Hi guys, I know this is a off topic but since Iptables is a security tool, I will ask this question with regards also on security. Here it goes. 1. what is the most commonly used LIDS system? 2. what is the best LIDS? 3. what is the most sophisticated LIDS? 4. what is the most easiest to setup? 5. what LIDS can you suggest on CentOS? thanks