diff --git a/scripts/ssh_shell b/scripts/ssh_shell
index 49e3c38..6ca4212 100644
--- a/scripts/ssh_shell
+++ b/scripts/ssh_shell
@@ -1,5 +1,7 @@
 #!/bin/bash
 #
+# no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty,command="~/ssh_shell
+#
 TIME="$(TZ='Asia/Seoul' date +%Y-%m-%d_%H-%M)"
 CLIENT_IP=$(echo $SSH_CLIENT | awk '{print $1}')