir
 FILESERVER_HOST = "localhost"
@@ -232,6 +234,13 @@ REST_FRAMEWORK = {
     'PAGINATE_BY': 10
 }
 
+# CELERY SETTINGS
+BROKER_URL = 'redis://localhost:6379/0'
+CELERY_ACCEPT_CONTENT = ['json']
+CELERY_TASK_SERIALIZER = 'json'
+CELERY_RESULT_SERIALIZER = 'json'
+
+
 try:
     from local_settings import *
 except ImportError: