diff --git a/check_process b/check_process
index 65232b0..008d203 100644
--- a/check_process
+++ b/check_process
@@ -26,6 +26,7 @@
 		fail_download_source=1
 		port_already_use=0
 		final_path_already_use=1
+		change_url=1
 ;;; Levels
 	Level 1=auto
 	Level 2=auto
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 82cfe10..d7bb99c 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -14,14 +14,14 @@ myynh_check_path () {
 # Create directory only if not already exists (path in argument)
 myynh_create_dir () {
 	[ -z "$1" ] && ynh_die "No argument supplied"
-	[ -d "$1" ] || sudo mkdir -p "$1"
+	[ -d "$1" ] || mkdir -p "$1"
 }
 
 # Check if enough disk space available on backup storage
 myynh_check_disk_space () {
 	file_to_analyse=$1
-	backup_size=$(sudo du --summarize "$1" | cut -f1)
-	free_space=$(sudo df --output=avail "/home/yunohost.backup" | sed 1d)
+	backup_size=$(du --summarize "$1" | cut -f1)
+	free_space=$(df --output=avail "/home/yunohost.backup" | sed 1d)
 	if [ $free_space -le $backup_size ]
 	then
 		WARNING echo "Not enough backup disk space for: $1"
@@ -39,46 +39,53 @@ myynh_clean_source () {
 # Create a dedicated nginx config
 myynh_add_nginx_config () {
 	ynh_backup_if_checksum_is_different "$nginx_conf" 1
-	sudo cp ../conf/nginx.conf "$nginx_conf"
+	cp ../conf/nginx.conf "$nginx_conf"
 	# To avoid a break by set -u, use a void substitution ${var:-}. If the variable is not set, it's simply set with an empty variable.
 	# Substitute in a nginx config file only if the variable is not empty
-	if test -n "${path_url:-}"; then
-		ynh_replace_string "__PATH__" "$path_url" "$nginx_conf"
-	fi
-	if test -n "${final_path:-}"; then
-		ynh_replace_string "__FINALPATH__" "$final_path" "$nginx_conf"
-	fi
-	if test -n "${app:-}"; then
-		ynh_replace_string "__NAME__" "$app" "$nginx_conf"
-	fi
-	if test -n "${filesize:-}"; then
-		ynh_replace_string "__FILESIZE__" "$filesize" "$nginx_conf"
-	fi
+	[ -n "${path_url:-}" ] && ynh_replace_string "__PATH__" "$path_url" "$nginx_conf"
+	[ -n "${final_path:-}" ] && ynh_replace_string "__FINALPATH__" "$final_path" "$nginx_conf"
+	[ -n "${app:-}" ] && ynh_replace_string "__NAME__" "$app" "$nginx_conf"
+	[ -n "${filesize:-}" ] && ynh_replace_string "__FILESIZE__" "$filesize" "$nginx_conf"
 	ynh_store_file_checksum "$nginx_conf"
-	sudo systemctl reload nginx
+	systemctl reload nginx
 }
 
 # Create a dedicated php-fpm config
 myynh_add_fpm_config () {
 	ynh_backup_if_checksum_is_different "$phpfpm_conf" 1
-	sudo cp ../conf/php-fpm.conf "$phpfpm_conf"
+	cp ../conf/php-fpm.conf "$phpfpm_conf"
 	postsize=${filesize%?}.1${filesize: -1}
 	ynh_replace_string "__FINALPATH__" "$final_path" "$phpfpm_conf"
 	ynh_replace_string "__NAME__" "$app" "$phpfpm_conf"
 	ynh_replace_string "__FILESIZE__" "$filesize" "$phpfpm_conf"
 	ynh_replace_string "__POSTSIZE__" "$postsize" "$phpfpm_conf"
-	sudo chown root: "$phpfpm_conf"
+	chown root: "$phpfpm_conf"
 	ynh_store_file_checksum "$phpfpm_conf"
-	sudo systemctl reload php5-fpm
+	systemctl reload php5-fpm
 }
 
 myynh_set_permissions () {
-	[ $(sudo find "$final_path" -type f | wc -l) -gt 0 ] && sudo find "$final_path" -type f | xargs sudo chmod 0644
-	[ $(sudo find "$final_path" -type d | wc -l) -gt 0 ] && sudo find "$final_path" -type d | xargs sudo chmod 0755
-	[ $(sudo find "$data_path" -type f | wc -l) -gt 0 ] && sudo find "$data_path" -type f | xargs sudo chmod 0644
-	[ $(sudo find "$data_path" -type d | wc -l) -gt 0 ] && sudo find "$data_path" -type d | xargs sudo chmod 0755
-	sudo chown -R root:"$app" "$final_path"
-	sudo chown -R "$app": "$final_path/private"
-	sudo chown -R "$app": "$data_path"
-	sudo chown root: "$data_path"
+	[ $(find "$final_path" -type f | wc -l) -gt 0 ] && find "$final_path" -type f | xargs chmod 0644
+	[ $(find "$final_path" -type d | wc -l) -gt 0 ] && find "$final_path" -type d | xargs chmod 0755
+	[ $(find "$data_path" -type f | wc -l) -gt 0 ] && find "$data_path" -type f | xargs chmod 0644
+	[ $(find "$data_path" -type d | wc -l) -gt 0 ] && find "$data_path" -type d | xargs chmod 0755
+	chown -R root:"$app" "$final_path"
+	chown -R "$app": "$final_path/private"
+	chown -R "$app": "$data_path"
+	chown root: "$data_path"
+}
+
+#=================================================
+# FUTURE YUNOHOST HELPERS - TO BE REMOVED LATER
+#=================================================
+
+# Delete a file checksum from the app settings
+#
+# $app should be defined when calling this helper
+#
+# usage: ynh_remove_file_checksum file
+# | arg: file - The file for which the checksum will be deleted
+ynh_delete_file_checksum () {
+	local checksum_setting_name=checksum_${1//[\/ ]/_}	# Replace all '/' and ' ' by '_'
+	ynh_app_setting_delete $app $checksum_setting_name
 }
diff --git a/scripts/change_url b/scripts/change_url
new file mode 100644
index 0000000..f7d1b8e
--- /dev/null
+++ b/scripts/change_url
@@ -0,0 +1,50 @@
+#!/bin/bash
+
+set -eu
+source _common.sh
+source /usr/share/yunohost/helpers
+
+# manage script failure
+ynh_abort_if_errors
+
+# retrieve arguments
+app=$YNH_APP_INSTANCE_NAME
+domain_old=$YNH_APP_OLD_DOMAIN
+domain_new=$YNH_APP_NEW_DOMAIN
+path_url_old=$YNH_APP_OLD_PATH
+path_url_new=$YNH_APP_NEW_PATH
+
+# check the syntax
+[ -n "$path_url_old" ] || path_url_old="/"
+[ -n "$path_url_new" ] || path_url_new="/"
+path_url_new=$(ynh_normalize_url_path "$path_url_new")
+path_url_old=$(ynh_normalize_url_path "$path_url_old")
+
+# definie useful vars
+nginx_conf_old="/etc/nginx/conf.d/$domain_old.d/$app.conf"
+nginx_conf_new="/etc/nginx/conf.d/$domain_new.d/$app.conf"
+change_domain=0
+change_path_url=0
+
+# check what should be changed
+[ "$domain_old" != "$domain_new" ] && change_domain=1
+[ "$path_url_old" != "$path_url_new" ] && change_path_url=1
+
+# change the path in the nginx config file
+if [ $change_path_url -eq 1 ]
+then
+	ynh_backup_if_checksum_is_different "$nginx_conf_old"
+	ynh_replace_string "location\( \(=\|~\|~\*\|\^~\)\)\? $path_url_old" "location\1 $path_url_new" "$nginx_conf_old"
+	ynh_replace_string "return \([[:digit:]]\{3\}\) $path_url_old" "return \1 $path_url_new" "$nginx_conf_old"
+	ynh_store_file_checksum "$nginx_conf_old"
+fi
+
+# change the domain for nginx
+if [ $change_domain -eq 1 ]
+then
+	ynh_delete_file_checksum "$nginx_conf_old"
+	mv $nginx_conf_old "$nginx_conf_new"
+	ynh_store_file_checksum "$nginx_conf_new"
+fi
+
+systemctl reload nginx