diff --git a/machines/migrations/0014_auto_20160706_1220.py b/machines/migrations/0014_auto_20160706_1220.py
index c7d7bf04..c03da02a 100644
--- a/machines/migrations/0014_auto_20160706_1220.py
+++ b/machines/migrations/0014_auto_20160706_1220.py
@@ -15,6 +15,6 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='interface',
             name='dns',
-            field=models.CharField(unique=True, validators=[machines.models.full_domain_validator], max_length=255, help_text="Obligatoire et unique, doit se terminer en .rez et ne pas comporter d'autres points"),
+            field=models.CharField(unique=True,  max_length=255, help_text="Obligatoire et unique, doit se terminer en .rez et ne pas comporter d'autres points"),
         ),
     ]
diff --git a/machines/migrations/0015_auto_20160707_0105.py b/machines/migrations/0015_auto_20160707_0105.py
index 90882c51..b06a96e4 100644
--- a/machines/migrations/0015_auto_20160707_0105.py
+++ b/machines/migrations/0015_auto_20160707_0105.py
@@ -15,6 +15,6 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='interface',
             name='dns',
-            field=models.CharField(unique=True, validators=[machines.models.full_domain_validator], help_text="Obligatoire et unique, doit se terminer en .example et ne pas comporter d'autres points", max_length=255),
+            field=models.CharField(unique=True, help_text="Obligatoire et unique, doit se terminer en .example et ne pas comporter d'autres points", max_length=255),
         ),
     ]
diff --git a/machines/migrations/0016_auto_20160708_1633.py b/machines/migrations/0016_auto_20160708_1633.py
index dddc1f09..7b00b79c 100644
--- a/machines/migrations/0016_auto_20160708_1633.py
+++ b/machines/migrations/0016_auto_20160708_1633.py
@@ -23,7 +23,7 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name='interface',
             name='dns',
-            field=models.CharField(unique=True, max_length=255, validators=[machines.models.full_domain_validator], help_text="Obligatoire et unique, doit se terminer en .rez et ne pas comporter d'autres points"),
+            field=models.CharField(unique=True, max_length=255, help_text="Obligatoire et unique, doit se terminer en .rez et ne pas comporter d'autres points"),
         ),
         migrations.AddField(
             model_name='machinetype',
diff --git a/machines/models.py b/machines/models.py
index c3a5e5bb..c4ad724a 100644
--- a/machines/models.py
+++ b/machines/models.py
@@ -2,31 +2,6 @@ from django.db import models
 from django.forms import ValidationError
 from macaddress.fields import MACAddressField
 
-import re
-
-def full_domain_validator(interface):
-    """ Validation du nom de domaine, extensions dans type de machine, prefixe pas plus long que 63 caractères """
-    HOSTNAME_LABEL_PATTERN = re.compile("(?!-)[A-Z\d-]+(?<!-)$", re.IGNORECASE)
-    dns = interface.dns.lower()
-    allowed_extension = interface.machine.type.extension.name
-    if not dns.endswith(allowed_extension):
-        raise ValidationError(
-                "Le nom de domaine '%(label)s' doit comporter une extension valide en '%(extension)s'",
-                params={'label': dns, 'extension': allowed_extension},
-        )
-    dns_short=re.sub('%s$' % allowed_extension, '', dns) 
-    if len(dns_short) > 63:
-        raise ValidationError(
-                "Le nom de domaine '%(label)s' est trop long (maximum de 63 caractères).",
-                params={'label': dns},
-        )
-    if not HOSTNAME_LABEL_PATTERN.match(dns_short):
-        raise ValidationError(
-                "Ce nom de domaine '%(label)s' contient des carractères interdits.",
-                params={'label': dns},
-        )
-    return dns 
-
 class Machine(models.Model):
     user = models.ForeignKey('users.User', on_delete=models.PROTECT)
     type = models.ForeignKey('MachineType', on_delete=models.PROTECT)
@@ -66,9 +41,6 @@ class Interface(models.Model):
     def __str__(self):
         return self.dns
 
-    def clean(self):
-        self.dns=full_domain_validator(self)
-
 class IpList(models.Model):
     ipv4 = models.GenericIPAddressField(protocol='IPv4', unique=True)
 
diff --git a/machines/views.py b/machines/views.py
index c7685c95..f20a6aa6 100644
--- a/machines/views.py
+++ b/machines/views.py
@@ -8,11 +8,33 @@ from django.template import Context, RequestContext, loader
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required, permission_required
 from django.db.models import ProtectedError
+from django.forms import ValidationError
 
+import re
 from .forms import NewMachineForm, EditMachineForm, EditInterfaceForm, AddInterfaceForm, NewInterfaceForm, MachineTypeForm, DelMachineTypeForm, ExtensionForm, DelExtensionForm, BaseEditInterfaceForm, BaseEditMachineForm
 from .models import Machine, Interface, IpList, MachineType, Extension
 from users.models import User
 
+def full_domain_validator(request, interface, machine):
+    """ Validation du nom de domaine, extensions dans type de machine, prefixe pas plus long que 63 caractères """
+    HOSTNAME_LABEL_PATTERN = re.compile("(?!-)[A-Z\d-]+(?<!-)$", re.IGNORECASE)
+    dns = interface.dns.lower()
+    allowed_extension = machine.type.extension.name
+    if not dns.endswith(allowed_extension):
+        messages.error(request,
+                "Le nom de domaine %s doit comporter une extension valide en %s" % (dns, allowed_extension) )
+        return False
+    dns_short=re.sub('%s$' % allowed_extension, '', dns)
+    if len(dns_short) > 63:
+        messages.error(request,
+                "Le nom de domaine %s est trop long (maximum de 63 caractères)." % dns)
+        return False
+    if not HOSTNAME_LABEL_PATTERN.match(dns_short):
+        messages.error(request,
+                "Ce nom de domaine %s contient des carractères interdits." % dns)
+        return False
+    return True
+
 def unassign_ips(user):
     machines = Interface.objects.filter(machine=Machine.objects.filter(user=user))
     for machine in machines:
@@ -63,16 +85,17 @@ def new_machine(request, userid):
     if machine.is_valid() and interface.is_valid():
         new_machine = machine.save(commit=False)
         new_machine.user = user
-        new_machine.save()
         new_interface = interface.save(commit=False)
-        new_interface.machine = new_machine
-        if free_ip() and not new_interface.ipv4:
-            new_interface = assign_ipv4(new_interface)
-        elif not new_interface.ipv4:
-            messages.error(request, u"Il n'y a plus d'ip disponibles")
-        new_interface.save()
-        messages.success(request, "La machine a été crée")
-        return redirect("/users/profil/" + userid)
+        if full_domain_validator(request, new_interface, new_machine):
+            new_machine.save()
+            new_interface.machine = new_machine
+            if free_ip() and not new_interface.ipv4:
+                new_interface = assign_ipv4(new_interface)
+            elif not new_interface.ipv4:
+                messages.error(request, u"Il n'y a plus d'ip disponibles")
+            new_interface.save()
+            messages.success(request, "La machine a été crée")
+            return redirect("/users/profil/" + userid)
     return form({'machineform': machine, 'interfaceform': interface}, 'machines/machine.html', request)
 
 @login_required
@@ -92,10 +115,13 @@ def edit_machine(request, interfaceid):
         machine_form = EditMachineForm(request.POST or None, instance=interface.machine)
         interface_form = EditInterfaceForm(request.POST or None, instance=interface)
     if machine_form.is_valid() and interface_form.is_valid():
-        machine_form.save()
-        interface_form.save()
-        messages.success(request, "La machine a été modifiée")
-        return redirect("/users/profil/" + str(interface.machine.user.id))
+        new_interface = interface_form.save(commit=False)
+        new_machine = machine_form.save(commit=False)
+        if full_domain_validator(request, new_interface, new_machine):
+            new_machine.save()
+            new_interface.save()
+            messages.success(request, "La machine a été modifiée")
+            return redirect("/users/profil/" + str(interface.machine.user.id))
     return form({'machineform': machine_form, 'interfaceform': interface_form}, 'machines/machine.html', request)
 
 @login_required
@@ -117,13 +143,14 @@ def new_interface(request, machineid):
         machine_form.save()
         new_interface = interface_form.save(commit=False)
         new_interface.machine = machine
-        if free_ip() and not new_interface.ipv4:
-            new_interface = assign_ipv4(new_interface)
-        elif not new_interface.ipv4:
-            messages.error(request, u"Il n'y a plus d'ip disponibles")
-        new_interface.save()
-        messages.success(request, "L'interface a été ajoutée")
-        return redirect("/machines/")
+        if full_domain_validator(request, new_interface, machine):
+            if free_ip() and not new_interface.ipv4:
+                new_interface = assign_ipv4(new_interface)
+            elif not new_interface.ipv4:
+                messages.error(request, u"Il n'y a plus d'ip disponibles")
+            new_interface.save()
+            messages.success(request, "L'interface a été ajoutée")
+            return redirect("/machines/")
     return form({'machineform': machine_form, 'interfaceform': interface_form}, 'machines/machine.html', request)
 
 @login_required
diff --git a/re2o/settings.py b/re2o/settings.py
index be2eea1a..e110269d 100644
--- a/re2o/settings.py
+++ b/re2o/settings.py
@@ -76,16 +76,13 @@ TEMPLATES = [
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
+                'django.core.context_processors.request',
                 're2o.context_processors.context_user',
             ],
         },
     },
 ]
 
-TEMPLATE_CONTEXT_PROCESSORS = (
-        'django.core.context_processors.request',
-    )
-
 WSGI_APPLICATION = 're2o.wsgi.application'