diff --git a/ipv6work/settings.py b/ipv6work/settings.py
index 91b852e..5e7ba83 100644
--- a/ipv6work/settings.py
+++ b/ipv6work/settings.py
@@ -220,7 +220,7 @@ LDAP_MAX_UID_PATH = os.path.join(
     'ldap_max_uid_file'
 )
 
-IPV6_WORK_USER_GROUP = config('IPV6_WORK_USER_GROUP', cast=int)
+LDAP_IPV6_WORK_USER_GROUP = config('LDAP_IPV6_WORK_USER_GROUP', cast=int)
 
 
 def set_max_uid(max_uid):
diff --git a/users/ldap_funcs.py b/users/ldap_funcs.py
index 507d8e3..e62721f 100644
--- a/users/ldap_funcs.py
+++ b/users/ldap_funcs.py
@@ -1,17 +1,38 @@
 from django.conf import settings
-from ldap3 import Server, ServerPool, Connection, ObjectDef, AttrDef, Reader, Writer
+from ldap3 import Server, Connection, ObjectDef, Writer, SUBTREE
+import logging
 
+logger = logging.getLogger(__name__)
 server = Server(settings.AUTH_LDAP_SERVER_URI)
 
 
-
 def create_user(user, password, firstname, lastname, email):
     conn = Connection(server, settings.AUTH_LDAP_BIND_DN,
                       settings.AUTH_LDAP_BIND_PASSWORD)
     if not conn.bind():
+        logger.error("conn.bind() returned False. Could not connect.")
         raise Exception('Could not connect to LDAP Server')
-    obj_new_user = ObjectDef(
-        ['inetOrgPerson'], conn)
+    obj_new_user = ObjectDef(['inetOrgPerson', 'posixAccount'], conn)
+    uid = settings.get_max_uid() + 1
+    results = True
+    while results:
+        results = conn.search(
+            search_base=settings.LDAP_SEARCH_BASE,
+            search_filter=(
+                '(&(objectClass=inetOrgPerson)(objectClass=posixAccount)'
+                '(objectClass=top)(uidNumber={uidNumber}))'.format(
+                    uidNumber=uid
+                )
+            ),
+            search_scope=SUBTREE,
+            attributes=['uidNumber'],
+        )
+        if results:
+            logger.debug("{uid} exists. Trying next.".format(uid=uid))
+            uid += 1
+        else:
+            logger.debug("{uid} does not exist. Using it".format(uid=uid))
+
     w = Writer(conn, obj_new_user)
     dn = 'uid=%s,ou=users,dc=ungleich,dc=ch' % user
     w.new(dn)
@@ -20,9 +41,13 @@ def create_user(user, password, firstname, lastname, email):
     w[0].cn = firstname + " " + lastname
     w[0].mail = email
     w[0].userPassword = password
+    w[0].gidNumber = settings.IPV6_WORK_USER_GROUP
+    w[0].uidNumber = uid
+    w[0].homeDirectory = "/home/" + user
 
     if not w.commit():
         conn.unbind()
+        logger.error("w.commit() returned False. Could not write user.")
         raise Exception("Couldn't write user")
     conn.unbind()
     return True