Drupal

Drupal Varnish Integration

https://drupal.org/project/varnish

Don't forget to add this to your settings PHP to tell Drupal to use Varnish instead of it's built in cache.

// Add Varnish as the page cache handler.
$conf['cache_backends'] = array('sites/all/modules/varnish/varnish.cache.inc');
$conf['cache_class_cache_page'] = 'VarnishCache';
// Drupal 7 does not cache pages when we invoke hooks during bootstrap. This needs
// to be disabled.
$conf['page_cache_invoke_hooks'] = FALSE;

Drupal Varnish Dashboard

https://drupal.org/project/varnish_dashboard

Get the free varnish Agent. You don't need the commercial version.

git clone https://github.com/varnish/vagent2.git

Varnish Agent dependencies:

yum install varnish-libs-devel

Kill Google Analytics Cookies

// Remove has_js and Google Analytics cookies.
set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|has_js)=[^;]*", "");

Change user passwords with Drush

drush user-password someuser --password="NewPassWd"