+This file should not be readable by anyone but the user.
+It is possible to
+specify a passphrase when generating the key; that passphrase will be
+used to encrypt the private part of this file.
+This file is not used by
+.Nm
+but is normally added to the agent using
+.Xr ssh-add 1
+at login time.
+.It Pa $HOME/.ssh/id_dsa