From 33c6d61d2d58548e01a4df6114d41cac4c4759b4 Mon Sep 17 00:00:00 2001
From: Nikolai Kristiansen <nikolaik@gmail.com>
Date: Sat, 3 Oct 2015 14:28:37 +0200
Subject: [PATCH] Fixes some ipaddress api changes, adds puppet host validation
 endpoint with test

---
 mdb/api/serializers.py                    |   46 +
 mdb/api/views.py                          |   19 +-
 mdb/fixtures/test_data.json               | 2722 +++++++++++++++++++++
 mdb/migrations/0007_auto_20151003_1313.py |   24 +
 mdb/models.py                             |   26 +-
 mdb/tests.py                              |   26 +-
 mdb/validators.py                         |    5 +-
 mdbsite/settings.py                       |    1 +
 requirements.txt                          |    3 +-
 9 files changed, 2849 insertions(+), 23 deletions(-)
 create mode 100644 mdb/fixtures/test_data.json
 create mode 100644 mdb/migrations/0007_auto_20151003_1313.py

diff --git a/mdb/api/serializers.py b/mdb/api/serializers.py
index e69de29..17a1fec 100644
--- a/mdb/api/serializers.py
+++ b/mdb/api/serializers.py
@@ -0,0 +1,46 @@
+from mdb.models import Host, Interface, Domain
+from rest_framework import serializers
+from rest_framework.exceptions import ValidationError
+
+
+class HostValidateSecretSerializer(serializers.Serializer):
+    certname = serializers.CharField(required=True)
+    pxe_key = serializers.CharField(required=True)
+    host = None
+
+    def _host_in_domain_exists(self, attrs):
+        fqdn = attrs['certname']
+        host_name = fqdn.split('.')[0]
+        domain = '.'.join(fqdn.split('.')[1:])
+
+        try:
+            return Host.objects.get(hostname=host_name, interface__domain__domain_name=domain)
+        except (Host.DoesNotExist, Host.MultipleObjectsReturned):
+            return None
+
+    def validate(self, attrs):
+        # custom validation
+        host = self._host_in_domain_exists(attrs)
+
+        if host is None:
+            raise ValidationError('Host \'{}\' not found'.format(attrs['certname']))
+
+        if not host.pxe_installable:
+            raise ValidationError('Host is marked as not installable via PXE.')
+
+        if not host.pxe_key:
+            raise ValidationError('Host has no pxe_key.')
+
+        if host.pxe_key != attrs['pxe_key']:
+            raise ValidationError('Supplied pxe_key does not match host.')
+
+        self.host = host
+
+        return attrs
+
+    def create(self, validated_data):
+        # Make requests kind of idempotent by only allowing 1 request / installation
+        self.host.pxe_installable = False
+        self.host.save()
+
+        return self.host
diff --git a/mdb/api/views.py b/mdb/api/views.py
index c8c2bee..8b2b1f8 100644
--- a/mdb/api/views.py
+++ b/mdb/api/views.py
@@ -1,7 +1,20 @@
+from rest_framework.authentication import TokenAuthentication
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
 from rest_framework.views import APIView
 
+from mdb.api.serializers import HostValidateSecretSerializer
+
 
 class ValidatePuppetHostSecret(APIView):
-    def post(self):
-        # TODO
-        pass
+    authentication_classes = [TokenAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def post(self, request):
+        serializer = HostValidateSecretSerializer(data=request.data)
+
+        serializer.is_valid(raise_exception=True)
+
+        serializer.save()  # sets pxe_installable=False
+
+        return Response({'valid_secret': True})
diff --git a/mdb/fixtures/test_data.json b/mdb/fixtures/test_data.json
new file mode 100644
index 0000000..0ef9f9a
--- /dev/null
+++ b/mdb/fixtures/test_data.json
@@ -0,0 +1,2722 @@
+[
+{
+    "pk": 1,
+    "fields": {
+        "hostname": "sega.neuf.no"
+    },
+    "model": "mdb.nameserver"
+},
+{
+    "pk": 2,
+    "fields": {
+        "hostname": "atari.neuf.no"
+    },
+    "model": "mdb.nameserver"
+},
+{
+    "pk": 1,
+    "fields": {
+        "priority": 10,
+        "hostname": "mx.neuf.no"
+    },
+    "model": "mdb.mailexchange"
+},
+{
+    "pk": 1,
+    "fields": {
+        "domain_admin": "sysadmin@neuf.no",
+        "created_date": "2015-10-03T13:02:53.581",
+        "domain_ipaddr": "127.0.0.1",
+        "domain_retry": 7200,
+        "domain_active_serial": 0,
+        "domain_nameservers": [
+            1,
+            2
+        ],
+        "domain_mailexchanges": [
+            1
+        ],
+        "domain_serial": 2015100301,
+        "domain_refresh": 28800,
+        "domain_name": "edb.technology",
+        "domain_filename": "/tmp/mdb/bind/edb.technology",
+        "domain_minimum_ttl": 86400,
+        "domain_expire": 604800,
+        "domain_soa": "sega.neuf.no",
+        "domain_ttl": 3600
+    },
+    "model": "mdb.domain"
+},
+{
+    "pk": 1,
+    "fields": {
+        "log_facility": "local7",
+        "name": "default",
+        "max_lease_time": 7200,
+        "default_lease_time": 600,
+        "authoritative": false,
+        "ddns_update_style": "none",
+        "active_serial": 1,
+        "serial": 2015100302
+    },
+    "model": "mdb.dhcpconfig"
+},
+{
+    "pk": 1,
+    "fields": {
+        "created_date": "2015-10-03T13:08:17.765",
+        "network": "10.0.3.0",
+        "name": "clients",
+        "domain_retry": 7200,
+        "domain_active_serial": 0,
+        "domain_nameservers": [
+            1,
+            2
+        ],
+        "dhcp_dynamic_end": "10.0.3.254",
+        "domain_serial": 2015100301,
+        "dhcp_config": 1,
+        "domain_refresh": 28800,
+        "domain_name": "3.0.10.in-addr.arpa",
+        "netmask": "255.255.255.0",
+        "dhcp_dynamic_start": "10.0.3.2",
+        "domain_admin": "sysadmin@neuf.no",
+        "domain_filename": "/tmp/mdb/bind/3.0.10.in-addr.arpa",
+        "domain_minimum_ttl": 86400,
+        "domain_expire": 604800,
+        "dhcp_dynamic": true,
+        "domain_soa": "sega.neuf.no",
+        "domain_ttl": 3600
+    },
+    "model": "mdb.ip4subnet"
+},
+{
+    "pk": 1,
+    "fields": {
+        "ip4subnet": 1,
+        "key": "domain-name",
+        "value": "\"edb.technology\""
+    },
+    "model": "mdb.dhcpoption"
+},
+{
+    "pk": 2,
+    "fields": {
+        "ip4subnet": 1,
+        "key": "domain-name-servers",
+        "value": "158.36.190.194, 158.36.190.199, 8.8.8.8"
+    },
+    "model": "mdb.dhcpoption"
+},
+{
+    "pk": 3,
+    "fields": {
+        "ip4subnet": 1,
+        "key": "routers",
+        "value": "158.36.186.1"
+    },
+    "model": "mdb.dhcpoption"
+},
+{
+    "pk": 1,
+    "fields": {
+        "ip4subnet": 1,
+        "value": "deny unknown-clients"
+    },
+    "model": "mdb.dhcpcustomfield"
+},
+{
+    "pk": 1,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.1"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 2,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.2"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 3,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.3"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 4,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.4"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 5,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.5"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 6,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.6"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 7,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.7"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 8,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.8"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 9,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.9"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 10,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.10"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 11,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.11"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 12,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.12"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 13,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.13"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 14,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.14"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 15,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.15"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 16,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.16"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 17,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.17"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 18,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.18"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 19,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.19"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 20,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.20"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 21,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.21"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 22,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.22"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 23,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.23"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 24,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.24"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 25,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.25"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 26,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.26"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 27,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.27"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 28,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.28"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 29,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.29"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 30,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.30"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 31,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.31"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 32,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.32"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 33,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.33"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 34,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.34"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 35,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.35"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 36,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.36"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 37,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.37"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 38,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.38"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 39,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.39"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 40,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.40"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 41,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.41"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 42,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.42"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 43,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.43"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 44,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.44"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 45,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.45"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 46,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.46"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 47,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.47"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 48,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.48"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 49,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.49"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 50,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.50"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 51,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.51"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 52,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.52"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 53,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.53"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 54,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.54"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 55,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.55"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 56,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.56"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 57,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.57"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 58,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.58"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 59,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.59"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 60,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.60"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 61,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.61"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 62,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.62"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 63,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.63"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 64,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.64"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 65,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.65"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 66,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.66"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 67,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.67"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 68,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.68"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 69,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.69"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 70,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.70"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 71,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.71"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 72,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.72"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 73,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.73"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 74,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.74"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 75,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.75"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 76,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.76"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 77,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.77"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 78,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.78"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 79,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.79"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 80,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.80"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 81,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.81"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 82,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.82"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 83,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.83"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 84,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.84"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 85,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.85"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 86,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.86"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 87,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.87"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 88,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.88"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 89,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.89"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 90,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.90"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 91,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.91"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 92,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.92"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 93,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.93"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 94,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.94"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 95,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.95"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 96,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.96"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 97,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.97"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 98,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.98"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 99,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.99"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 100,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.100"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 101,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.101"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 102,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.102"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 103,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.103"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 104,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.104"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 105,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.105"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 106,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.106"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 107,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.107"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 108,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.108"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 109,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.109"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 110,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.110"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 111,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.111"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 112,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.112"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 113,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.113"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 114,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.114"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 115,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.115"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 116,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.116"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 117,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.117"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 118,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.118"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 119,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.119"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 120,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.120"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 121,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.121"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 122,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.122"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 123,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.123"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 124,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.124"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 125,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.125"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 126,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.126"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 127,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.127"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 128,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.128"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 129,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.129"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 130,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.130"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 131,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.131"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 132,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.132"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 133,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.133"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 134,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.134"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 135,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.135"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 136,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.136"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 137,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.137"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 138,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.138"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 139,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.139"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 140,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.140"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 141,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.141"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 142,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.142"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 143,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.143"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 144,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.144"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 145,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.145"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 146,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.146"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 147,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.147"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 148,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.148"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 149,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.149"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 150,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.150"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 151,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.151"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 152,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.152"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 153,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.153"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 154,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.154"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 155,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.155"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 156,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.156"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 157,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.157"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 158,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.158"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 159,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.159"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 160,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.160"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 161,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.161"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 162,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.162"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 163,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.163"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 164,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.164"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 165,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.165"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 166,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.166"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 167,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.167"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 168,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.168"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 169,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.169"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 170,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.170"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 171,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.171"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 172,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.172"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 173,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.173"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 174,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.174"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 175,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.175"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 176,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.176"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 177,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.177"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 178,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.178"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 179,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.179"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 180,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.180"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 181,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.181"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 182,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.182"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 183,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.183"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 184,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.184"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 185,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.185"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 186,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.186"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 187,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.187"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 188,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.188"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 189,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.189"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 190,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.190"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 191,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.191"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 192,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.192"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 193,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.193"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 194,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.194"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 195,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.195"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 196,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.196"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 197,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.197"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 198,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.198"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 199,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.199"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 200,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.200"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 201,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.201"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 202,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.202"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 203,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.203"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 204,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.204"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 205,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.205"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 206,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.206"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 207,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.207"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 208,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.208"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 209,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.209"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 210,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.210"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 211,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.211"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 212,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.212"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 213,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.213"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 214,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.214"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 215,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.215"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 216,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.216"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 217,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.217"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 218,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.218"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 219,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.219"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 220,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.220"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 221,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.221"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 222,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.222"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 223,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.223"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 224,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.224"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 225,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.225"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 226,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.226"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 227,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.227"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 228,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.228"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 229,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.229"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 230,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.230"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 231,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.231"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 232,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.232"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 233,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.233"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 234,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.234"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 235,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.235"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 236,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.236"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 237,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.237"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 238,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.238"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 239,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.239"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 240,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.240"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 241,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.241"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 242,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.242"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 243,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.243"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 244,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.244"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 245,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.245"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 246,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.246"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 247,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.247"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 248,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.248"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 249,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.249"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 250,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.250"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 251,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.251"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 252,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.252"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 253,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.253"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 254,
+    "fields": {
+        "ping_avg_rtt": null,
+        "subnet": 1,
+        "last_contact": null,
+        "address": "10.0.3.254"
+    },
+    "model": "mdb.ip4address"
+},
+{
+    "pk": 1,
+    "fields": {
+        "description": "Client machine (puppet controlled)",
+        "host_type": "client"
+    },
+    "model": "mdb.hosttype"
+},
+{
+    "pk": 1,
+    "fields": {
+        "name": "ubuntu",
+        "arch": "x86_64",
+        "version": "14.04"
+    },
+    "model": "mdb.operatingsystem"
+},
+{
+    "pk": 1,
+    "fields": {
+        "created_date": "2015-10-03T13:23:37.061",
+        "owner": "edb",
+        "serial_number": "12345678",
+        "kerberos_principal_created": false,
+        "model": "OptiPlex 760",
+        "pxe_key": "snop",
+        "kerberos_principal_name": "",
+        "kerberos_principal_created_date": null,
+        "pxe_installable": true,
+        "description": "testclient",
+        "host_type": 1,
+        "location": "kak",
+        "operating_system": 1,
+        "virtual": false,
+        "brand": "Dell",
+        "request_kerberos_principal": false,
+        "hostname": "tut"
+    },
+    "model": "mdb.host"
+},
+{
+    "pk": 1,
+    "fields": {
+        "created_date": "2015-10-03T13:23:37.063",
+        "name": "eth0",
+        "ip4address": 2,
+        "host": 1,
+        "domain": 1,
+        "pxe_filename": "pxelinux.0",
+        "macaddr": "f0:de:f1:58:be:1a",
+        "dhcp_client": true
+    },
+    "model": "mdb.interface"
+}
+]
diff --git a/mdb/migrations/0007_auto_20151003_1313.py b/mdb/migrations/0007_auto_20151003_1313.py
new file mode 100644
index 0000000..27db5c3
--- /dev/null
+++ b/mdb/migrations/0007_auto_20151003_1313.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mdb', '0006_auto_20151001_2235'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='host',
+            name='pxe_installable',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name='host',
+            name='pxe_key',
+            field=models.CharField(max_length=254, blank=True),
+        ),
+    ]
diff --git a/mdb/models.py b/mdb/models.py
index de4904f..d55a720 100644
--- a/mdb/models.py
+++ b/mdb/models.py
@@ -346,19 +346,19 @@ class Ip4Subnet(models.Model):
 
     def num_addresses(self):
         subnet = ipaddress.IPv4Network(self.network + "/" + self.netmask)
-        return subnet.numhosts
+        return subnet.num_addresses
 
     def broadcast_address(self):
         subnet = ipaddress.IPv4Network(self.network + "/" + self.netmask)
-        return subnet.broadcast
+        return subnet.broadcast_address
 
     def first_address(self):
         subnet = ipaddress.IPv4Network(self.network + "/" + self.netmask)
-        return subnet.iterhosts().next()
+        return next(subnet.hosts())
 
     def last_address(self):
         subnet = ipaddress.IPv4Network(self.network + "/" + self.netmask)
-        for curr in subnet.iterhosts():
+        for curr in subnet.hosts():
             pass  # horribly inefficient
 
         return curr
@@ -448,15 +448,14 @@ class Ip4Address(models.Model):
     ping_avg_rtt = models.FloatField(null=True, blank=True)
 
     def __str__(self):
-        # FIXME: generates 2 SQL queries
-        _if = self.interface_set.all()
-        if not _if:
+        # FIXME: generates 2 SQL queries?
+        if not hasattr(self, 'interface'):
             return self.address
 
-        return "{} ({})".format(self.address, _if.get().host.hostname)
+        return "{} ({})".format(self.address, self.interface.host.hostname)
 
     def assigned_to_host(self):
-        return self.interface_set.get().host
+        return self.interface.host
 
     assigned_to_host.short_description = "Assigned to Host"
 
@@ -523,12 +522,15 @@ class Host(models.Model):
     kerberos_principal_name = models.CharField(max_length=256, editable=False)
     kerberos_principal_created_date = models.DateTimeField(null=True, blank=True, editable=False)
 
+    pxe_key = models.CharField(max_length=254, blank=True)
+    pxe_installable = models.BooleanField(default=False)
+
     def __str__(self):
         return self.hostname
 
     def in_domain(self):
         domains = self.interface_set.values_list('domain__domain_name', flat=True)
-        return u",".join(domains)
+        return ",".join(domains)
 
     in_domain.short_description = "in domains"
 
@@ -562,7 +564,7 @@ class Interface(models.Model):
         return "%s (%s on %s)" % (self.macaddr, self.name, self.host.hostname)
 
     def ipv6_enabled(self):
-        return self.ip6address_set.count() > 0
+        return self.ip6address_set.exists()
 
 
 @python_2_unicode_compatible
@@ -624,7 +626,7 @@ def create_ips_for_subnet(sender, instance, created, **kwargs):
 
     subnet = ipaddress.IPv4Network(instance.network + "/" + instance.netmask)
 
-    for addr in subnet.iterhosts():
+    for addr in subnet.hosts():
         address = Ip4Address(address=str(addr), subnet=instance)
         address.save()
 
diff --git a/mdb/tests.py b/mdb/tests.py
index f699e78..bfd4846 100644
--- a/mdb/tests.py
+++ b/mdb/tests.py
@@ -1,12 +1,28 @@
+from django.contrib.auth.models import User
 from django.core.urlresolvers import reverse
+from mdb.models import Host
+from rest_framework.authtoken.models import Token
 from rest_framework.test import APITestCase
 
 
-class APITestCases(APITestCase):
+class MyAPITestCases(APITestCase):
+    fixtures = ['test_data']
+
+    def create_user_with_token(self):
+        self.user = User.objects.create(username='admin')
+        self.token = Token.objects.create(user=self.user)
+        self.host = Host.objects.first()
+
+    def setUp(self):
+        self.create_user_with_token()
+        return super(MyAPITestCases, self).setUp()
+
     def test_validate_puppet_host_by_secret(self):
         data = {
-            'secret': 'something',
-            'certname': 'arnold.neuf.no'
+            'pxe_key': self.host.pxe_key,
+            'certname': '{}.{}'.format(self.host.hostname, self.host.interface_set.first().domain.domain_name)
         }
-        res = self.client.post(reverse('api-validate-host-secret'), data)
-        self.fail()
+        self.client.credentials(HTTP_AUTHORIZATION='Token {}'.format(self.token.key))
+        res = self.client.post(reverse('api-validate-host-secret'), data, format='json')
+        self.assertEquals(res.status_code, 200, res.content)
+        self.assertFalse(Host.objects.get(pk=self.host.pk).pxe_installable)
diff --git a/mdb/validators.py b/mdb/validators.py
index 58bfb1b..5959f1b 100644
--- a/mdb/validators.py
+++ b/mdb/validators.py
@@ -1,3 +1,4 @@
+from __future__ import unicode_literals
 from django.core.validators import RegexValidator
 import re
 
@@ -5,11 +6,11 @@ import re
 hostname_re = re.compile(r'^(?!-)[-a-z0-9]+(?<!-)$', re.IGNORECASE)
 validate_hostname = RegexValidator(
     regex=hostname_re,
-    message=u'Enter a valid hostname',
+    message='Enter a valid hostname',
     code='invalid')
 
 macaddr_re = re.compile(r'^([0-9A-F]{2}[:]){5}([0-9A-F]{2})$', re.IGNORECASE)
 validate_macaddr = RegexValidator(
     regex=macaddr_re,
-    message=u'Enter a valid MAC address',
+    message='Enter a valid MAC address',
     code='invalid')
diff --git a/mdbsite/settings.py b/mdbsite/settings.py
index ec02482..3a0bf85 100644
--- a/mdbsite/settings.py
+++ b/mdbsite/settings.py
@@ -75,6 +75,7 @@ INSTALLED_APPS = (
     'suit',
     'django.contrib.admin',
     'rest_framework',
+    'rest_framework.authtoken',
 
     'mdb',
 )
diff --git a/requirements.txt b/requirements.txt
index af04a5d..ab44cbc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 Django>=1.8,<1.9
 django-auth-ldap
-django-suit==0.2.15
+django-extensions==1.5.7
 djangorestframework==3.2.4
+django-suit==0.2.15
 ipaddress==1.0.14
 mysqlclient==1.3.6