diff --git a/apps/assets/forms/asset.py b/apps/assets/forms/asset.py
index 69e64ceaf..c8afa6306 100644
--- a/apps/assets/forms/asset.py
+++ b/apps/assets/forms/asset.py
@@ -68,6 +68,8 @@ class AssetCreateForm(OrgModelForm):
             'nodes': _("Node"),
         }
         help_texts = {
+            'hostname': _('Only Numbers, letters, and characters ( {} ) '
+                          'are allowed').format(" ".join(['.', '_', '@'])),
             'admin_user': _(
                 'root or other NOPASSWD sudo privilege user existed in asset,'
                 'If asset is windows or other set any one, more see admin user left menu'
diff --git a/apps/assets/serializers/asset.py b/apps/assets/serializers/asset.py
index f67521c3d..f9f099ba8 100644
--- a/apps/assets/serializers/asset.py
+++ b/apps/assets/serializers/asset.py
@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 #
+import re
 from rest_framework import serializers
 from django.db.models import Prefetch
 from django.utils.translation import ugettext_lazy as _
@@ -91,6 +92,15 @@ class AssetSerializer(BulkOrgResourceModelSerializer):
             'org_name': {'label': _('Org name')}
         }
 
+    @staticmethod
+    def validate_hostname(hostname):
+        pattern = r"^[\._@a-zA-Z0-9-]+$"
+        res = re.match(pattern, hostname)
+        if res is None:
+            msg = _("* The hostname contains characters that are not allowed")
+            raise serializers.ValidationError(msg)
+        return hostname
+
     @classmethod
     def setup_eager_loading(cls, queryset):
         """ Perform necessary eager loading of data. """