diff --git a/chaos_monkey/network/info.py b/chaos_monkey/network/info.py
index 0c841dc9f..3bab8cb17 100644
--- a/chaos_monkey/network/info.py
+++ b/chaos_monkey/network/info.py
@@ -138,12 +138,14 @@ def get_ips_from_interfaces():
     res = []
     ifs = get_host_subnets()
     for net_interface in ifs:
-        host_addr = ipaddress.ip_address(net_interface['addr'])
-        ip_interface = ipaddress.ip_interface(u"%s/%s" % (net_interface['addr'], net_interface['netmask']))
+        address_str = unicode(net_interface['addr'])
+        netmask_str = unicode(net_interface['netmask'])
+        host_address = ipaddress.ip_address(address_str)
+        ip_interface = ipaddress.ip_interface(u"%s/%s" % (address_str, netmask_str))
         # limit subnet scans to class C only
         if ip_interface.network.num_addresses > 255:
-            ip_interface = ipaddress.ip_interface(u"%s/24" % net_interface['addr'])
-        addrs = [str(addr) for addr in ip_interface.network.hosts() if addr != host_addr]
+            ip_interface = ipaddress.ip_interface(u"%s/24" % address_str)
+        addrs = [str(addr) for addr in ip_interface.network.hosts() if addr != host_address]
         res.extend(addrs)
     return res
 
diff --git a/monkey_island/deb-package/DEBIAN/postinst b/monkey_island/deb-package/DEBIAN/postinst
index 3b9ba92ff..42b8f1eb0 100644
--- a/monkey_island/deb-package/DEBIAN/postinst
+++ b/monkey_island/deb-package/DEBIAN/postinst
@@ -22,6 +22,8 @@ if [ -d "/etc/systemd/network" ]; then
     cp ${MONKEY_FOLDER}/ubuntu/systemd/*.service /lib/systemd/system/
     chmod +x ${MONKEY_FOLDER}/ubuntu/systemd/start_server.sh
     systemctl daemon-reload
+    systemctl enable monkey-mongo
+    systemctl enable monkey-island
 fi
 
 ${MONKEY_FOLDER}/create_certificate.sh
diff --git a/monkey_island/linux/ubuntu/systemd/monkey-island.service b/monkey_island/linux/ubuntu/systemd/monkey-island.service
index fe43875ac..8868dc3aa 100644
--- a/monkey_island/linux/ubuntu/systemd/monkey-island.service
+++ b/monkey_island/linux/ubuntu/systemd/monkey-island.service
@@ -1,5 +1,6 @@
 [Unit]
 Description=Monkey Island Service
+Wants=monkey-mongo.service
 After=network.target
 
 [Service]