// PuSH - aka pubsubhubbub URL. This makes delivery of public posts as fast as private posts
-$a->config['system']['huburl'] = 'http://pubsubhubbub.appspot.com';
+$a->config['system']['huburl'] = '[internal]';
// Server-to-server private message encryption (RINO) is allowed by default.
// Encryption will only be provided if this setting is true and the