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https://www.drupal.org/project/drupal/issues/2946
https://www.drupal.org/node/77106
https://www.drupal.org/forum/support/post-installation/2006-08-25/drupal-session-cookies
https://drupal.stackexchange.com/questions/196632/create-cookie-on-login
https://stackoverflow.com/questions/6970754/why-are-my-cookies-not-setting/21769906
https://stackoverflow.com/questions/2766246/my-cookies-wont-stay-php
http://php.net/manual/de/function.setcookie.php
https://www.mydropwizard.com/legal/cookie-policy
https://www.advomatic.com/blog/drupal-for-privacy-buffs-configuring-your-drupal-6-site-to-work-without-cookies-for-anonymous-users
https://2bits.com/articles/reducing-server-load-eliminating-anonymous-sessions-drupal-6x.html
https://www.mediawiki.org/wiki/Extension:AuthDrupal
https://www.girls-brigade-scotland.org.uk/cookies-and-your-privacy
https://symfony.com/doc/current/security/remember_me.html