Shami’s Blog

EDIT: This post only covers IPv6, please check the update post which covers IPv6 and Firefox

Today when I rebooted to my Windows installation which I very rarely do, I noticed that browsing under Windows feels much faster than under Ubuntu. After booting back to Ubuntu I noticed the “looking up domain.tld” part was taking a lot of time, which seemed a little odd.

Anyways, after some googling I found out that Debian enables IPv6 by default and uses that before and uses it before IPv4. A quick remedy was:

sudo vi /etc/modprobe.d/bad_list

#Add this line
alias net-pf-10 off

After which you should reboot your system. Now browsing feels much faster. To speed it up a little I installed a local caching DNS server which works like a charm. A quick HOWTO can be found here

Hope this helps.

You might want to create a site that doesn’t have RSS. I did this for my employer to create the admission exam system. Having the RSS icons show up just annoyed me, here is how to do it:

In theme.inc, just comment all the code lines in this function:

function theme_feed_icon($url) {
//  if ($image = theme('image', 'misc/feed.png', t('Syndicate content'), t('Syndicate content'))) {
//    return '<a href="'. check_url($url) .'" class="feed-icon">'. $image. '</a>';
//}
}

In common.inc do the same with this function except for the first and last lines:

function drupal_add_feed($url = NULL, $title = '') {
  static $stored_feed_links = array();

/*  if (!is_null($url)) {
    $stored_feed_links[$url] = theme('feed_icon', $url);

    drupal_add_link(array('rel' => 'alternate',
                          'type' => 'application/rss+xml',
                          'title' => $title,
                          'href' => $url));
  }*/
  return $stored_feed_links;
}