Set default domain name

src/freedombone-utils-dns

@@ -448,6 +448,7 @@ function change_default_domain_name {
 
     sed -i "/${NEW_DEFAULT_DOMAIN_NAME}/d" "$CONFIGURATION_FILE"
     write_config_param DEFAULT_DOMAIN_NAME "${NEW_DEFAULT_DOMAIN_NAME}"
+    DEFAULT_DOMAIN_NAME=${NEW_DEFAULT_DOMAIN_NAME}
 }
 
 # NOTE: deliberately no exit 0