+# Disable authentication methods I don't use.
+ ChallengeResponseAuthentication no
+ GSSAPIAuthentication no
+ HostbasedAuthentication no
+ KbdInteractiveAuthentication no
+# Only enable those I need.
+ PasswordAuthentication yes
+ PubkeyAuthentication yes
+
+# Abort if not all requested port forwardings can be set up.
+ ExitOnForwardFailure yes
+
+# Allow using -M (ControlMaster) to create a master SSH session which
+# "tunnels" other connections to the same host, thus reducing the number of
+# authentications (which are relatively slow) and TCP connections. The master
+# sockets are stored in ~/.ssh (by default ControlPath is not set).