diff --git a/test.md b/test.md
index 34a9f76..e74f5a0 100644
--- a/test.md
+++ b/test.md
@@ -121,3 +121,5 @@
 52.	How does traceroute work?
 
 53.	A careless sysadmin executes the following command: ```chmod 444 chmod``` - what do you do to fix this?
+
+54. How does SSH forwarding work?