diff --git a/scripts/_common.sh b/scripts/_common.sh
index 69bad41..7915d33 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,9 +4,6 @@
 # COMMON VARIABLES
 #=================================================
 
-# dependencies used by the app
-nodejs_version=14
-
 #=================================================
 # PERSONAL HELPERS
 #=================================================
diff --git a/scripts/backup b/scripts/backup
index 3174d0a..6201eec 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -44,21 +44,6 @@ ynh_backup --src_path="$final_path"
 
 ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
-#=================================================
-# BACKUP FAIL2BAN CONFIGURATION
-#=================================================
-
-# ynh_backup --src_path="/etc/fail2ban/jail.d/$app.conf"
-# ynh_backup --src_path="/etc/fail2ban/filter.d/$app.conf"
-
-#=================================================
-# SPECIFIC BACKUP
-#=================================================
-# BACKUP LOGROTATE
-#=================================================
-
-ynh_backup --src_path="/etc/logrotate.d/$app"
-
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/install b/scripts/install
index 76aeb4b..f6f9837 100755
--- a/scripts/install
+++ b/scripts/install
@@ -53,23 +53,6 @@ ynh_app_setting_set --app=$app --key=path --value=$path_url
 
 #=================================================
 # STANDARD MODIFICATIONS
-#=================================================
-# FIND AND OPEN A PORT
-#=================================================
-ynh_script_progression --message="Finding an available port..." --weight=1
-
-# Find an available port
-port=$(ynh_find_port --port=8095)
-ynh_app_setting_set --app=$app --key=port --value=$port
-
-#=================================================
-# INSTALL DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Installing dependencies..." --weight=3
-
-# Install Nodejs
-ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -101,22 +84,6 @@ ynh_add_nginx_config
 
 #=================================================
 # GENERIC FINALIZATION
-#=================================================
-# SETUP LOGROTATE
-#=================================================
-ynh_script_progression --message="Configuring log rotation..." --weight=1
-
-# Use logrotate to manage application logfile(s)
-ynh_use_logrotate
-
-#=================================================
-# SETUP FAIL2BAN
-#=================================================
-# ynh_script_progression --message="Configuring Fail2Ban..." --weight=1
-
-# Create a dedicated Fail2Ban config
-# ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
-
 #=================================================
 # SETUP SSOWAT
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index a9cb3b1..6d76175 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -22,23 +22,6 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
 #=================================================
 # STANDARD REMOVE
-#=================================================
-# REMOVE LOGROTATE CONFIGURATION
-#=================================================
-ynh_script_progression --message="Removing logrotate configuration..." --weight=1
-
-# Remove the app-specific logrotate config
-ynh_remove_logrotate
-
-#=================================================
-# REMOVE DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Removing dependencies..." --weight=1
-
-# Remove metapackage and its dependencies
-ynh_remove_app_dependencies
-ynh_remove_nodejs
-
 #=================================================
 # REMOVE APP MAIN DIR
 #=================================================
@@ -55,14 +38,6 @@ ynh_script_progression --message="Removing NGINX web server configuration..." --
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
 
-#=================================================
-# REMOVE FAIL2BAN CONFIGURATION
-#=================================================
-# ynh_script_progression --message="Removing Fail2ban configuration..." --weight=1
-
-# # Remove the dedicated Fail2Ban config
-# ynh_remove_fail2ban_config
-
 #=================================================
 # SPECIFIC REMOVE
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index c78e253..fc10998 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -64,22 +64,6 @@ chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 
-#=================================================
-# RESTORE FAIL2BAN CONFIGURATION
-#=================================================
-ynh_script_progression --message="Restoring the Fail2Ban configuration..." --weight=1
-
-# ynh_restore_file "/etc/fail2ban/jail.d/$app.conf"
-# ynh_restore_file "/etc/fail2ban/filter.d/$app.conf"
-# ynh_systemd_action --action=restart --service_name=fail2ban
-
-#=================================================
-# RESTORE THE LOGROTATE CONFIGURATION
-#=================================================
-ynh_script_progression --message="Restoring the logrotate configuration..." --weight=1
-
-ynh_restore_file --origin_path="/etc/logrotate.d/$app"
-
 #=================================================
 # GENERIC FINALIZATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 403fb28..2a7e7c0 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -66,6 +66,14 @@ chmod 750 "$final_path"
 chmod -R o-rwx "$final_path"
 chown -R $app:www-data "$final_path"
 
+#=================================================
+# SPECIFIC UPGRADE
+#=================================================
+
+ynh_remove_nodejs || true
+ynh_remove_fail2ban_config
+ynh_app_setting_delete --app=$app --key=port
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -76,22 +84,6 @@ ynh_add_nginx_config
 
 #=================================================
 # GENERIC FINALIZATION
-#=================================================
-# SETUP LOGROTATE
-#=================================================
-ynh_script_progression --message="Upgrading logrotate configuration..." --weight=1
-
-# Use logrotate to manage app-specific logfile(s)
-ynh_use_logrotate --non-append
-
-#=================================================
-# UPGRADE FAIL2BAN
-#=================================================
-# ynh_script_progression --message="Reconfiguring Fail2Ban..." --weight=1
-
-# # Create a dedicated Fail2Ban config
-# ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
-
 #=================================================
 # RELOAD NGINX
 #=================================================