diff --git a/HowtoDrupal.md b/HowtoDrupal.md
index c4c437f4..b617e968 100644
--- a/HowtoDrupal.md
+++ b/HowtoDrupal.md
@@ -115,6 +115,31 @@ $ drush sql-connect
 $ drush status
 ~~~
 
+### Configuration derrière un reverse-proxy
+
+Dans la configuration de drupal, des directives sont à activer pour la prise en compte des headers HTTP X-Forwarded-For).
+
+~~~php
+$settings['reverse_proxy'] = TRUE;
+
+$settings['reverse_proxy_addresses'] = ['192.0.2.1'];
+~~~
+
+Pour le HTTPS (signalé via X-Forwarded-Proto), il y a déjà des directives de configuration pour prendre ce réglage en compte.
+Elles ressemblent à :
+
+~~~php
+  /**
+   * If external request was HTTPS but internal request is HTTP, set $_SERVER['HTTPS'] so Drupal detects the right scheme.
+   */
+  if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && isset($_SERVER['REQUEST_SCHEME'])) {
+    if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' && $_SERVER["REQUEST_SCHEME"] == 'http') {
+      $_SERVER['HTTPS'] = 'on';
+    }
+  }
+~~~
+
+
 
 ## Optimisation