y disable the subsystem, to start with the
feature turned off or to restrict the feature in its scope or
impact.<br />
If a client or server turns off a subsystem then the remote end cannot
enable the feature. Some switches only affect the on / off state of the
feature instead, which does allow for the feature to be enabled through
a user action once the connection is established.<br />
These toggles may also be accessible through the server's control
channel and dbus interface. \</p>
<details>
  <summary>S