diff --git a/HowtoNetfilter.md b/HowtoNetfilter.md
index 4f58706d..86d78b91 100644
--- a/HowtoNetfilter.md
+++ b/HowtoNetfilter.md
@@ -173,4 +173,9 @@ Exemple si on a un serveur Munin centralisé, il a besoin de joindre les _munin-
 # iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT --to-port 3128
 ~~~
 
+### FTP Passif
+
+~~~
+# iptables -A INPUT -p tcp --dport 60000:61000 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
+~~~