Security is an hot topic in a VoIP environment, so that, I think that would be a great idea to share the knowledge between us. I kwow that it is a huge topic, and this thread shoud grow up dramaticaly for the average of a discussion, but in my opinion this is a goal that all the community want to reach. What do you think if we share tips, books, documents about this topic? We could examine all the small parts like firewall, strong passwords, rkhunter, fail2ban ecc... ecc... The goal of the topic is to became a "Spotlight Topic" to help everyone here in the fastest way possible. People, what do you think about it?