JUST ANOTHER YET GUIDE

Create start.php

function theme_init() {

if (!elgg_is_logged_in()) {
    forward('blog/all');
}

else{
    forward('activity');
}

}

 

elgg_register_event_handler('init', 'system', 'theme_init');

Add  aboving file in new folder named as theme

Don't forget about manifest.xml !!!

Add theme folder in mod/ directory and activate new plugin Theme in Administration->Plugins

Check on now ;)

Lazy way is using Fair Forwarding plugin

I can't get the plugin code to work. It gets into some kind of a forwarding loop.  I can not find the plugin that you mentioned.

So what I actually want to change is the page that is displayed when somebody (not logged in) happens to visit my site.  Right now if displays the activity list and a login box on the right.  I want it to be the blog list instead of the acvtivity list.

So this is the code that puts together the default page.  Can I change the $content to reflecg blogs instead?

$content = elgg_view_title(elgg_echo('content:latest'));
$content .= elgg_list_river();

$login_box = elgg_view('core/account/login_box');

$params = array(
        'content' => $content,
        'sidebar' => $login_box
);
$body = elgg_view_layout('one_sidebar', $params);
echo elgg_view_page(null, $body);

Yes. by replacing

$content .= elgg_list_river();

with

$content = elgg_list_entities(array(
'type' => 'object',
'subtype' => 'blog',
'limit' => 10,
'full_view' => false,
'view_toggle_type' => false
));

-----

But this is not recommended as you have to do this change everytime a new version of elgg is released. 

Instead, use the index page hook and create your own index page. Take a look at the bundled custom_index plugin.

@Flying Dutchman https://github.com/AU-Landing-Project/fair_forwarding