diff --git a/scripts/_common.sh b/scripts/_common.sh
index 6a512e1..57b7c70 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -46,6 +46,34 @@ process_ips(){
     echo "$ips"
 }
 
+update_config(){
+# used to update the IP adresses in the AGHconfig file
+
+# Reset the bind_hosts if the current ip is 0.0.0.0
+python3 -c "import yaml
+with open(\"$install_dir/AdGuardHome.yaml\", 'r') as file:
+	conf_file = yaml.safe_load(file)
+
+need_file_update = False
+
+if \"0.0.0.0\" in conf_file[\"dns\"][\"bind_hosts\"]:
+	conf_file[\"dns\"][\"bind_hosts\"] = []
+	if \"$ipv4_addr\":
+		conf_file[\"dns\"][\"bind_hosts\"].append(\"$ipv4_addr\")
+	if \"$ipv6_addr\":
+		conf_file[\"dns\"][\"bind_hosts\"].append(\"$ipv6_addr\")
+	need_file_update = True
+
+if conf_file[\"dns\"][\"port\"] != 53:
+	conf_file[\"dns\"][\"port\"] = 53
+	need_file_update = True
+	
+if need_file_update:
+	with open(\"$install_dir/AdGuardHome.yaml\", 'w') as file:
+		yaml.dump(conf_file, file)
+"
+}
+
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
diff --git a/scripts/config b/scripts/config
index b949802..a5c77f6 100644
--- a/scripts/config
+++ b/scripts/config
@@ -41,29 +41,8 @@ set__open_port_53() {
     ipv6_route_output=$(echo "$(ip -6 route get ::1.2.3.4 2> /dev/null)" | head -n1)
     ipv6_addr=$(process_ips "$ipv6_route_output")
 
-    # Reset the bind_hosts if the current ip is 0.0.0.0
-python3 -c "import yaml
-with open(\"$install_dir/AdGuardHome.yaml\", 'r') as file:
-	conf_file = yaml.safe_load(file)
-
-need_file_update = False
-
-if \"0.0.0.0\" in conf_file[\"dns\"][\"bind_hosts\"]:
-	conf_file[\"dns\"][\"bind_hosts\"] = []
-	if \"$ipv4_addr\":
-		conf_file[\"dns\"][\"bind_hosts\"].append(\"$ipv4_addr\")
-	if \"$ipv6_addr\":
-		conf_file[\"dns\"][\"bind_hosts\"].append(\"$ipv6_addr\")
-	need_file_update = True
-
-if conf_file[\"dns\"][\"port\"] != 53:
-	conf_file[\"dns\"][\"port\"] = 53
-	need_file_update = True
-	
-if need_file_update:
-	with open(\"$install_dir/AdGuardHome.yaml\", 'w') as file:
-		yaml.dump(conf_file, file)
-"
+    # update the IP adresses in the AGH config file
+    update_config
 
     # save the new setting
     ynh_app_setting_set "$app" --key=open_port_53 --value="$open_port_53"
diff --git a/scripts/upgrade b/scripts/upgrade
index 555b7ba..41c1a14 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -155,29 +155,8 @@ ipv4_addr=$(process_ips "$ipv4_route_output")
 ipv6_route_output=$(echo "$(ip -6 route get ::1.2.3.4 2> /dev/null)" | head -n1)
 ipv6_addr=$(process_ips "$ipv6_route_output")
 
-# Reset the bind_hosts if the current ip is 0.0.0.0
-python3 -c "import yaml
-with open(\"$install_dir/AdGuardHome.yaml\", 'r') as file:
-	conf_file = yaml.safe_load(file)
-
-need_file_update = False
-
-if \"0.0.0.0\" in conf_file[\"dns\"][\"bind_hosts\"]:
-	conf_file[\"dns\"][\"bind_hosts\"] = []
-	if \"$ipv4_addr\":
-		conf_file[\"dns\"][\"bind_hosts\"].append(\"$ipv4_addr\")
-	if \"$ipv6_addr\":
-		conf_file[\"dns\"][\"bind_hosts\"].append(\"$ipv6_addr\")
-	need_file_update = True
-
-if conf_file[\"dns\"][\"port\"] != 53:
-	conf_file[\"dns\"][\"port\"] = 53
-	need_file_update = True
-	
-if need_file_update:
-	with open(\"$install_dir/AdGuardHome.yaml\", 'w') as file:
-		yaml.dump(conf_file, file)
-"
+# update the IP adresses in the AGH config file
+update_config
 
 chmod 600 "$install_dir/AdGuardHome.yaml"
 chown -R "$app:$app" "$install_dir/AdGuardHome.yaml"