diff --git a/gns3server/handlers/api/file_handler.py b/gns3server/handlers/api/file_handler.py
index 4342f6c6..b6d88c40 100644
--- a/gns3server/handlers/api/file_handler.py
+++ b/gns3server/handlers/api/file_handler.py
@@ -37,6 +37,9 @@ class FileHandler:
     def read(request, response):
         response.enable_chunked_encoding()
 
+        if not request.json.get("location").endswith(".pcap"):
+            raise aiohttp.web.HTTPForbidden(text="Only .pcap file are allowed")
+
         try:
             with open(request.json.get("location"), "rb") as f:
                 loop = asyncio.get_event_loop()
diff --git a/gns3server/modules/qemu/qemu_vm.py b/gns3server/modules/qemu/qemu_vm.py
index 849c5e1b..280b7a0f 100644
--- a/gns3server/modules/qemu/qemu_vm.py
+++ b/gns3server/modules/qemu/qemu_vm.py
@@ -41,6 +41,8 @@ from ...schemas.qemu import QEMU_OBJECT_SCHEMA, QEMU_PLATFORMS
 from ...utils.asyncio import monitor_process
 from ...utils.images import md5sum
 from .qcow2 import Qcow2, Qcow2Error
+from ...utils import macaddress_to_int, int_to_macaddress
+
 
 import logging
 log = logging.getLogger(__name__)
@@ -1326,7 +1328,7 @@ class QemuVM(BaseVM):
                 patched_qemu = True
 
         for adapter_number, adapter in enumerate(self._ethernet_adapters):
-            mac = "%s%02x" % (self._mac_address[:-2], (int(self._mac_address[-2:]) + adapter_number) % 255)
+            mac = int_to_macaddress(macaddress_to_int(self._mac_address) + adapter_number)
             nio = adapter.get_nio(0)
             if self._legacy_networking:
                 # legacy QEMU networking syntax (-net)
diff --git a/gns3server/modules/vmware/__init__.py b/gns3server/modules/vmware/__init__.py
index 5a112019..29150421 100644
--- a/gns3server/modules/vmware/__init__.py
+++ b/gns3server/modules/vmware/__init__.py
@@ -618,7 +618,7 @@ class VMware(BaseManager):
         yield from self.check_vmware_version()
 
         inventory_path = self.get_vmware_inventory_path()
-        if os.path.exists(inventory_path) and self.host_type == "ws":
+        if os.path.exists(inventory_path) and self.host_type != "player":
             # inventory may exist for VMware player if VMware workstation has been previously installed
             return self._get_vms_from_inventory(inventory_path)
         else:
diff --git a/gns3server/utils/__init__.py b/gns3server/utils/__init__.py
index 753df140..fb58158b 100644
--- a/gns3server/utils/__init__.py
+++ b/gns3server/utils/__init__.py
@@ -16,6 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
+import textwrap
 import posixpath
 
 
@@ -26,3 +27,20 @@ def force_unix_path(path):
 
     path = path.replace("\\", "/")
     return posixpath.normpath(path)
+
+
+def macaddress_to_int(macaddress):
+    """
+    Convert a macaddress with the format 00:0c:29:11:b0:0a to a int
+
+    :param macaddress: The mac address
+    :returns: Integer
+    """
+    return int(macaddress.replace(":", ""), 16)
+
+
+def int_to_macaddress(integer):
+    """
+    Convert an integer to a macaddress
+    """
+    return ":".join(textwrap.wrap("%012x" % (integer), width=2))
diff --git a/scripts/remote-install.sh b/scripts/remote-install.sh
index f89b45a2..2ccba8a1 100644
--- a/scripts/remote-install.sh
+++ b/scripts/remote-install.sh
@@ -289,9 +289,9 @@ dev tun
 <connection>
 remote $MY_IP_ADDR 1194 udp
 </connection>
-EOF
+EOFCLIENT
 
-cat <<EOF > /etc/openvpn/udp1194.conf
+cat <<EOFUDP > /etc/openvpn/udp1194.conf
 server 172.16.253.0 255.255.255.0
 verb 3
 duplicate-cn
@@ -308,7 +308,7 @@ port 1194
 dev tun1194
 status openvpn-status-1194.log
 log-append /var/log/openvpn-udp1194.log
-EOF
+EOFUDP
 
 echo "Setup HTTP server for serving client certificate"
 mkdir -p /usr/share/nginx/openvpn/$UUID
@@ -316,12 +316,13 @@ cp /root/client.ovpn /usr/share/nginx/openvpn/$UUID/$HOSTNAME.ovpn
 touch /usr/share/nginx/openvpn/$UUID/index.html
 touch /usr/share/nginx/openvpn/index.html
 
-cat <<EOF > /etc/nginx/sites-available/openvpn
+cat <<EOFNGINX > /etc/nginx/sites-available/openvpn
 server {
 	listen 8003;
     root /usr/share/nginx/openvpn;
 }
-EOFCLIENT
+EOFNGINX
+
 [ -f /etc/nginx/sites-enabled/openvpn ] || ln -s /etc/nginx/sites-available/openvpn /etc/nginx/sites-enabled/
 service nginx stop
 service nginx start
@@ -332,6 +333,6 @@ set +e
 service openvpn stop
 service openvpn start
 
-log "Download http://$MY_IP_ADDR:8003/$UUID/$HOSTNAME.ovpn to setup your OpenVPN client"
+log "Download http://$MY_IP_ADDR:8003/$UUID/$HOSTNAME.ovpn to setup your OpenVPN client after rebooting the server"
 
 fi
diff --git a/tests/handlers/api/test_file.py b/tests/handlers/api/test_file.py
index 0b110b2e..b881e8f0 100644
--- a/tests/handlers/api/test_file.py
+++ b/tests/handlers/api/test_file.py
@@ -27,15 +27,15 @@ from gns3server.version import __version__
 
 
 def test_stream(server, tmpdir, loop):
-    with open(str(tmpdir / "test"), 'w+') as f:
+    with open(str(tmpdir / "test.pcap"), 'w+') as f:
         f.write("hello")
 
     def go(future):
-        query = json.dumps({"location": str(tmpdir / "test")})
+        query = json.dumps({"location": str(tmpdir / "test.pcap")})
         headers = {'content-type': 'application/json'}
         response = yield from aiohttp.request("GET", server.get_url("/files/stream", 1), data=query, headers=headers)
         response.body = yield from response.content.read(5)
-        with open(str(tmpdir / "test"), 'a') as f:
+        with open(str(tmpdir / "test.pcap"), 'a') as f:
             f.write("world")
         response.body += yield from response.content.read(5)
         response.close()
@@ -48,7 +48,7 @@ def test_stream(server, tmpdir, loop):
     assert response.body == b'helloworld'
 
 
-def test_stream_file_not_found(server, tmpdir, loop):
+def test_stream_file_not_pcap(server, tmpdir, loop):
     def go(future):
         query = json.dumps({"location": str(tmpdir / "test")})
         headers = {'content-type': 'application/json'}
@@ -56,6 +56,20 @@ def test_stream_file_not_found(server, tmpdir, loop):
         response.close()
         future.set_result(response)
 
+    future = asyncio.Future()
+    asyncio.async(go(future))
+    response = loop.run_until_complete(future)
+    assert response.status == 403
+
+
+def test_stream_file_not_found(server, tmpdir, loop):
+    def go(future):
+        query = json.dumps({"location": str(tmpdir / "test.pcap")})
+        headers = {'content-type': 'application/json'}
+        response = yield from aiohttp.request("GET", server.get_url("/files/stream", 1), data=query, headers=headers)
+        response.close()
+        future.set_result(response)
+
     future = asyncio.Future()
     asyncio.async(go(future))
     response = loop.run_until_complete(future)
diff --git a/tests/modules/qemu/test_qemu_vm.py b/tests/modules/qemu/test_qemu_vm.py
index dd3ee342..a56aa9bd 100644
--- a/tests/modules/qemu/test_qemu_vm.py
+++ b/tests/modules/qemu/test_qemu_vm.py
@@ -443,6 +443,49 @@ def test_build_command_without_display(vm, loop, fake_qemu_binary):
         assert "-nographic" in cmd
 
 
+def test_build_command_two_adapters(vm, loop, fake_qemu_binary, port_manager):
+
+    vm.adapters = 2
+    with asyncio_patch("asyncio.create_subprocess_exec", return_value=MagicMock()) as process:
+        cmd = loop.run_until_complete(asyncio.async(vm._build_command()))
+        assert cmd == [
+            fake_qemu_binary,
+            "-name",
+            "test",
+            "-m",
+            "256M",
+            "-smp",
+            "cpus=1",
+            "-boot",
+            "order=c",
+            "-serial",
+            "telnet:127.0.0.1:{},server,nowait".format(vm.console),
+            "-net",
+            "none",
+            "-device",
+            "e1000,mac=00:00:ab:0e:0f:00",
+            "-device",
+            "e1000,mac=00:00:ab:0e:0f:01",
+            "-nographic"
+        ]
+
+
+def test_build_command_two_adapters_mac_address(vm, loop, fake_qemu_binary, port_manager):
+
+    vm.adapters = 2
+    vm.mac_address = "00:00:ab:0e:0f:09"
+    with asyncio_patch("asyncio.create_subprocess_exec", return_value=MagicMock()) as process:
+        cmd = loop.run_until_complete(asyncio.async(vm._build_command()))
+        assert "e1000,mac=00:00:ab:0e:0f:09" in cmd
+        assert "e1000,mac=00:00:ab:0e:0f:0a" in cmd
+
+    vm.mac_address = "00:00:ab:0e:0f:0a"
+    with asyncio_patch("asyncio.create_subprocess_exec", return_value=MagicMock()) as process:
+        cmd = loop.run_until_complete(asyncio.async(vm._build_command()))
+        assert "e1000,mac=00:00:ab:0e:0f:0a" in cmd
+        assert "e1000,mac=00:00:ab:0e:0f:0b" in cmd
+
+
 # Windows accept this kind of mistake
 @pytest.mark.skipif(sys.platform.startswith("win"), reason="Not supported on Windows")
 def test_build_command_with_invalid_options(vm, loop, fake_qemu_binary):
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 33af1a0b..567bcccc 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -16,10 +16,18 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
-from gns3server.utils import force_unix_path
+from gns3server.utils import force_unix_path, macaddress_to_int, int_to_macaddress
 
 
 def test_force_unix_path():
     assert force_unix_path("a/b") == "a/b"
     assert force_unix_path("a\\b") == "a/b"
     assert force_unix_path("a\\b\\..\\c") == "a/c"
+
+
+def test_macaddress_to_int():
+    assert macaddress_to_int("00:0c:29:11:b0:0a") == 52228632586
+
+
+def test_int_to_macaddress():
+    assert int_to_macaddress(52228632586) == "00:0c:29:11:b0:0a"