Disable node summary page on /node path
If you're ok with writing a small custom module you could do it very easily using hook_menu_alter():

function MYMODULE_menu_alter(&amp;$items) {
  $items['node']['access callback'] = FALSE;
}


The above will deny access to the page, if you want to remove it completely use this instead:

function MYMODULE_menu_alter(&amp;$items) {
  unset($items['node']);
}


There's a discussion on the subject here with a few other ideas but I think this would be the simplest.