diff --git a/src/risotto/machine.py b/src/risotto/machine.py
index 6b8d28f..f463cb1 100644
--- a/src/risotto/machine.py
+++ b/src/risotto/machine.py
@@ -1,6 +1,5 @@
 from .utils import MULTI_FUNCTIONS, load_zones, value_pprint, RISOTTO_CONFIG, EXTRA_ANNOTATORS, ROUGAIL_NAMESPACE, ROUGAIL_NAMESPACE_DESCRIPTION
 from .image import Applications, Modules, valid_mandatories, applicationservice_copy
-from .rougail.annotator import calc_providers, calc_providers_global, calc_providers_dynamic, calc_providers_dynamic_follower, calc_providers_follower
 
 from rougail import RougailConfig, RougailConvert
 from os import remove, makedirs, listdir, chmod
@@ -9,7 +8,7 @@ from pickle import dump as pickle_dump, load as pickle_load
 from yaml import load as yaml_load, SafeLoader
 from ipaddress import IPv4Interface, ip_network
 #
-from tiramisu import Config, valid_network_netmask, valid_ip_netmask, valid_broadcast, valid_in_network, valid_not_equal, calc_value, calc_value_property_help
+from tiramisu import Config
 from rougail.utils import normalize_family
 from rougail import RougailSystemdTemplate
 from shutil import copy2, copytree, rmtree
@@ -36,20 +35,6 @@ INSTALL_CONFIG_DIR = 'configurations'
 INSTALL_TMPL_DIR= 'templates'
 INSTALL_IMAGES_DIR = 'images_files'
 INSTALL_TESTS_DIR = 'tests'
-FUNCTIONS = {'calc_providers': calc_providers,
-             'calc_providers_global': calc_providers_global,
-             'calc_providers_dynamic': calc_providers_dynamic,
-             'calc_providers_dynamic_follower': calc_providers_dynamic_follower,
-             'calc_providers_follower': calc_providers_follower,
-             'valid_network_netmask': valid_network_netmask,
-             'valid_ip_netmask': valid_ip_netmask,
-             'valid_broadcast': valid_broadcast,
-             'valid_in_network': valid_in_network,
-             'valid_not_equal': valid_not_equal,
-             'calc_value': calc_value,
-             'calc_value_property_help': calc_value_property_help,
-             'normalize_family': normalize_family,
-             }
 
 
 def copy(src_file, dst_file):
@@ -201,7 +186,6 @@ class Loader:
         cfg['variable_namespace_description'] = ROUGAIL_NAMESPACE_DESCRIPTION
         cfg['multi_functions'] = MULTI_FUNCTIONS
         cfg['extra_annotators'] = EXTRA_ANNOTATORS
-        cfg['internal_functions'] = list(FUNCTIONS.keys())
         cfg['force_convert_dyn_option_description'] = True
         cfg['risotto_globals'] = {}
 
@@ -267,6 +251,7 @@ class Loader:
             self.zones[zone_name] = {'domain_name': zone_domaine_name,
                                      'network': str(sub_network),
                                      'host_ip': str(network + 1),
+                                     'host_name': host_name.split('.', 1)[0],
                                      'length': length,
                                      'start_ip': str(network + 2)
                                      }
@@ -289,8 +274,10 @@ class Loader:
             # load host
             module_info = modules.get('host')
             tls_host_name = f'{server_name}.{self.zones[list(self.zones)[0]]["domain_name"]}'
+            short_host_name = host_name.split('.', 1)[0]
+            values = [f'{short_host_name}.{self.zones[zone_name]["domain_name"]}' for zone_name in zones_name]
             cfg['risotto_globals'][host_name] = {'global:server_name': host_name,
-                                                 'global:server_names': [host_name for zone in self.zones],
+                                                 'global:server_names': values,
                                                  'global:zones_name': list(self.zones),
                                                  'global:module_name': 'host',
                                                  'global:host_install_dir': abspath(INSTALL_DIR),
@@ -333,6 +320,16 @@ class Loader:
             self.modules[host_name] = modules_info
         cfg['functions_file'] = list(functions_files)
         self.tiram_obj = rougail.save(TIRAMISU_CACHE)
+        with open(TIRAMISU_CACHE, 'a') as cache:
+            cache.write(f"""#from pickle import load
+#config = Config(option_0)
+#config.property.read_only()
+#with open('{VALUES_CACHE}', 'rb') as fh:
+#    config.value.importation(load(fh))
+#with open('{INFORMATIONS_CACHE}', 'rb') as fh:
+#    config.information.importation(load(fh))
+#print(config.value.mandatory())
+""")
 
     def add_tls(self):
         zones = set()
@@ -373,19 +370,18 @@ class Loader:
 
     def tiramisu_file_to_tiramisu(self):
         # l
-        tiramisu_space = FUNCTIONS.copy()
+        tiramisu_space = {}
         try:
             exec(self.tiram_obj, None, tiramisu_space)
         except Exception as err:
-            print(self.tiram_obj)
-            raise Exception(f'unknown error when load tiramisu object {err}') from err
+            raise Exception(f'unknown error when load tiramisu object: "{err}" see the file "{TIRAMISU_CACHE}" for more details') from err
         if self.original_display_name:
             display_name = None
         else:
             display_name = tiramisu_display_name
         self.config = Config(tiramisu_space['option_0'],
-                                   display_name=display_name,
-                                   )
+                             display_name=display_name,
+                             )
 
     def load_values_and_informations(self):
         config = self.config
@@ -416,6 +412,10 @@ class Loader:
         # FIXME only one host_name is supported
         config.information.set('modules', self.modules[host_name])
         # config.information.set('modules', {module_name: module_info.depends for module_name, module_info in self.module_infos.items() if module_name in modules})
+        with open(VALUES_CACHE, 'wb') as fh:
+            pickle_dump(config.value.exportation(), fh)
+        with open(INFORMATIONS_CACHE, 'wb') as fh:
+            pickle_dump(config.information.exportation(), fh)
         config.property.add('cache')
         if self.valid_mandatories:
             messages = valid_mandatories(config)
@@ -426,10 +426,6 @@ class Loader:
                     msg += '\n'.join(variables)
                 raise Exception(msg)
         config.property.read_only()
-        with open(VALUES_CACHE, 'wb') as fh:
-            pickle_dump(config.value.exportation(), fh)
-        with open(INFORMATIONS_CACHE, 'wb') as fh:
-            pickle_dump(config.information.exportation(), fh)
 
     def set_values(self,
                    server_name,