Disclaimer

Times have changed. This section did say "I am not, nor do I pretend to be, a security expert." Now I am one. My offical title is Security Analist. So maybe I know something about what I write. But please, I am writing this to help people get aquainted with this subject. I am not ready to stake my life on the accuracy of this document. If all you know about firewalls is based on this document, don't stake your job on your firewall. I AM NOT RESPONSIBLE FOR ANY DAMAGES INCURRED DUE TO ACTIONS TAKEN BASED ON THIS DOCUMENT.