diff --git a/.travis.yml b/.travis.yml
index fa5c702..be30c4e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,23 +23,23 @@ env:
       - TEST_OPTS=""
       - COVERAGE=""
     matrix:
-      - DJANGO=1.8.1
+      - DJANGO=1.11
 
 matrix:
   exclude:
     - python: "2.7"
-      env: DJANGO=1.8.1
+      env: DJANGO=1.11
     - python: "3.6"
-      env: DJANGO=1.8.1
-    - python: "3.6-dev"
-      env: DJANGO=1.8.1
-  include:
-    - python: "2.7"
-      env: DJANGO=1.8.1 COVERAGE="coverage run -m" TEST_K="not ddns_client" TEST_OPTS="--pep8"
-    - python: "3.6"
-      env: DJANGO=1.8.18
+      env: DJANGO=1.11
     - python: "3.6-dev"
       env: DJANGO=1.11
+  include:
+    - python: "2.7"
+      env: DJANGO=1.11 COVERAGE="coverage run -m" TEST_K="not ddns_client" TEST_OPTS="--pep8"
+    - python: "3.6"
+      env: DJANGO=1.11
+    - python: "3.6-dev"
+      env: DJANGO=2.0
 
 install:
     - ./scripts/travis/install.sh
diff --git a/nsupdate/accounts/_tests/test_accounts.py b/nsupdate/accounts/_tests/test_accounts.py
index e585bf3..90a3080 100644
--- a/nsupdate/accounts/_tests/test_accounts.py
+++ b/nsupdate/accounts/_tests/test_accounts.py
@@ -6,8 +6,7 @@ from __future__ import print_function
 
 import pytest
 
-from django.core.urlresolvers import reverse
-
+from django.urls import reverse
 
 USERNAME = 'test'
 PASSWORD = 'pass'
@@ -29,17 +28,16 @@ def test_views_anon(client):
         assert response.status_code == status_code
 
 
-def test_views_logged_in(client):
-    client.login(username=USERNAME, password=PASSWORD)
-    for view, kwargs, status_code in [
-        ('account_profile', dict(), 200),
-        ('account_settings', dict(), 200),
-        ('account_delete', dict(), 200),
-        ('registration_disallowed', dict(), 200),
-        ('registration_complete', dict(), 200),
-        ('registration_register', dict(), 200),
-        ('registration_activation_complete', dict(), 200),
-    ]:
-        print("%s, %s, %s" % (view, kwargs, status_code))
-        response = client.get(reverse(view, kwargs=kwargs))
-        assert response.status_code == status_code
+@pytest.mark.parametrize("view,view_kwargs,status_code", (
+    ('account_profile', dict(), 200),
+    ('account_settings', dict(), 200),
+    ('account_delete', dict(), 200),
+    ('registration_disallowed', dict(), 200),
+    ('registration_complete', dict(), 200),
+    ('registration_register', dict(), 302),
+    ('registration_activation_complete', dict(), 200),
+))
+def test_views_logged_in(client, view, view_kwargs, status_code):
+    assert client.login(username=USERNAME, password=PASSWORD)
+    response = client.get(reverse(view, kwargs=view_kwargs))
+    assert response.status_code == status_code
diff --git a/nsupdate/accounts/models.py b/nsupdate/accounts/models.py
index 8da8e06..50e35c6 100644
--- a/nsupdate/accounts/models.py
+++ b/nsupdate/accounts/models.py
@@ -19,7 +19,7 @@ class UserProfile(models.Model):
     stuff we need additionally to what Django stores in User model
     """
     user = models.OneToOneField(settings.AUTH_USER_MODEL, primary_key=True, related_name='profile',
-                                verbose_name=_('user'))
+                                verbose_name=_('user'), on_delete=models.CASCADE)
     language = models.CharField(max_length=10, choices=settings.LANGUAGES,
                                 default='', blank=True, null=True,
                                 verbose_name=_('language'))
diff --git a/nsupdate/accounts/templates/accounts/user_settings_account.html b/nsupdate/accounts/templates/accounts/user_settings_account.html
index 520d611..d673277 100644
--- a/nsupdate/accounts/templates/accounts/user_settings_account.html
+++ b/nsupdate/accounts/templates/accounts/user_settings_account.html
@@ -14,7 +14,7 @@
     {{ form|bootstrap_horizontal:"col-sm-3 col-lg-3" }}
     <div class="form-group">
     <div class="col-sm-offset-3 col-sm-8">
-        <input type="submit" class="btn btn-primary" value="{% trans 'Change my password' %}" /> <a href="{% url 'django.contrib.auth.views.password_reset' %}">{% trans 'Forgot your password?' %}</a>
+        <input type="submit" class="btn btn-primary" value="{% trans 'Change my password' %}" /> <a href="{% url 'password_reset' %}">{% trans 'Forgot your password?' %}</a>
     </div>
     </div>
 </form>
diff --git a/nsupdate/accounts/urls.py b/nsupdate/accounts/urls.py
index f996398..22f2676 100644
--- a/nsupdate/accounts/urls.py
+++ b/nsupdate/accounts/urls.py
@@ -1,4 +1,3 @@
-from django.conf.urls import patterns
 from django.conf.urls import url
 from django.views.generic.base import TemplateView
 
@@ -8,8 +7,7 @@ from registration.backends.default.views import RegistrationView
 from .views import UserProfileView, DeleteUserView, UserChangePasswordView
 
 
-urlpatterns = patterns(
-    '',
+urlpatterns = (
     url(r'^profile/', UserProfileView.as_view(), name="account_profile"),
     url(r'^settings/', UserChangePasswordView.as_view(), name='account_settings'),
     url(r'^delete/', DeleteUserView.as_view(), name="account_delete"),
diff --git a/nsupdate/accounts/views.py b/nsupdate/accounts/views.py
index 4ccbcb2..a02da32 100644
--- a/nsupdate/accounts/views.py
+++ b/nsupdate/accounts/views.py
@@ -7,7 +7,7 @@ from django.contrib.auth.decorators import login_required
 from django.utils.decorators import method_decorator
 from django.views.decorators.csrf import csrf_protect
 from django.views.decorators.debug import sensitive_post_parameters
-from django.core.urlresolvers import reverse, reverse_lazy
+from django.urls import reverse, reverse_lazy
 from django.shortcuts import redirect
 from django.contrib import messages
 from django.utils.translation import ugettext_lazy as _
diff --git a/nsupdate/api/_tests/test_api.py b/nsupdate/api/_tests/test_api.py
index 3d514ac..f6e072b 100644
--- a/nsupdate/api/_tests/test_api.py
+++ b/nsupdate/api/_tests/test_api.py
@@ -7,7 +7,7 @@ import pytest
 import base64
 from netaddr import IPSet, IPAddress, IPNetwork
 
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 
 from nsupdate.main.dnstools import query_ns, FQDN
 from nsupdate.main.models import Domain
diff --git a/nsupdate/login/templates/login.html b/nsupdate/login/templates/login.html
index 2a75f7d..ebe9cf8 100644
--- a/nsupdate/login/templates/login.html
+++ b/nsupdate/login/templates/login.html
@@ -10,7 +10,7 @@
         {% if form.errors %}
         <p>{% trans "Your username and password didn't match. Please try again." %}</p>
         {% endif %}
-        <form class="form-horizontal" role="form" method="post" action="{% url 'django.contrib.auth.views.login' %}">
+        <form class="form-horizontal" role="form" method="post" action="{% url 'login' %}">
             {% csrf_token %}
             {{ form|bootstrap_horizontal:"col-sm-3 col-lg-3" }}
             <div class="form-group">
@@ -21,7 +21,7 @@
             </div>
             <div class="form-group">
                 <div class="col-sm-offset-3 col-sm-9">
-                    <input type="submit" class="btn btn-primary" value="{% trans 'Log in' %}" /> <a href="{% url 'django.contrib.auth.views.password_reset' %}">{% trans 'Forgot your password?' %}</a>
+                    <input type="submit" class="btn btn-primary" value="{% trans 'Log in' %}" /> <a href="{% url 'password_reset' %}">{% trans 'Forgot your password?' %}</a>
                     <p></p>
                     <p><a href="{% url 'registration_register' %}">{% trans "Sign up for a new account..." %}</a></p>
                 </div>
diff --git a/nsupdate/login/templates/logout.html b/nsupdate/login/templates/logout.html
index d24bdbf..eab7aec 100644
--- a/nsupdate/login/templates/logout.html
+++ b/nsupdate/login/templates/logout.html
@@ -6,7 +6,7 @@
 <div class="container">
       <div class="form-signin">
           <p>{% trans "Thanks for spending some quality time with the Web site today." %}</p>
-          <p><a href="{% url 'django.contrib.auth.views.login' %}">{% trans 'Log in again' %}</a></p>
+          <p><a href="{% url 'login' %}">{% trans 'Log in again' %}</a></p>
       </div>
 </div>
 {% endblock %}
diff --git a/nsupdate/login/urls.py b/nsupdate/login/urls.py
index aecb748..9ecd129 100644
--- a/nsupdate/login/urls.py
+++ b/nsupdate/login/urls.py
@@ -1,21 +1,22 @@
 # -*- coding: utf-8 -*-
-from django.conf.urls import patterns, url
+from django.conf.urls import url
+from django.contrib.auth.views import login, logout, password_reset, password_reset_done, \
+    password_reset_confirm, password_reset_complete
 
-urlpatterns = patterns(
-    '',
+urlpatterns = (
     # login and logout url
-    url(r'^login/$', 'django.contrib.auth.views.login', {'template_name': 'login.html'}, name='login'),
-    # or use 'django.contrib.auth.views.logout' with template 'logout.html
-    url(r'^logout/$', 'django.contrib.auth.views.logout_then_login', name='logout'),
+    url(r'^login/$', login, {'template_name': 'login.html'}, name='login'),
+    # or use logout with template 'logout.html'
+    url(r'^logout/$', logout, name='logout'),
 
     # password reset urls
-    url(r'^password_reset/$', 'django.contrib.auth.views.password_reset',
-        {'template_name': 'password_reset.html'}, name='password_reset'),
-    url(r'^password_reset_done/$', 'django.contrib.auth.views.password_reset_done',
+    url(r'^password_reset/$', password_reset, {'template_name': 'password_reset.html'},
+        name='password_reset'),
+    url(r'^password_reset_done/$', password_reset_done,
         {'template_name': 'password_reset_done.html'}, name='password_reset_done'),
     url(r'^password_reset_confirm/(?P<uidb64>[0-9A-Za-z_\-]+)/(?P<token>.+)/$',
-        'django.contrib.auth.views.password_reset_confirm',
-        {'template_name': 'password_reset_confirm.html'}, name='password_reset_confirm'),
-    url(r'^password_reset_complete/$', 'django.contrib.auth.views.password_reset_complete',
+        password_reset_confirm, {'template_name': 'password_reset_confirm.html'},
+        name='password_reset_confirm'),
+    url(r'^password_reset_complete/$', password_reset_complete,
         {'template_name': 'password_reset_complete.html'}, name='password_reset_complete'),
 )
diff --git a/nsupdate/main/_tests/test_main.py b/nsupdate/main/_tests/test_main.py
index d887104..ccb88d0 100644
--- a/nsupdate/main/_tests/test_main.py
+++ b/nsupdate/main/_tests/test_main.py
@@ -6,7 +6,7 @@ from __future__ import print_function
 
 import pytest
 
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 
 
 USERNAME = 'test'
diff --git a/nsupdate/main/models.py b/nsupdate/main/models.py
index 57930c7..e04d5f3 100644
--- a/nsupdate/main/models.py
+++ b/nsupdate/main/models.py
@@ -20,7 +20,6 @@ from django.utils.translation import ugettext_lazy as _
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.six import text_type
 
-
 from . import dnstools
 
 RESULT_MSG_LEN = 255
@@ -47,7 +46,7 @@ class BlacklistedHost(models.Model):
     created_by = models.ForeignKey(
         settings.AUTH_USER_MODEL,
         related_name='blacklisted_domains',
-        verbose_name=_('created by'))
+        verbose_name=_('created by'), on_delete=models.CASCADE)
 
     def __str__(self):
         return self.name_re
@@ -64,6 +63,7 @@ def host_blacklist_validator(value):
 
 
 from collections import namedtuple
+
 UpdateAlgorithm = namedtuple("update_algorithm", "bitlength bind_name")
 
 UPDATE_ALGORITHM_DEFAULT = 'HMAC_SHA512'
@@ -128,7 +128,8 @@ class Domain(models.Model):
 
     last_update = models.DateTimeField(_("last update"), auto_now=True)
     created = models.DateTimeField(_("created at"), auto_now_add=True)
-    created_by = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='domains', verbose_name=_("created by"))
+    created_by = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='domains', verbose_name=_("created by"),
+                                   on_delete=models.CASCADE)
 
     def __str__(self):
         return self.name
@@ -149,7 +150,7 @@ class Domain(models.Model):
     class Meta:
         verbose_name = _('domain')
         verbose_name_plural = _('domains')
-        ordering = ('name', )
+        ordering = ('name',)
 
 
 @python_2_unicode_compatible
@@ -249,14 +250,15 @@ class Host(models.Model):
 
     last_update = models.DateTimeField(_("last update"), auto_now=True)
     created = models.DateTimeField(_("created at"), auto_now_add=True)
-    created_by = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='hosts', verbose_name=_("created by"),)
+    created_by = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='hosts', verbose_name=_("created by"),
+                                   on_delete=models.CASCADE)
 
     def __str__(self):
         return u"%s.%s" % (self.name, self.domain.name)
 
     class Meta(object):
-        unique_together = (('name', 'domain'), )
-        index_together = (('name', 'domain'), )
+        unique_together = (('name', 'domain'),)
+        index_together = (('name', 'domain'),)
         verbose_name = _('host')
         verbose_name_plural = _('hosts')
         ordering = ('domain', 'name')  # groupby domain and sort by name
@@ -345,10 +347,11 @@ def pre_delete_host(sender, **kwargs):
     except (dnstools.Timeout, dnstools.NameServerNotAvailable):
         # well, we tried to clean up, but we didn't reach the nameserver
         pass
-    except (dnstools.DnsUpdateError, ):
+    except (dnstools.DnsUpdateError,):
         # e.g. PeerBadSignature if host is protected by a key we do not have
         pass
 
+
 pre_delete.connect(pre_delete_host, sender=Host)
 
 
@@ -360,10 +363,11 @@ def post_save_host(sender, **kwargs):
         except (dnstools.Timeout, dnstools.NameServerNotAvailable):
             # well, we tried to clean up, but we didn't reach the nameserver
             pass
-        except (dnstools.DnsUpdateError, ):
+        except (dnstools.DnsUpdateError,):
             # e.g. PeerBadSignature if host is protected by a key we do not have
             pass
 
+
 post_save.connect(post_save_host, sender=Host)
 
 
@@ -411,7 +415,7 @@ class RelatedHost(models.Model):
         return u"%s.%s" % (self.name, text_type(self.main_host))
 
     class Meta(object):
-        unique_together = (('name', 'main_host'), )
+        unique_together = (('name', 'main_host'),)
         verbose_name = _('related host')
         verbose_name_plural = _('related hosts')
         ordering = ('main_host', 'name')
@@ -475,7 +479,7 @@ class ServiceUpdater(models.Model):
     created_by = models.ForeignKey(
         settings.AUTH_USER_MODEL,
         related_name='serviceupdater',
-        verbose_name=_("created by"))
+        verbose_name=_("created by"), on_delete=models.CASCADE)
 
     def __str__(self):
         return self.name
@@ -525,10 +529,10 @@ class ServiceUpdaterHostConfig(models.Model):
     created_by = models.ForeignKey(
         settings.AUTH_USER_MODEL,
         related_name='serviceupdaterhostconfigs',
-        verbose_name=_("created by"))
+        verbose_name=_("created by"), on_delete=models.CASCADE)
 
     def __str__(self):
-        return u"%s (%s)" % (self.hostname, self.service.name, )
+        return u"%s (%s)" % (self.hostname, self.service.name,)
 
     class Meta(object):
         verbose_name = _('service updater host config')
diff --git a/nsupdate/main/urls.py b/nsupdate/main/urls.py
index e9d7980..974f919 100644
--- a/nsupdate/main/urls.py
+++ b/nsupdate/main/urls.py
@@ -2,7 +2,7 @@
 main app url dispatching
 """
 
-from django.conf.urls import patterns, url
+from django.conf.urls import url
 
 from .views import (
     HomeView, OverviewView, HostView, AddHostView, DeleteHostView, AboutView, GenerateSecretView, GenerateNSSecretView,
@@ -14,8 +14,7 @@ from ..api.views import (
     NicDeleteView, AuthorizedNicDeleteView)
 
 
-urlpatterns = patterns(
-    '',
+urlpatterns = (
     # interactive web ui
     url(r'^$', HomeView.as_view(), name="home"),
     url(r'^about/$', AboutView.as_view(), name="about"),
diff --git a/nsupdate/main/views.py b/nsupdate/main/views.py
index b9d37f2..0714b75 100644
--- a/nsupdate/main/views.py
+++ b/nsupdate/main/views.py
@@ -16,7 +16,7 @@ from django.contrib.auth.decorators import login_required
 from django.contrib.auth import get_user_model
 from django.contrib import messages
 from django.utils.decorators import method_decorator
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 from django.http import Http404
 from django import template
 from django.utils.timezone import now
@@ -195,7 +195,7 @@ class OverviewView(TemplateView):
             .only("name", "comment", "available", "client_faults", "server_faults", "abuse_blocked", "abuse",
                   "last_update_ipv4", "tls_update_ipv4", "last_update_ipv6", "tls_update_ipv6", "domain__name")
         context['your_domains'] = Domain.objects.filter(
-            created_by=self.request.user).select_related("created_by__username")\
+            created_by=self.request.user).select_related("created_by__profile")\
             .only("name", "public", "available", "comment", "created_by__username")
         context['public_domains'] = Domain.objects.filter(
             public=True).exclude(created_by=self.request.user).select_related("created_by")\
@@ -215,7 +215,7 @@ class AddHostView(CreateView):
     def get_success_url(self):
         return reverse('generate_secret_view', args=(self.object.pk,))
 
-    def get_form(self, form_class):
+    def get_form(self, form_class=None):
         form = super(AddHostView, self).get_form(form_class)
         form.fields['domain'].queryset = Domain.objects.filter(
             Q(created_by=self.request.user) | Q(public=True))
@@ -347,7 +347,7 @@ class AddRelatedHostView(CreateView):
     def get_success_url(self):
         return reverse('related_host_overview', args=(self.object.main_host.pk, ))
 
-    def get_form(self, form_class):
+    def get_form(self, form_class=None):
         form = super(AddRelatedHostView, self).get_form(form_class)
         return form
 
diff --git a/nsupdate/management/commands/domains.py b/nsupdate/management/commands/domains.py
index c648be2..aee2f20 100644
--- a/nsupdate/management/commands/domains.py
+++ b/nsupdate/management/commands/domains.py
@@ -4,8 +4,6 @@ dealing with domains (Domain records in our database)
 
 import dns.resolver
 
-from optparse import make_option
-
 from django.core.management.base import BaseCommand
 from django.core.mail import send_mail
 from django.db import transaction
@@ -15,7 +13,6 @@ from nsupdate.main.models import Domain
 from nsupdate.main.dnstools import FQDN, query_ns, NameServerNotAvailable
 from nsupdate.utils.mail import translate_for_user, send_mail_to_user
 
-
 MSG = _("""\
 Your domain: %(domain)s (comment: %(comment)s)
 
@@ -68,20 +65,17 @@ def check_dns(domain):
 class Command(BaseCommand):
     help = 'deal with domains'
 
-    option_list = BaseCommand.option_list + (
-        make_option('--check',
-                    action='store_true',
-                    dest='check',
-                    default=False,
-                    help='check whether nameserver for domain is reachable and answers queries',
-        ),
-        make_option('--notify-user',
-                    action='store_true',
-                    dest='notify_user',
-                    default=False,
-                    help='notify the user by email when domain gets flagged as unavailable',
-        ),
-    )
+    def add_arguments(self, parser):
+        parser.add_argument('--check',
+                            action='store_true',
+                            dest='check',
+                            default=False,
+                            help='check whether nameserver for domain is reachable and answers queries')
+        parser.add_argument('--notify-user',
+                            action='store_true',
+                            dest='notify_user',
+                            default=False,
+                            help='notify the user by email when domain gets flagged as unavailable')
 
     def handle(self, *args, **options):
         check = options['check']
@@ -105,6 +99,6 @@ class Command(BaseCommand):
                             subject = subject % dict(domain=domain)
                             msg = msg % dict(domain=domain, comment=comment)
                             send_mail_to_user(creator, subject, msg)
-                        msg = "setting unavailable flag for domain %s (created by %s)\n" % (domain, creator, )
+                        msg = "setting unavailable flag for domain %s (created by %s)\n" % (domain, creator,)
                         self.stdout.write(msg)
                     d.save()
diff --git a/nsupdate/management/commands/faults.py b/nsupdate/management/commands/faults.py
index beaee5c..40b0900 100644
--- a/nsupdate/management/commands/faults.py
+++ b/nsupdate/management/commands/faults.py
@@ -4,8 +4,6 @@ dealing with the fault counters and available/abuse/abuse_blocked flags
 
 import traceback
 
-from optparse import make_option
-
 from django.core.management.base import BaseCommand
 from django.core.mail import send_mail
 from django.db import transaction
@@ -14,7 +12,6 @@ from django.utils.translation import ugettext_lazy as _
 from nsupdate.main.models import Host
 from nsupdate.utils.mail import translate_for_user, send_mail_to_user
 
-
 ABUSE_MSG = _("""\
 Your host: %(fqdn)s (comment: %(comment)s)
 
@@ -52,63 +49,53 @@ Notes:
 class Command(BaseCommand):
     help = 'deal with the faults counters'
 
-    option_list = BaseCommand.option_list + (
-        make_option('--show-server',
-                    action='store_true',
-                    dest='show_server',
-                    default=False,
-                    help='show server fault counters',
-        ),
-        make_option('--show-client',
-                    action='store_true',
-                    dest='show_client',
-                    default=False,
-                    help='show client fault counters',
-        ),
-        make_option('--reset-server',
-                    action='store_true',
-                    dest='reset_server',
-                    default=False,
-                    help='reset the server fault counters of all hosts',
-        ),
-        make_option('--reset-client',
-                    action='store_true',
-                    dest='reset_client',
-                    default=False,
-                    help='reset the client fault counters of all hosts',
-        ),
-        make_option('--reset-abuse',
-                    action='store_true',
-                    dest='reset_abuse',
-                    default=False,
-                    help='reset the abuse flag (to False) of all hosts',
-        ),
-        make_option('--reset-abuse-blocked',
-                    action='store_true',
-                    dest='reset_abuse_blocked',
-                    default=False,
-                    help='reset the abuse_blocked flag (to False) of all hosts',
-        ),
-        make_option('--reset-available',
-                    action='store_true',
-                    dest='reset_available',
-                    default=False,
-                    help='reset the available flag (to True) of all hosts',
-        ),
-        make_option('--flag-abuse',
-                    action='store',
-                    dest='flag_abuse',
-                    default=None,
-                    type='int',
-                    help='if client faults > N then set abuse flag and reset client faults',
-        ),
-        make_option('--notify-user',
-                    action='store_true',
-                    dest='notify_user',
-                    default=False,
-                    help='notify the user by email when host gets flagged for abuse',
-        ),
-    )
+    def add_arguments(self, parser):
+        parser.add_argument('--show-server',
+                            action='store_true',
+                            dest='show_server',
+                            default=False,
+                            help='show server fault counters')
+        parser.add_argument('--show-client',
+                            action='store_true',
+                            dest='show_client',
+                            default=False,
+                            help='show client fault counters')
+        parser.add_argument('--reset-server',
+                            action='store_true',
+                            dest='reset_server',
+                            default=False,
+                            help='reset the server fault counters of all hosts')
+        parser.add_argument('--reset-client',
+                            action='store_true',
+                            dest='reset_client',
+                            default=False,
+                            help='reset the client fault counters of all hosts')
+        parser.add_argument('--reset-abuse',
+                            action='store_true',
+                            dest='reset_abuse',
+                            default=False,
+                            help='reset the abuse flag (to False) of all hosts')
+        parser.add_argument('--reset-abuse-blocked',
+                            action='store_true',
+                            dest='reset_abuse_blocked',
+                            default=False,
+                            help='reset the abuse_blocked flag (to False) of all hosts')
+        parser.add_argument('--reset-available',
+                            action='store_true',
+                            dest='reset_available',
+                            default=False,
+                            help='reset the available flag (to True) of all hosts')
+        parser.add_argument('--flag-abuse',
+                            action='store',
+                            dest='flag_abuse',
+                            default=None,
+                            type=int,
+                            help='if client faults > N then set abuse flag and reset client faults')
+        parser.add_argument('--notify-user',
+                            action='store_true',
+                            dest='notify_user',
+                            default=False,
+                            help='notify the user by email when host gets flagged for abuse')
 
     def handle(self, *args, **options):
         show_client = options['show_client']
@@ -129,7 +116,7 @@ class Command(BaseCommand):
                             output += u"%-6d " % h.client_faults
                         if show_server:
                             output += u"%-6d " % h.server_faults
-                        output += u"%s %s\n" % (h.created_by.username, h.get_fqdn(), )
+                        output += u"%s %s\n" % (h.created_by.username, h.get_fqdn(),)
                         self.stdout.write(output)
                     if (flag_abuse is not None or reset_client or reset_server or
                         reset_available or reset_abuse or reset_abuse_blocked):
@@ -166,7 +153,7 @@ class Command(BaseCommand):
                         h.save()
             except Exception:
                 try:
-                    msg = u"The following Exception occurred when processing host %s!\n" % (h.get_fqdn(), )
+                    msg = u"The following Exception occurred when processing host %s!\n" % (h.get_fqdn(),)
                     self.stderr.write(msg)
                 except Exception:
                     pass
diff --git a/nsupdate/management/commands/hosts.py b/nsupdate/management/commands/hosts.py
index de1fd45..9dd852e 100644
--- a/nsupdate/management/commands/hosts.py
+++ b/nsupdate/management/commands/hosts.py
@@ -3,7 +3,6 @@ dealing with hosts (Host records in our database)
 """
 
 from datetime import datetime
-from optparse import make_option
 
 from django.core.management.base import BaseCommand
 from django.db import transaction
@@ -132,20 +131,17 @@ def check_staleness(h):
 class Command(BaseCommand):
     help = 'deal with hosts'
 
-    option_list = BaseCommand.option_list + (
-        make_option('--stale-check',
-                    action='store_true',
-                    dest='stale_check',
-                    default=False,
-                    help='check whether the host has been updated recently, increase staleness counter if not',
-        ),
-        make_option('--notify-user',
-                    action='store_true',
-                    dest='notify_user',
-                    default=False,
-                    help='notify the user by email when staleness counter increases',
-        ),
-    )
+    def add_arguments(self, parser):
+        parser.add_argument('--stale-check',
+                            action='store_true',
+                            dest='stale_check',
+                            default=False,
+                            help='check whether the host has been updated recently, increase staleness counter if not')
+        parser.add_argument('--notify-user',
+                            action='store_true',
+                            dest='notify_user',
+                            default=False,
+                            help='notify the user by email when staleness counter increases')
 
     def handle(self, *args, **options):
         stale_check = options['stale_check']
diff --git a/nsupdate/management/commands/testuser.py b/nsupdate/management/commands/testuser.py
index 158d594..c90c2d4 100644
--- a/nsupdate/management/commands/testuser.py
+++ b/nsupdate/management/commands/testuser.py
@@ -4,13 +4,13 @@ reinitialize the test user account (and clean up)
 
 from django.conf import settings
 from django.contrib.auth import get_user_model
-from django.core.management.base import NoArgsCommand
+from django.core.management.base import BaseCommand
 
 
-class Command(NoArgsCommand):
+class Command(BaseCommand):
     help = 'reinitialize the test user'
 
-    def handle_noargs(self, **options):
+    def handle(self, *args, **options):
         user_model = get_user_model()
         try:
             u = user_model.objects.get(username='test')
diff --git a/nsupdate/settings/base.py b/nsupdate/settings/base.py
index 982db64..dcc2313 100644
--- a/nsupdate/settings/base.py
+++ b/nsupdate/settings/base.py
@@ -247,6 +247,7 @@ ACCOUNT_ACTIVATION_DAYS = 7
 REGISTRATION_EMAIL_HTML = False  # we override the text, but not the html email template
 
 LOGIN_REDIRECT_URL = '/overview/'
+LOGOUT_REDIRECT_URL = '/'
 
 X_FRAME_OPTIONS = 'DENY'  # for clickjacking middleware
 
@@ -264,8 +265,17 @@ SESSION_COOKIE_HTTPONLY = True
 SESSION_COOKIE_AGE = 14 * 24 * 60 * 60  # 14 days, in seconds (remember_me is True)
 SESSION_EXPIRE_AT_BROWSER_CLOSE = True  # more safe (remember_me is False)
 
-# python-social-auth settings
+# Allow SHA1 for host update secrets
+PASSWORD_HASHERS = [
+    'django.contrib.auth.hashers.PBKDF2PasswordHasher',
+    'django.contrib.auth.hashers.PBKDF2SHA1PasswordHasher',
+    'django.contrib.auth.hashers.Argon2PasswordHasher',
+    'django.contrib.auth.hashers.BCryptSHA256PasswordHasher',
+    'django.contrib.auth.hashers.BCryptPasswordHasher',
+    'django.contrib.auth.hashers.SHA1PasswordHasher',
+]
 
+# python-social-auth settings
 AUTHENTICATION_BACKENDS = (
     'social_core.backends.amazon.AmazonOAuth2',
     'social_core.backends.bitbucket.BitbucketOAuth',
diff --git a/nsupdate/templates/base.html b/nsupdate/templates/base.html
index c20235f..034d146 100644
--- a/nsupdate/templates/base.html
+++ b/nsupdate/templates/base.html
@@ -17,7 +17,7 @@
         <!-- note: keep jQuery and bootstrap js here,
                    stuff in the include / block right below might depend on it!
         -->
-        <script src="https://code.jquery.com/jquery-3.1.1.min.js" integrity="sha256-hVVnYaiADRTO2PzUGmuLJr8BLUSjGIZsDYGmIJLv2b8=" crossorigin="anonymous"></script>
+        <script src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" crossorigin="anonymous"></script>
         <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
         {% include "includes/base_head.html" %}
         {% block html_head %}{% endblock %}
@@ -58,7 +58,7 @@
                     <ul class="nav navbar-nav pull-right">
                         {% if not request.user.is_authenticated %}
                             <li{% if nav_register %} class="active"{% endif %}><a href="{% url 'registration_register' %}"><i class="fa fa-asterisk fa-fw"></i> {% trans "Sign up" %}</a></li>
-                            <li{% if nav_login %} class="active"{% endif %}><a href="{% url 'django.contrib.auth.views.login' %}"><i class="fa fa-sign-in fa-fw"></i> {% trans 'Log in' %}</a></li>
+                            <li{% if nav_login %} class="active"{% endif %}><a href="{% url 'login' %}"><i class="fa fa-sign-in fa-fw"></i> {% trans 'Log in' %}</a></li>
                         {% else %}
                             <li class="dropdown">
                                 <a href="#" class="dropdown-toggle" data-toggle="dropdown"><i class="fa fa-user fa-fw"></i> {{ request.user.username }} <b class="caret"></b></a>
@@ -68,7 +68,7 @@
                                     {% if request.user.is_staff %}
                                         <li><a href="{% url 'admin:index' %}"><i class="fa fa-wrench fa-fw"></i> {% trans 'Admin interface' %}</a></li>
                                     {% endif %}
-                                    <li><a href="{% url 'django.contrib.auth.views.logout_then_login' %}"><i class="fa fa-sign-out fa-fw"></i> {% trans 'Log out' %}</a></li>
+                                    <li><a href="{% url 'logout' %}"><i class="fa fa-sign-out fa-fw"></i> {% trans 'Log out' %}</a></li>
                                 </ul>
                             </li>
                         {% endif %}
diff --git a/nsupdate/urls.py b/nsupdate/urls.py
index b28fcdb..deb88b1 100644
--- a/nsupdate/urls.py
+++ b/nsupdate/urls.py
@@ -3,9 +3,10 @@ top-level url dispatching
 """
 
 from django.conf import settings
-from django.conf.urls import patterns, include, url
+from django.conf.urls import include, url
 from django.contrib import admin
 from django.contrib.auth import views as auth_views
+from django.conf.urls.static import static
 
 
 def remember_me_login(request, *args, **kw):
@@ -20,8 +21,7 @@ def remember_me_login(request, *args, **kw):
     return auth_views.login(request, *args, **kw)
 
 
-urlpatterns = patterns(
-    '',
+urlpatterns = [
     url('', include('social_django.urls', namespace='social')),
     url(r'^accounts/', include('nsupdate.login.urls')),
     # registration and user settings
@@ -29,12 +29,9 @@ urlpatterns = patterns(
     url(r'^admin/', include(admin.site.urls)),
     url(r'^i18n/', include('django.conf.urls.i18n')),
     url(r'^', include('nsupdate.main.urls')),
-)
+]
 
 if settings.DEBUG:
-    urlpatterns += patterns('django.contrib.staticfiles.views',
-                            url(r'^static/(?P<path>.*)$', 'serve'), )
+    urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
     import debug_toolbar
-    urlpatterns += patterns('',
-                            url(r'^__debug__/', include(debug_toolbar.urls)),
-    )
+    urlpatterns += [url(r'^__debug__/', include(debug_toolbar.urls)), ]
diff --git a/requirements.d/all.txt b/requirements.d/all.txt
index f2e8da6..e194507 100644
--- a/requirements.d/all.txt
+++ b/requirements.d/all.txt
@@ -1,7 +1,7 @@
 # packages always needed
 dnspython
 netaddr
-django>=1.8.1, <1.9
+django~=1.11.0
 django-bootstrap-form
 django-registration-redux
 django-extensions
diff --git a/scripts/travis/install.sh b/scripts/travis/install.sh
index 1faa82a..c30a332 100755
--- a/scripts/travis/install.sh
+++ b/scripts/travis/install.sh
@@ -19,6 +19,6 @@ sudo chattr +i /etc/resolv.conf
 #dig @127.0.0.1 tests.nsupdate.info SOA
 #sudo netstat -tulpen | grep 53
 
-pip install Django==$DJANGO
+pip install Django~=$DJANGO
 pip install -r requirements.d/travis.txt
 pip install -e .
diff --git a/setup.py b/setup.py
index b98db06..414dbd0 100644
--- a/setup.py
+++ b/setup.py
@@ -2,9 +2,6 @@
 setup for nsupdate package
 """
 
-import sys
-PY2 = sys.version_info[0] == 2
-
 from setuptools import setup, find_packages
 
 from nsupdate import version
@@ -12,11 +9,6 @@ from nsupdate import version
 with open('README.rst') as f:
     readme_content = f.read()
 
-if PY2:
-    install_requires = ['dnspython', ]
-else:
-    install_requires = ['dnspython3', ]
-
 setup(
     name='nsupdate',
     version=str(version),
@@ -53,9 +45,10 @@ setup(
     include_package_data=True,
     zip_safe=False,
     platforms='any',
-    install_requires=install_requires + [
+    install_requires=[
+        'dnspython',
         'netaddr',
-        'django>=1.8.1, <1.9',
+        'django~=1.11.0',
         'django-bootstrap-form',
         'django-registration-redux',
         'django-extensions',