one rss from all forums?

For everything, I eventually found it coming out at q=node/feed
That'll include new non-forum pages too however...

http://www.coders.co.nz/

Most content in Drupal has an associated feed. What you can do is turn on the aggregator module and aggregate all of the forum feeds into a single aggregator category.

1. Add all forum feeds to the aggregator module.
2. Create aggregator category.
3. Voila, your new category feed is your new "all forums" feed.

All you would need to do then is to create a custom RSS link pointing to that feed and...that's about it.

---
Shane Birley
Vicious Bunny Creative
http://www.vbcreative.com

I've been trying to get this working for ages. Finally found the answer.
On top of what Shane Birley wrote above, you have to change permissions for the aggregator module for anonymous users.

so, to summarise

1. go to permissions and enable "access news feeds" for the aggregator for anonymous users.
2. Go to the aggregator module, create a new aggregator category, say "myrss1".
3. Add all forum feeds to aggregator module and select "myrss1" each time.
4. Back in the feed aggregator list view, click on "myrss1" and scroll to the bottom of the page. Click on the RSS feed symbol - this is your RSS feed available in any reader to anyone.

Hi, I stumbled accros this old post since I was facing the same problem.
After various attempts the solution seemed fairly easy: http://mysite.com/taxonomy/term/211+212+213+215+216+217/all/feed
Simple combine all the terms of your forum into one URL, solved my troubles.

I came across this as well. A fairly easy solution, if you have Views installed, is to create a View of all Forum nodes, and add an RSS feed as one of the view's displays.

Settings

Filters:

• Published: Yes
• Node type: Forum Topic

Row style: Node

Here is an export of the view I used. Hope this helps. Note that this just gets nodes; you'd need a separate view for the comments that get added to the forum topics.

$view = new view;
$view->name = 'forum_rss_feed';
$view->description = 'Forum RSS Feed';
$view->tag = '';
$view->base_table = 'node';
$view->core = 6;
$view->api_version = '2';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */
$handler = $view->new_display('default', 'Defaults', 'default');
$handler->override_option('sorts', array(
  'timestamp' => array(
    'order' => 'DESC',
    'granularity' => 'second',
    'id' => 'timestamp',
    'table' => 'node_revisions',
    'field' => 'timestamp',
    'override' => array(
      'button' => 'Override',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('filters', array(
  'status' => array(
    'operator' => '=',
    'value' => '1',
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'status',
    'table' => 'node',
    'field' => 'status',
    'override' => array(
      'button' => 'Override',
    ),
    'relationship' => 'none',
  ),
  'type' => array(
    'operator' => 'in',
    'value' => array(
      'forum' => 'forum',
    ),
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'type',
    'table' => 'node',
    'field' => 'type',
    'relationship' => 'none',
  ),
));
$handler->override_option('access', array(
  'type' => 'none',
));
$handler->override_option('cache', array(
  'type' => 'none',
));
$handler->override_option('items_per_page', 30);
$handler->override_option('row_plugin', 'node');
$handler->override_option('row_options', array(
  'relationship' => 'none',
  'build_mode' => 'teaser',
  'links' => 1,
  'comments' => 0,
));
$handler = $view->new_display('feed', 'Forum Topic Feed', 'feed_1');
$handler->override_option('filters', array(
  'status' => array(
    'operator' => '=',
    'value' => '1',
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'status',
    'table' => 'node',
    'field' => 'status',
    'override' => array(
      'button' => 'Override',
    ),
    'relationship' => 'none',
  ),
  'type' => array(
    'operator' => 'in',
    'value' => array(
      'forum' => 'forum',
    ),
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'type',
    'table' => 'node',
    'field' => 'type',
    'override' => array(
      'button' => 'Use default',
    ),
    'relationship' => 'none',
  ),
));
$handler->override_option('style_plugin', 'rss');
$handler->override_option('style_options', array(
  'mission_description' => FALSE,
  'description' => '',
));
$handler->override_option('row_plugin', 'node_rss');
$handler->override_option('row_options', array(
  'relationship' => 'none',
  'item_length' => 'fulltext',
));
$handler->override_option('path', 'feeds/forum');
$handler->override_option('menu', array(
  'type' => 'none',
  'title' => '',
  'description' => '',
  'weight' => 0,
  'name' => 'navigation',
));
$handler->override_option('tab_options', array(
  'type' => 'none',
  'title' => '',
  'description' => '',
  'weight' => 0,
  'name' => 'navigation',
));
$handler->override_option('displays', array());
$handler->override_option('sitename_title', FALSE);