diff --git a/README.md b/README.md
index db441db..c2aaa81 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
+# Introduction
+
 This repository contains an implementation of a monitoring dashboard of a Nextcloud system, including the application, the operating system, the database and the web server.
 
 The dashboard is to be hosted in a Zabbix system.
+
+## License
+
+GNU Affero General Public License (AGPL). See https://www.gnu.org/licenses/#AGPL.
+
diff --git a/params.json b/params.json
new file mode 100644
index 0000000..3f912aa
--- /dev/null
+++ b/params.json
@@ -0,0 +1,6 @@
+{
+	"nc-token":  "",
+	"nc_db":     "nextcloud_db",
+	"nc_host":   "localhost",
+	"nc_db_port": 3306
+}
diff --git a/zabbix-agent-scripts/discover_apache2_user_agent_metrics.py b/zabbix-agent-scripts/discover_apache2_user_agent_metrics.py
index d651923..ff0af1a 100644
--- a/zabbix-agent-scripts/discover_apache2_user_agent_metrics.py
+++ b/zabbix-agent-scripts/discover_apache2_user_agent_metrics.py
@@ -1,10 +1,29 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import pandas as pd
 
 import sys
 
 import json
 
-df = pd.read_json("/var/lib/zabbix/output/apache2_user_agent_metrics-2.json")
+df = pd.read_json("/var/lib/zabbix/output/apache2_user_agent_metrics.json")
 
 norm_user_agent_list = []
 
diff --git a/zabbix-agent-scripts/discover_db_metrics.py b/zabbix-agent-scripts/discover_db_metrics.py
index 726144e..57f91ee 100644
--- a/zabbix-agent-scripts/discover_db_metrics.py
+++ b/zabbix-agent-scripts/discover_db_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import pandas as pd
 
 import sys
diff --git a/zabbix-agent-scripts/functions.py b/zabbix-agent-scripts/functions.py
new file mode 100644
index 0000000..9e1c456
--- /dev/null
+++ b/zabbix-agent-scripts/functions.py
@@ -0,0 +1,88 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+
+import json
+
+def get_param(params_file,param_name):
+    
+    return json.load(open(params_file,"r"))[param_name]
+
+
+def get_norm_user_agent(s):
+    ## EDGE
+    # Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/110.0.1587.57
+    ## Chrome
+    # Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36
+    ## Firefox
+    # Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:110.0) Gecko/20100101 Firefox/110.0
+    ## Safari
+    # Mozilla/5.0 (Macintosh; Intel Mac OS X 13_2_1) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Safari/605.1.15
+
+    s = s.lower()
+
+    ## Nextcloud Talk App
+    if "nextcloud-talk" in s:
+        if "android" in s:
+            return "nextcloud_talk_android"
+        elif "ios" in s:
+            return "nextcloud_talk_ios"
+        else:
+            return "nextcloud_talk_unknown"
+
+    ## Nextcloud Files App
+    if "nextcloud-android" in s:
+        return "nextcloud_android"
+
+    ## Browser
+    if "chrome" in s:
+        if "edg" in s:
+            return "edge_browser"
+        else:
+            return "chrome_browser"
+    if "firefox" in s:
+        return "firefox_browser"
+    if "macintosh" in s and "applewebkit" in s:
+        return "safari_browser"
+
+    ## Desktop Client
+    if "mirall" in s:
+        if "linux" in s:
+            return "desktop_client_linux"
+        elif "macintosh" in s:
+            return "desktop_client_mac"
+        elif "windows" in s:
+            return "desktop_client_windows"
+        else:
+            return "desktop_client_unknown"
+
+    ## DavX5, CardDAV / CalDAV sync agent on Android
+    if "davx5" in s:
+        return "davx5"
+
+    ## Thunderbird, CardDAV / CalDAV sync agent on Desktop
+    if "thunderbird" in s:
+        return "thunderbird"
+
+    ## Python scripting
+    if "python" in s:
+        return "python"
+
+    return "other"
+
diff --git a/zabbix-agent-scripts/get_apache2_user_agent_metrics.py b/zabbix-agent-scripts/get_apache2_user_agent_metrics.py
index 3728645..20dc029 100644
--- a/zabbix-agent-scripts/get_apache2_user_agent_metrics.py
+++ b/zabbix-agent-scripts/get_apache2_user_agent_metrics.py
@@ -1,11 +1,30 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import pandas as pd
 
 from datetime import datetime
 
-import sys
-
 import json
 
+from functions import get_norm_user_agent
+
 dt = datetime.now().strftime("%Y%m%d")
 
 df = pd.read_csv(
@@ -17,77 +36,12 @@
 
 df.fillna("not-found",inplace=True)
 
-## EDGE
-# Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 Edg/110.0.1587.57
-## Chrome
-# Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36
-## Firefox
-# Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:110.0) Gecko/20100101 Firefox/110.0
-## Safari
-# Mozilla/5.0 (Macintosh; Intel Mac OS X 13_2_1) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Safari/605.1.15
-
-def get_norm_user_agent(s):
-        
-    s = s.lower()
-    
-    ## Nextcloud Talk App
-    if "nextcloud-talk" in s:
-        if "android" in s:
-            return "nextcloud_talk_android"
-        elif "ios" in s:
-            return "nextcloud_talk_ios"
-        else:
-            return "nextcloud_talk_unknown"
-    
-    ## Nextcloud Files App
-    if "nextcloud-android" in s:
-        return "nextcloud_android"
-    
-    ## Browser
-    if "chrome" in s:
-        if "edg" in s:
-            return "edge_browser"
-        else:
-            return "chrome_browser"
-    if "firefox" in s:
-        return "firefox_browser"
-    if "macintosh" in s and "applewebkit" in s:
-        return "safari_browser"
-    
-    ## Desktop Client
-    if "mirall" in s:
-        if "linux" in s:
-            return "desktop_client_linux"
-        elif "macintosh" in s:
-            return "desktop_client_mac"
-        elif "windows" in s:
-            return "desktop_client_windows"
-        else:
-            return "desktop_client_unknown"
-    
-    ## DavX5, CardDAV / CalDAV sync agent on Android
-    if "davx5" in s:
-        return "davx5"
-    
-    ## Thunderbird, CardDAV / CalDAV sync agent on Desktop
-    if "thunderbird" in s:
-        return "thunderbird"
-    
-    ## Python scripting
-    if "python" in s:
-        return "python"
-    
-    return "other"
-
-
-
 df["norm_user_agent"] = df.user_agent.apply(get_norm_user_agent)
 
 df_agg = df.value_counts("norm_user_agent")
 
 json.dump(
           df_agg.to_dict(),
-          open("/var/lib/zabbix/output/apache2_user_agent_metrics.json","w")
+          open("../output/apache2_user_agent_metrics.json","w")
          )
 
-df_agg.to_frame().reset_index().to_json("/var/lib/zabbix/output/apache2_user_agent_metrics-2.json")
diff --git a/zabbix-agent-scripts/get_db_metrics.py b/zabbix-agent-scripts/get_db_metrics.py
index f880658..e41d291 100644
--- a/zabbix-agent-scripts/get_db_metrics.py
+++ b/zabbix-agent-scripts/get_db_metrics.py
@@ -1,29 +1,48 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import pandas as pd
 
 import mariadb as mdb
 
 import configparser
 
+from functions import get_param
+
 config = configparser.ConfigParser()
 
-config.read("/var/lib/zabbix/.my.cnf")
+config.read("../.my.cnf")
 
 nc_usr	   = config["client"].get("user")
 
 nc_usr_pwd = config["client"].get("password")
 
-## The following variables must be filled in by the user
+nc_db      = get_param("../params.json","nc_db")
 
-nc_db      = "nextcloud_db"
+nc_host    = get_param("../params.json","nc_host")
 
-#tables_to_monitor = "'oc_filecache','oc_comments','oc_authtoken','oc_circles_event','oc_share'"
-
-##
+nc_db_port = get_param("../params.json","nc_db_port")
 
 conn = mdb.connect( user=nc_usr,
                     password=nc_usr_pwd,
-                    host="localhost",
-                    port=3306,
+                    host=nc_host,
+                    port=nc_db_port,
                     database=nc_db
                    )
 
@@ -45,5 +64,5 @@
 		   columns=["table_name","nr_rows","size_mb"]
 		 )
 
-df.to_json( "/var/lib/zabbix/output/db_metrics.json",
-							orient='columns')
+df.to_json( "../output/db_metrics.json",
+			orient='columns')
diff --git a/zabbix-agent-scripts/get_nc_metrics.py b/zabbix-agent-scripts/get_nc_metrics.py
index 28c3765..34c2052 100644
--- a/zabbix-agent-scripts/get_nc_metrics.py
+++ b/zabbix-agent-scripts/get_nc_metrics.py
@@ -1,13 +1,34 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import json
 
 import requests
 
-nextcloud_token = "7iz11gm77ivdf24hnfulycpa"
+from functions import get_param
+
+nc_token = get_param("../params.json", "nc-token")
 
 metric_values = json.loads(requests.get("http://localhost/ocs/v2.php/apps/serverinfo/api/v1/info?format=json",
                                          verify=False,
-                                         headers={"NC-Token": "%s" % nextcloud_token}).content
+                                         headers={"NC-Token": "%s" % nc_token}).content
                                          )
 
-with open("/var/lib/zabbix/output/nc_metrics.json","w") as fl:
+with open("../output/nc_metrics.json","w") as fl:
         json.dump(metric_values, fl)
diff --git a/zabbix-agent-scripts/get_nc_quota_metrics.py b/zabbix-agent-scripts/get_nc_quota_metrics.py
index 4c198d1..9c8dce9 100644
--- a/zabbix-agent-scripts/get_nc_quota_metrics.py
+++ b/zabbix-agent-scripts/get_nc_quota_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import subprocess
 
 import pandas as pd
diff --git a/zabbix-agent-scripts/get_storage_metrics.py b/zabbix-agent-scripts/get_storage_metrics.py
index fe01da0..f886530 100644
--- a/zabbix-agent-scripts/get_storage_metrics.py
+++ b/zabbix-agent-scripts/get_storage_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import subprocess
 
 import json
diff --git a/zabbix-agent-scripts/read_apache2_user_agent_metrics.py b/zabbix-agent-scripts/read_apache2_user_agent_metrics.py
index c276baf..63ca831 100644
--- a/zabbix-agent-scripts/read_apache2_user_agent_metrics.py
+++ b/zabbix-agent-scripts/read_apache2_user_agent_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import json
 
 import sys
diff --git a/zabbix-agent-scripts/read_db_metrics.py b/zabbix-agent-scripts/read_db_metrics.py
index d749c5f..951f379 100644
--- a/zabbix-agent-scripts/read_db_metrics.py
+++ b/zabbix-agent-scripts/read_db_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 import pandas as pd
 
 import sys
diff --git a/zabbix-agent-scripts/read_nc_metrics.py b/zabbix-agent-scripts/read_nc_metrics.py
index 1f0a266..eabbdc6 100644
--- a/zabbix-agent-scripts/read_nc_metrics.py
+++ b/zabbix-agent-scripts/read_nc_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 ## warnings are disabled as they confuse Zabbix
 import warnings 
 
diff --git a/zabbix-agent-scripts/read_storage_metrics.py b/zabbix-agent-scripts/read_storage_metrics.py
index 0fd0ed5..ec2ea39 100644
--- a/zabbix-agent-scripts/read_storage_metrics.py
+++ b/zabbix-agent-scripts/read_storage_metrics.py
@@ -1,3 +1,22 @@
+#
+# @copyright Copyright (c) 2024, Pietro Marini (pmarini@rcasys.com)
+#
+# @license GNU AGPL version 3 or any later version
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
 ## warnings are disabled as they confuse Zabbix
 import warnings