diff --git a/scripts/backup b/scripts/backup
index 2ab0ac6..732ba88 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -27,7 +27,6 @@ app=$YNH_APP_INSTANCE_NAME
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
@@ -53,7 +52,7 @@ ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 #=================================================
 ynh_print_info --message="Backing up php-fpm configuration..." --weight=1
 
-ynh_backup --src_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
+ynh_backup --src_path="/etc/php/$YNH_PHP_VERSION/fpm/pool.d/$app.conf"
 
 #=================================================
 # SPECIFIC BACKUP
diff --git a/scripts/install b/scripts/install
index af13a50..b4637e3 100644
--- a/scripts/install
+++ b/scripts/install
@@ -84,8 +84,6 @@ ynh_setup_source --dest_dir="$final_path"
 # Create necessary files
 datadir=$final_path/documents
 touch $final_path/htdocs/conf/conf.php
-mkdir -p $datadir
-chmod go-w $datadir
 
 #=================================================
 # NGINX CONFIGURATION
@@ -240,10 +238,12 @@ ynh_store_file_checksum --file="$final_path/htdocs/conf/conf.php"
 # SECURE FILES AND DIRECTORIES
 #=================================================
 
-# Set permissions to app files
+# Set permissions on app files
 chown -R root: "$final_path"
-chown -R $app: "$datadir"
 chmod 644 "$final_path/htdocs/conf/conf.php"
+mkdir -p "$datadir"
+chown -R $app: "$datadir"
+chmod go-w $datadir
 
 #=================================================
 # SETUP LOGROTATE
@@ -261,8 +261,7 @@ ynh_script_progression --message="Configuring SSOwat..." --weight=1
 # Make app public if necessary
 if [ $is_public -eq 1 ]
 then
-	# unprotected_uris allows SSO credentials to be passed anyway.
-	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
+	ynh_permission_update --permission "main" --add "visitors"
 fi
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 074d885..17cbdd6 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -56,6 +56,12 @@ ynh_script_progression --message="Removing php-fpm configuration..." --weight=1
 # Remove the dedicated php-fpm config
 ynh_remove_fpm_config
 
+# Delete old static pool.d conf
+old_php_version=7.0
+if [ -f /etc/php/$old_php_version/fpm/pool.d/$app.conf ]; then
+	ynh_secure_remove --file=/etc/php/$old_php_version/fpm/pool.d/$app.conf
+fi
+
 #=================================================
 # REMOVE LOGROTATE CONFIGURATION
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 0d1d453..f2b5234 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -29,7 +29,7 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
-phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+datadir=$final_path/documents/
 
 fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
 fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)
@@ -79,7 +79,7 @@ chown -R root: $final_path
 #=================================================
 ynh_print_info --message="Reconfiguring PHP-FPM..." --weight=50
 
-ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
+ynh_restore_file --origin_path="/etc/php/$YNH_PHP_VERSION/fpm/pool.d/$app.conf"
 
 ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$YNH_PHP_VERSION --package="$extra_php_dependencies"
 
@@ -101,6 +101,17 @@ ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./
 
 ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 
+#=================================================
+# SECURE FILES AND DIRECTORIES
+#=================================================
+
+# Set permissions on app files
+chown -R root: "$final_path"
+chmod 644 "$final_path/htdocs/conf/conf.php"
+mkdir -p "$datadir"
+chown -R $app: "$datadir"
+chmod go-w $datadir
+
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
@@ -108,7 +119,7 @@ ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 #=================================================
 ynh_script_progression --message="Reloading nginx web server and php-fpm..." --weight=1
 
-ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
+ynh_systemd_action --service_name=php$YNH_PHP_VERSION-fpm --action=reload
 ynh_systemd_action --service_name=nginx --action=reload
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index a7a6823..e07fffe 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -25,7 +25,7 @@ language=$(ynh_app_setting_get --app=$app --key=language)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 current_version=$(ynh_app_setting_get --app=$app --key=version)
 update_version=$(ynh_app_upstream_version "../manifest.json")
-datadir=$final_path/documents
+datadir=$final_path/documents/
 
 fpm_footprint=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
 fpm_usage=$(ynh_app_setting_get --app=$app --key=fpm_usage)
@@ -123,7 +123,7 @@ fi
 ynh_script_progression --message="Upgrading nginx web server configuration..." --weight=1
 
 # Create a dedicated nginx config
-ynh_add_nginx_config
+ynh_add_nginx_config YNH_PHP_VERSION
 
 #=================================================
 # CREATE DEDICATED USER
@@ -138,13 +138,15 @@ ynh_system_user_create --username=$app
 #=================================================
 ynh_script_progression --message="Upgrading php-fpm configuration..." --weight=2
 
+# Delete old static pool.d conf
+old_php_version=7.0
+if [ -f "/etc/php/$old_php_version/fpm/pool.d/$app.conf" ]; then
+	ynh_secure_remove --file="/etc/php/$old_php_version/fpm/pool.d/$app.conf"
+fi
+
 # Create a dedicated php-fpm config
 ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$YNH_PHP_VERSION --package="$extra_php_dependencies"
 
-# Delete existing ini configuration file (backward compatibility)
-if [ -f /etc/php/$YNH_PHP_VERSION/fpm/conf.d/20-$app.ini ]; then
-	ynh_secure_remove --file=/etc/php/$YNH_PHP_VERSION/fpm/conf.d/20-$app.ini
-fi
 
 #=================================================
 # SPECIFIC UPGRADE
@@ -213,7 +215,6 @@ ynh_use_logrotate --non-append
 #=================================================
 
 # Set permissions on app files
-# Set permissions to app files
 chown -R root: "$final_path"
 chmod 644 "$final_path/htdocs/conf/conf.php"
 mkdir -p "$datadir"