node/add url redirect
You can use hook_menu_link_alter() to hide those links. For example:

/**
 * Implements hook_menu_link_alter().
 */
function MYMODULE_menu_link_alter(&amp;$link) {
  if ($link['link_path'] == 'node/add/dummy-type')) {
    $link['hidden'] = 1;
  }
}


Or can use hook_menu_alter() to redirect to other URL. For example:

/**
 * Implements hook_menu_alter().
 */
function MYMODULE_menu_alter(&amp;$items) {
  $items['node/add/dummy-type']['page callback'] = 'drupal_goto';
  $items['node/add/dummy-type']['page arguments'] = array('node/1');
}


You can also use hook_menu_alter() to hide the links:

/**
 * Implements hook_menu_alter().
 */
function MYMODULE_menu_alter(&amp;$items) {
  $items['node/add/dummy-type']['access callback'] = FALSE;
}