I updated our Ubuntu server from 11.04 to 11.10. Every time the installation asked whether to overwrite or keep current the "keep current" action was chosen. Still, after the restart all sites worked (are accessible to all), but it seems the server does not allow the pages to make outside contacts, since: Litespeed error: [LICENSE] Failed to send registration request. Magento: Magento downloader gives "host not available" when trying to install extensions, emails are not being sent and paypal payments do not get verified. Iptables shows empty (iptables -L). I runned the command sudo ufw disable. I cannot figure out what is blocking the connection. Can you guys help?