Hi, I have following questions regarding Netfilter/Iptables. I would ge glad if you could answer then ASAP 1. What Attacks does it protect against? 2. What are the Compatibility Issuses? 3. Dow do we implement this technology? 4. How commonly is this used? 5. when do you think one should use it? Tankx for all the help. waiting for your reply. Regards Jitin Sahni