diff --git a/SAS/TMSS/docker-compose-scu199.yml b/SAS/TMSS/docker-compose-scu199.yml
index 8e175a4b869e00fa65ddd8619e16ce238cb8798b..f2aa2b2c357fe81ae4724db31d79b31ed8702762 100644
--- a/SAS/TMSS/docker-compose-scu199.yml
+++ b/SAS/TMSS/docker-compose-scu199.yml
@@ -6,7 +6,7 @@ services:
     restart: on-failure
     env_file:
       - ./.env
-    command: bash -c 'source /opt/lofar/lofarinit.sh && tmss_test_environment -p 8008'
+    command: bash -c 'source /opt/lofar/lofarinit.sh && ALLOWED_HOSTS=* tmss_test_environment -H 0.0.0.0 -p 8008'
     ports:
       - "8008:8008"
   testprovider:
diff --git a/SAS/TMSS/test/test_utils.py b/SAS/TMSS/test/test_utils.py
index 5633744e750120c86f404b7b41fb5a6416d70bd5..34e44c6f384073421611136ed7c6d8e7c24b39c2 100644
--- a/SAS/TMSS/test/test_utils.py
+++ b/SAS/TMSS/test/test_utils.py
@@ -113,16 +113,17 @@ class TMSSPostgresTestMixin(PostgresTestMixin):
 class TMSSDjangoServerInstance():
     ''' Creates a running django TMSS server at the requested port with the requested database credentials.
     '''
-    def __init__(self, db_dbcreds_id: str="TMSS", ldap_dbcreds_id: str="TMSS_LDAP", port: int=8000):
+    def __init__(self, db_dbcreds_id: str="TMSS", ldap_dbcreds_id: str="TMSS_LDAP", host: str='127.0.0.1', port: int=8000):
         self._db_dbcreds_id = db_dbcreds_id
         self._ldap_dbcreds_id = ldap_dbcreds_id
+        self.host = host
         self.port = port
         self._server_process = None
 
     @property
     def address(self):
         ''':returns the address and port of the django server'''
-        return "127.0.0.1:%d" % self.port
+        return "%s:%d" % (self.host, self.port)
 
     @property
     def url(self):
@@ -240,11 +241,12 @@ class TMSSDjangoServerInstance():
 
 class TMSSTestEnvironment:
     '''Create and run a test django TMSS server against a newly created test database and a test ldap server (and cleanup automagically)'''
-    def __init__(self, preferred_django_port: int=8000):
+    def __init__(self, host: str='127.0.0.1', preferred_django_port: int=8000):
         self.ldap_server = TestLDAPServer(user='test', password='test')
         self.database = TMSSTestDatabaseInstance()
         self.django_server = TMSSDjangoServerInstance(db_dbcreds_id=self.database.dbcreds_id,
                                                       ldap_dbcreds_id=self.ldap_server.dbcreds_id,
+                                                      host=host,
                                                       port=find_free_port(preferred_django_port))
 
     def start(self):
@@ -310,13 +312,15 @@ def main_test_environment():
 
     parser = OptionParser('%prog [options]',
                           description='setup/run/teardown a full TMSS test environment including a fresh and isolated database, LDAP server and DJANGO REST server.')
+    parser.add_option("-H", "--host", dest="host", type="string", default='127.0.0.1',
+                      help="expose the TMSS Django REST API via this host. [default=%default]")
     parser.add_option("-p", "--port", dest="port", type="int", default=find_free_port(8000),
                       help="try to use this port for the DJANGO REST API. If not available, then a random free port is used and logged. [default=%default]")
     (options, args) = parser.parse_args()
 
     logging.basicConfig(format = '%(asctime)s %(levelname)s %(message)s', level = logging.INFO)
 
-    with TMSSTestEnvironment(preferred_django_port=options.port) as instance:
+    with TMSSTestEnvironment(host=options.host, preferred_django_port=options.port) as instance:
         # print some nice info for the user to use the test servers...
         # use print instead of log for clean lines.
         for h in logging.root.handlers: