diff --git a/install/rhel/proftpd.conf b/install/rhel/proftpd.conf
index 240ee022..6b89d125 100644
--- a/install/rhel/proftpd.conf
+++ b/install/rhel/proftpd.conf
@@ -15,6 +15,7 @@ LogFormat                       default "%h %l %u %t \"%r\" %s %b"
 LogFormat                       auth    "%v [%P] %h %t \"%r\" %s"
 ListOptions                     -a
 RequireValidShell               off
+PassivePorts                    12000 12100
 
 <Global>
   Umask                         002