diff --git a/Dockerfile b/Dockerfile
index 5ed72c554..e32b3ea10 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -34,7 +34,7 @@ RUN pip install --upgrade pip==20.2.4 setuptools==49.6.0 wheel==0.34.2 -i ${PIP_
 
 COPY --from=stage-build /opt/jumpserver/release/jumpserver /opt/jumpserver
 RUN mkdir -p /root/.ssh/ \
-    && echo -e "Host *\n\tStrictHostKeyChecking no\n\tUserKnownHostsFile /dev/null" > /root/.ssh/config
+    && echo "Host *\n\tStrictHostKeyChecking no\n\tUserKnownHostsFile /dev/null" > /root/.ssh/config
 
 RUN echo > config.yml
 VOLUME /opt/jumpserver/data
diff --git a/apps/applications/api/mixin.py b/apps/applications/api/mixin.py
index 91c7d7b3f..6bab179a0 100644
--- a/apps/applications/api/mixin.py
+++ b/apps/applications/api/mixin.py
@@ -1,3 +1,5 @@
+import uuid
+
 from common.exceptions import JMSException
 from orgs.models import Organization
 from .. import models
@@ -7,6 +9,8 @@ class ApplicationAttrsSerializerViewMixin:
 
     def get_serializer_class(self):
         serializer_class = super().get_serializer_class()
+        if getattr(self, 'swagger_fake_view', False):
+            return serializer_class
         app_type = self.request.query_params.get('type')
         app_category = self.request.query_params.get('category')
         type_options = list(dict(models.Category.get_all_type_serializer_mapper()).keys())
@@ -38,12 +42,16 @@ class ApplicationAttrsSerializerViewMixin:
         if app_type:
             # action: create / update / list / retrieve / metadata
             attrs_cls = models.Category.get_type_serializer_cls(app_type)
+            class_name = 'ApplicationDynamicSerializer{}'.format(app_type.title())
         elif app_category:
             # action: list / retrieve / metadata
             attrs_cls = models.Category.get_category_serializer_cls(app_category)
+            class_name = 'ApplicationDynamicSerializer{}'.format(app_category.title())
         else:
             attrs_cls = models.Category.get_no_password_serializer_cls()
-        return type('ApplicationDynamicSerializer', (serializer_class,), {'attrs': attrs_cls()})
+            class_name = 'ApplicationDynamicSerializer'
+        cls = type(class_name, (serializer_class,), {'attrs': attrs_cls()})
+        return cls
 
 
 class SerializeApplicationToTreeNodeMixin:
diff --git a/apps/assets/api/asset.py b/apps/assets/api/asset.py
index b6331db11..7ce3b1f8e 100644
--- a/apps/assets/api/asset.py
+++ b/apps/assets/api/asset.py
@@ -115,7 +115,6 @@ class AssetTaskCreateApi(generics.CreateAPIView):
 class AssetGatewayListApi(generics.ListAPIView):
     permission_classes = (IsOrgAdminOrAppUser,)
     serializer_class = serializers.GatewayWithAuthSerializer
-    model = Asset
 
     def get_queryset(self):
         asset_id = self.kwargs.get('pk')
diff --git a/apps/authentication/backends/ldap.py b/apps/authentication/backends/ldap.py
index ac3cfc254..5a5e16081 100644
--- a/apps/authentication/backends/ldap.py
+++ b/apps/authentication/backends/ldap.py
@@ -82,6 +82,12 @@ class LDAPAuthorizationBackend(LDAPBackend):
 
 class LDAPUser(_LDAPUser):
 
+    def _search_for_user_dn_from_ldap_util(self):
+        from settings.utils import LDAPServerUtil
+        util = LDAPServerUtil()
+        user_dn = util.search_for_user_dn(self._username)
+        return user_dn
+
     def _search_for_user_dn(self):
         """
         This method was overridden because the AUTH_LDAP_USER_SEARCH
@@ -107,7 +113,10 @@ class LDAPUser(_LDAPUser):
         if results is not None and len(results) == 1:
             (user_dn, self._user_attrs) = next(iter(results))
         else:
-            user_dn = None
+            # 解决直接配置DC域，用户认证失败的问题(库不能从整棵树中搜索)
+            user_dn = self._search_for_user_dn_from_ldap_util()
+            self._user_dn = user_dn
+            self._user_attrs = self._load_user_attrs()
 
         return user_dn
 
diff --git a/apps/jumpserver/urls.py b/apps/jumpserver/urls.py
index d03c20ba3..e34c3e3a3 100644
--- a/apps/jumpserver/urls.py
+++ b/apps/jumpserver/urls.py
@@ -5,6 +5,7 @@ from django.urls import path, include, re_path
 from django.conf import settings
 from django.conf.urls.static import static
 from django.conf.urls.i18n import i18n_patterns
+from django.http import HttpResponse
 from django.views.i18n import JavaScriptCatalog
 
 from . import views, api
diff --git a/apps/ops/serializers/adhoc.py b/apps/ops/serializers/adhoc.py
index c3a660e37..9327ce0a8 100644
--- a/apps/ops/serializers/adhoc.py
+++ b/apps/ops/serializers/adhoc.py
@@ -128,6 +128,7 @@ class CommandExecutionSerializer(serializers.ModelSerializer):
             'result', 'is_finished', 'log_url', 'date_created',
             'date_finished'
         ]
+        ref_name = 'OpsCommandExecution'
 
     @staticmethod
     def get_log_url(obj):
diff --git a/apps/perms/api/asset/user_group_permission.py b/apps/perms/api/asset/user_group_permission.py
index fa71da9b5..8f48a0342 100644
--- a/apps/perms/api/asset/user_group_permission.py
+++ b/apps/perms/api/asset/user_group_permission.py
@@ -72,6 +72,8 @@ class UserGroupGrantedNodeAssetsApi(ListAPIView):
     search_fields = ['hostname', 'ip', 'comment']
 
     def get_queryset(self):
+        if getattr(self, 'swagger_fake_view', False):
+            return Asset.objects.none()
         user_group_id = self.kwargs.get('pk', '')
         node_id = self.kwargs.get("node_id")
         node = Node.objects.get(id=node_id)
diff --git a/apps/perms/api/asset/user_permission/user_permission_assets.py b/apps/perms/api/asset/user_permission/user_permission_assets.py
index 35b9da257..771f83bbf 100644
--- a/apps/perms/api/asset/user_permission/user_permission_assets.py
+++ b/apps/perms/api/asset/user_permission/user_permission_assets.py
@@ -31,6 +31,8 @@ class UserDirectGrantedAssetsApi(ListAPIView):
     search_fields = ['hostname', 'ip', 'comment']
 
     def get_queryset(self):
+        if getattr(self, 'swagger_fake_view', False):
+            return Asset.objects.none()
         user = self.user
         assets = get_user_direct_granted_assets(user)\
             .prefetch_related('platform')\
@@ -45,6 +47,8 @@ class UserFavoriteGrantedAssetsApi(ListAPIView):
     search_fields = ['hostname', 'ip', 'comment']
 
     def get_queryset(self):
+        if getattr(self, 'swagger_fake_view', False):
+            return Asset.objects.none()
         user = self.user
         assets = FavoriteAsset.get_user_favorite_assets(user)\
             .prefetch_related('platform')\
@@ -101,6 +105,8 @@ class UserAllGrantedAssetsApi(ForAdminMixin, ListAPIView):
     search_fields = ['hostname', 'ip', 'comment']
 
     def get_queryset(self):
+        if getattr(self, 'swagger_fake_view', False):
+            return Asset.objects.none()
         queryset = get_user_granted_all_assets(self.user)
         queryset = queryset.prefetch_related('platform')
         return queryset.only(*self.only_fields)
@@ -123,6 +129,8 @@ class UserGrantedNodeAssetsApi(UserNodeGrantStatusDispatchMixin, ListAPIView):
     pagination_node: Node
 
     def get_queryset(self):
+        if getattr(self, 'swagger_fake_view', False):
+            return Asset.objects.none()
         node_id = self.kwargs.get("node_id")
         node = Node.objects.get(id=node_id)
         self.pagination_node = node
diff --git a/apps/perms/api/base.py b/apps/perms/api/base.py
index 61caab19c..b56c161d7 100644
--- a/apps/perms/api/base.py
+++ b/apps/perms/api/base.py
@@ -15,7 +15,7 @@ __all__ = [
 
 class BasePermissionViewSet(OrgBulkModelViewSet):
     custom_filter_fields = [
-        'user_id', 'username', 'search', 'system_user_id', 'system_user',
+        'user_id', 'username', 'system_user_id', 'system_user',
         'user_group_id', 'user_group'
     ]
     permission_classes = (IsOrgAdmin,)
diff --git a/apps/perms/models/asset_permission.py b/apps/perms/models/asset_permission.py
index 9fc00f4a7..983805720 100644
--- a/apps/perms/models/asset_permission.py
+++ b/apps/perms/models/asset_permission.py
@@ -62,6 +62,8 @@ class Action:
 
     @classmethod
     def value_to_choices(cls, value):
+        if isinstance(value, list):
+            return value
         value = int(value)
         choices = [cls.NAME_MAP[i] for i, j in cls.DB_CHOICES if value & i == i]
         return choices
diff --git a/apps/perms/serializers/system_user_permission.py b/apps/perms/serializers/system_user_permission.py
index a383ffbd0..3452d7af3 100644
--- a/apps/perms/serializers/system_user_permission.py
+++ b/apps/perms/serializers/system_user_permission.py
@@ -16,3 +16,4 @@ class SystemUserSerializer(serializers.ModelSerializer):
             'auto_push', 'cmd_filters', 'sudo', 'shell', 'comment',
             'sftp_root', 'date_created', 'created_by'
         ]
+        ref_name = 'PermedSystemUserSerializer'
diff --git a/apps/settings/utils/ldap.py b/apps/settings/utils/ldap.py
index 5ca455380..9b7cd34a2 100644
--- a/apps/settings/utils/ldap.py
+++ b/apps/settings/utils/ldap.py
@@ -145,9 +145,22 @@ class LDAPServerUtil(object):
             paged_cookie=paged_cookie
         )
 
+    @staticmethod
+    def distinct_user_entries(user_entries):
+        distinct_user_entries = list()
+        distinct_user_entries_dn = set()
+        for user_entry in user_entries:
+            if user_entry.entry_dn in distinct_user_entries_dn:
+                continue
+            distinct_user_entries_dn.add(user_entry.entry_dn)
+            distinct_user_entries.append(user_entry)
+        return distinct_user_entries
+
     @timeit
-    def search_user_entries(self):
+    def search_user_entries(self, search_users=None, search_value=None):
         logger.info("Search user entries")
+        self.search_users = search_users
+        self.search_value = search_value
         user_entries = list()
         search_ous = str(self.config.search_ou).split('|')
         for search_ou in search_ous:
@@ -157,6 +170,7 @@ class LDAPServerUtil(object):
             while self.paged_cookie():
                 self.search_user_entries_ou(search_ou, self.paged_cookie())
                 user_entries.extend(self.connection.entries)
+        user_entries = self.distinct_user_entries(user_entries)
         return user_entries
 
     def user_entry_to_dict(self, entry):
@@ -180,12 +194,22 @@ class LDAPServerUtil(object):
             users.append(user)
         return users
 
+    @timeit
+    def search_for_user_dn(self, username):
+        user_entries = self.search_user_entries(search_users=[username])
+        if len(user_entries) == 1:
+            user_entry = user_entries[0]
+            user_dn = user_entry.entry_dn
+        else:
+            user_dn = None
+        return user_dn
+
     @timeit
     def search(self, search_users=None, search_value=None):
         logger.info("Search ldap users")
-        self.search_users = search_users
-        self.search_value = search_value
-        user_entries = self.search_user_entries()
+        user_entries = self.search_user_entries(
+            search_users=search_users, search_value=search_value
+        )
         users = self.user_entries_to_dict(user_entries)
         return users
 
diff --git a/apps/terminal/serializers/terminal.py b/apps/terminal/serializers/terminal.py
index ef285c869..33d46ada1 100644
--- a/apps/terminal/serializers/terminal.py
+++ b/apps/terminal/serializers/terminal.py
@@ -68,3 +68,4 @@ class TaskSerializer(BulkModelSerializer):
         fields = '__all__'
         model = Task
         list_serializer_class = AdaptedBulkListSerializer
+        ref_name = 'TerminalTaskSerializer'